Transient Structural Analysis Vs Static Structural 

[William H Greene; United States. 1 Definition of Structural Analysis. In the transient analysis I would like to see the total deformation, for example, over the cooling time. It provides efficient and accurate analysis together with a highperformance prepost processor. The structural analysis nonlinearities that are covered in solution 400 include: • Geometric Nonlinearity • Material Nonlinearity • Failure and Fracture Analysis • Contact Analysis • Coupled Analysis • Chained Analysis Geometric Nonlinearity Geometric nonlinearities manifest when the structure undergoes. Material Properties D. I know how to export this data for one time step, but it isn't efficient when I need to do it for 100 time steps. Wings” as R&M 1155 in August 1928. Create a Named Selection for the component of nodes corresponding to the mirror electrode. Bending of metallic and laminated composite plates and shells. Nagar, India. Certain types of load patterns are multistepped, meaning that they actually represent many separate spatial loading patterns applied in sequence. png 2,525 × 232; 116 KB Sylmar085Input in fractions of 'g'. How to leverage the robustly converging model 5. The structural analysis which follows is not exhaustive. Ask our Community!. Conduct linear perturbation analysis based on the nonlinearly deformed state. The structure can be animated to see how it responds to the transient loads. Linear static analysis. With structural analysis, you can predict how components behave under loading, vibration, and other physical effects. Excess load or overloading may cause structural failure, and hence such possibility. 2: Transient Analysis on the Bridge  Free download as PDF File (. After a transient thermal analysis I tried to perform a transient structural analysis. Multiple Step Analysis: A multiple step analysis can be defined in Workbench Mechanical using Analysis Settings. In ANSYS, Frictionless Support provide Support in normal direction to the selected face or edge. Analysis of the Structure – A thorough analysis of the structure according to the principles of structural engineering will ensure that the new building or structure is up to all necessary design codes. International Consolidated Airlines Group, S. This type of failure is classified as fatigue fracture. Engineering Calculators Menu Engineering Analysis Menu. 4 Modal analysis 1 setup 25 5. In Mechanical, drag and drop the Fixed Supports from the Static Structural to the Modal branch. Results and. In house Engineering. ABS GUIDANCE NOTES ON STRUCTURAL ANALYSIS OF SELFELEVATING UNITS. OptiStruct is a proven, modern structural solver with comprehensive, accurate and scalable solutions for linear and nonlinear analyses across statics and dynamics, vibrations, acoustics, fatigue and multiphysics disciplines. I have a transient thermal and static structural analysis with many time steps. Solving Models K. It eliminates geometry preparation and meshing: the two most timeconsuming, expertiseextensive and errorprone tasks performed in a conventional structural simulation. Structural Loads ppy the structure. –User must select coupledfield elements. a structure will be adequately lower than the permissible limits, and failure of structural will not occur. ; Dunbar, P. Dynamic analysis can be used to find dynamic displacements. edu and [email protected] You can apply the peak force from a piston onto the bearing face of the crankshaft at the correct angle, and repeat this for each piston. In this case – you have to be extremely cautious before using a static structural analysis instead of dynamic. A typical ANSYS analysis has three distinct steps: Build the model. Perform a 2D planestress elasticity analysis. We will include discussion of the stress analysis of the onedimensional bar, beam, truss, and plane frame. Scientists in our Dana Point, CA and Camden, AR facilities have considerable experience and expertise in the development of detailed test plans and procedures to high level program requirements, failure investigation and analysis, ordnance product design, reverse engineering. The total cooling time is 7000s. 1 Definition of Structural Analysis. Apply loads and obtain the solution. More Interesting Description:First in this course, we review the basics of structural analysis and design before moving on to the methods used by computers (matrix methods). With structural analysis, you can predict how components behave under loading, vibration, and other physical effects. The first type 153 is for static structural with steady state heat transfer, or just steady state heat transfer. Structural loads or actions are forces, deformations, or accelerations applied to a structure components. Elastic ratios for various wood species at approximately 12% moisture content  see bottom of webpage. structural behavior of multistorey building for different plan configurations like rectangular, C, L and Ishape. analysis software for structural physics that could simulate static (stationary), dynamic (moving) and thermal (heat transfer) problems. This degenerate (manytoone) functionstructure mapping is crucial for understanding the nature of brain networks. The transient stress and structural analysis is preferred to choose the low stress material for better performance. Simcenter features a complete range of integrated linear analysis functionality, including analysis for linear statics, normal modes and buckling. U N I V E R S I T Y O F. Date: 10/9/2014 Applied CAx / Predictive Engineering White Paper – Please share with your Friends Page 22 of 43. In the transient analysis I would like to see the total deformation, for example, over the cooling time. OptiStruct is a proven, modern structural solver with comprehensive, accurate and scalable solutions for linear and nonlinear analyses across statics and dynamics, vibrations, acoustics, fatigue and multiphysics disciplines. A responsespectrum analysis can be used to determine how a component responds to earthquakes. The linear static analysis of a structure involves the solution of the system of linear equations represented by K u = r. If so, then the. This is also referred to as the modulus of rigidity. happen at the second critical time. Dynamic Structural: Response Spectrum Results • Deformation • Velocity • Acceleration • Stresses. Structural loads or actions are forces, deformations, or accelerations applied to structure components. The total cooling time is 7000s. Aircraft Design Loads and Certification Feb 12. You can specify the number of calculation steps and the time range. Analysis methods include both static representation and nonlinear transient loadings. This parameter is used along with PARAM, G. Click for video with results on. We develop it for structural engineers, fabricators, detailers and all others who perform or use structural analysis. Fiverr freelancer will provide 3D Models & Product Design services and do static and transient structural analysis including 3D Animation within 2 days. Topology Structural Optimization of Bracket. The program also allows you to create combined structures as well as model solid and contact elements. Dynamic analysis can be used to find dynamic displacements. , Transient Loads Select Static Analysis Method and. The structural analysis which follows is not exhaustive. In structural Engineering the frames are classified in two broad categories: 1) Perfect frames and 2)Imperfect frames. 0 or later lets you take the mode shape from a linear Eigenvalue Buckling. Through the use of Extreme Loading ® for Structures (ELS) software, structural engineers can perform significantly advanced structural vulnerability assessments, thereby helping to better understand the performance of a structure’s glazing. Scheme 1 Scheme 2 • We use the unit load method to compute deflections. Using Abaqus, commercial FEM software, both static and dynamic structural analyses were performed. The purpose of this tutorial is to explore the dynamic analysis capabilities of ANSYS. In addition, new capabilities for NVH and Fatigue analyses as well as Optimization will be presented. Structural elements that make up a residential structural system include: • bending members;. Regarding the fatigue – I would greatly appreciate if you have the time to write a post about fatigue analysis based on random vibrations. Small and easy to use FEA analysis, with a user friendly Windows interface to make your life easy. The question you need to ask is: what am I going to find out and design for, using a transient load FEA calculation, that I cannot with a static or quasistatic FEA calculation? If it is to compute the frequency response or fatigue curve of a st. 2 Transformation of dynamic loads into equivalent static loads based on modal analysis. Transient dynamic analysis in the time domain provides a reasonable estimate of riser and vessel response during driftoff. The second analysis type 159 is for cases when either the structural or heat transfer models are transient (dynamic). Table 1 present linear static analysis results for the investigated guyed towers (50m, 70m and 90m high), according to the three earlier mentioned structural models. Thermal load is specified at the appropriate location. 2016 Foreword Foreword The guidance contained herein should be used in conjunction with the ABS Rules for Building and Classing Mobile Offshore Drilling Units for the purpose of ABS Classification of a SelfElevating Unit. The easiest way to interpret structural stiffness mathmatically is with the following expression: (1) where is structural stiffness, is a point load that causes a displacement , and is a moment that causes a rotation. The structuralfunctional approach is a perspective in sociology that sees society as a complex system whose parts work together to promote solidarity and stability. 1 shows this for two fuzzy uncertain parameters. I know how to export this data for one time step, but it isn't efficient when I need to do it for 100 time steps. Thermomechanics. In the transient analysis I would like to see the total deformation, for example, over the cooling time. I decided to selfpublish my book in order to retain my copyright as well as the creative control. If you put a dummy load, like 10lbf, then the total load that will cause buckling is F*Load Factor (l). extend A relationship from an extension use case to a base use case, specifying how the behavior for the extension use case can be inserted into the behavior defined for the base use case. The importance of stability theory to various ﬁelds of engineering and applied science is pointed out and the history of the discipline is brieﬂy sketched. Some physical details for the idealized support conditions of Table 1 are shown in Figs. variations at different locations on the wing. We will describe how to design, reinforce and check the prestressed concrete doublespan beam according to Eurocode. He wrote a treatise on the vault, studying exhaustively this building technique and the way it is constructed. Structural Vibration Analysis vs. Subsections of a design can be modeled and then larger groupings of these elements can again be modeled. The video introduces you to the Structural Mechanics Module by outlining the Static Linear Analysis model. Model: Material: The material is stainless steel for sphere ball and stainless steel NL for the plate. If you are encountering an instability running a dynamic load case with PDelta, first run the analysis without PDelta to make sure the displacements are reasonable. Design and Analysis of Automotive Powertrain Using Static, Model, Thermal and Transient Structure Analysis Techniques Rahul Pratap Yadav P. The primary mirror, being an important element in the. Step 5: Bending Analysis Flexure, bending, moment, torque Highest at midspan for uniform load Pulling stress or tension on bottom face of member 35 Step 5A: Determine F’b (psi) Allowable bending stress, F’b The maximum bending stress permissible for a specified structural member Units for stress:. (NYSE:XPO) Q1 2020 Earnings Conference Call May 5, 2020 08:30 ET Company Participants Brad Jacobs  Chairman and Chief Executive Officer Dav. This phase is critical to the success of the project. Powerful Finite Element Analysis software for Structural Engineering of Steel construction of Frame and Truss Design. The training material that you can download from ANSYS says:. During this time, many members. Since structural analysis is based on solving the unknown forces (or displacements) within a structure using some equations, it is essentially the comparison of the equations and unknowns that determine the stability of a structural system. Our stateoftheart computing cluster paired with the full suite of Ansys® FEA tools enables us to tackle any type of problem, no matter the scale or complexity. Cosimulation with Simcenter Nastran Beyond structural solutions, Simcenter Nastran also enables cosimulation of structural, thermal and flow physics. There is a lot more structural engineering software development over the years. Loads cause stresses, deformations, and displacements in structures. The video introduces you to the Structural Mechanics Module by outlining the Static Linear Analysis model. 5 Overview of Steps. This helps you design robust mechanical components by validating designs through simulation and reducing the need for. Perform a 2D planestress elasticity analysis. txt) or read online for free. Analysis methods include both static representation and nonlinear transient loadings. time) Seismic Design 11 Lecture 16 Architectural Structures III ARCH 631 F2007abn Earthquake Design Loads • derived from W & amplification factors • at base of structure: – Z, zone – I, importance (1. The question you need to ask is: what am I going to find out and design for, using a transient load FEA calculation, that I cannot with a static or quasistatic FEA calculation? If it is to compute the frequency response or fatigue curve of a st. The aim of structural analysis is to design a structure that has the proper strength, rigidity, and safety. Our stateoftheart computing cluster paired with the full suite of Ansys® FEA tools enables us to tackle any type of problem, no matter the scale or complexity. Model: Material Selection only on upper joint/part connected to spring. Each connection is designed so that it can transfer, or support, a certain type of load. Structural dynamics is a type of structural analysis which covers the behavior of a structure subjected to dynamic (actions having high acceleration) loading. The total cooling time is 7000s. ; Dunbar, P. Colorful terms such as 'geometric buckling' give a vivid picture of what can happen when parts fail. Structural Analysis Workflow. Through our FEA services, we have the capability to use worldclass FEA software assist you in solving complex structural engineering problems so as to enable you to make a calculated and accurate engineering design decision within a shorter span of time. The above statements are related to such things as "yield strength" or "compressive strength" which are related to the load/stress point at which a material will either transform from elastic to plastic deformation or suffer a tensile or compressive failure but do not necessarily imply or indicate that the tensile and compressive modulus (strain vs stress) is different. To perform a transient structural analysis on a double universal joint with a spring using three different materials Structural Steel, Stainless Steel and Titanium alloy on the joint with the spring. 2 Transient Analysis Load in Freq. The loads applied to the structure are known at each instant in time. Use a Transient Structural system with Time Integration set to Off. structural modifications, or predict how the structure will perform under changed operating conditions. WELDSSTATIC AND FATIGUE STRENGTHIII Version II 32 1 WELD  STATIC AND FATIGUE STRENGTH III 1. Static Vs Dynamic Finite Element Analysis. By combining the electron–phonon coupling effect and the static coupling formalism, we calculate, through the firstprinciples methods, the carrier capture cross sections of the three possible nonradiative recombination center (NRRC) defects in Cu2ZnSnS4. œ To create a project vibration database useful for the project itself and for future research. Chapter 3  Design Loads for Residential Buildings 0. Newton Excel Bach, not (just) an Excel Blog  Great site with lots of usefull Excel programs and functions for scientists, structural engineers and students. Skyscrapers, bridges and other structures must withstand multiple shortduration transient shock/impact loadings, common in seismic events. 0 INTRODUCTION A component or a structure, which can withstand a single application of load, may fracture if the same load is applied a large number of times. Download Structural Analysis by R. These methods differ in calculation method, and also in range of applicable types of load. Example Input for a Nonlinear Transient Analysis 8. I have a transient thermal and static structural analysis with many time steps. The main difference between the static and transient procedures is that timeintegration effects can be activated in the transient analysis. static aeroelasticity flight mechanics aerodynamics dynamics structural elasticity dynamics Figure 1. Structural Mechanics. LESSON 3 Transient Response of a Rocket PATRAN 322 Exercise Workbook 315 Results Summary: The displacements at node 1 can be compared to the analytical predictions given by Theory of Matrix Structural Analysis, J. 1 Standard Update of Structural Stiffness Matrix. DETERMINATION OF DYNAMIC SOIL PROPERTIES USING GEOPHYSICAL METHODS Ronaldo Luna and Houda Jadi Department of Civil Engineering, University of MissouriRolla, Rolla MO, 65409; [email protected] Transient Analysis of a Cantilever Beam Introduction This tutorial was created using ANSYS 7. It asserts that our lives are guided by social structures, which are relatively stable patterns of social behavior. Structural versus ReducedForm Terminology Structural models often imply a “reducedform,” meaning a statistical model describing the relation between the observables generated by the model. 2016 Foreword Foreword The guidance contained herein should be used in conjunction with the ABS Rules for Building and Classing Mobile Offshore Drilling Units for the purpose of ABS Classification of a SelfElevating Unit. The steady state is the state that is established after a certain time in your system. analyse transient structural events •It is used for simulating fracture, cutting, failure, buckling, impact, drop as well as highly nonlinear quasistatic simulations that the implicit APDLbased solvers would struggle to converge •Users with an Autodyn level license have access to the Explicit Dynamics interface in. If you put a dummy load, like 10lbf, then the total load that will cause buckling is F*Load Factor (l). Brush up on the topics and skills you'll. Segregation of public education existed until the Supreme Court considered arguments by the schools requesting relief concerning the task of desegregation. Any structure can be subjected to dynamic loading. ; Dunbar, P. The above process is called transient analysis. The selection of materials and member type, size, and configuration to carry loads in a safe and serviceable fashion. Structural (static and transient): Linear and Nonlinear Structural analyses. This is also referred to as the modulus of rigidity. Steel Deck Institute Diaphragm Design Manual. Due to the several types of dynamic analyses and the different mathematical form of each, some knowledge of both the physics of dynamics and the manner in which the physics is represented is. The loads and boundary conditions are mentioned in the Table 2. The commercial software ABAQUS is used for the structural analysis because of its flexibility and its. Western PreCooling System. TUTORIAL 21: ANSYS Workbench Transient structural FEA of a small skid steer loader. Also, visit our blog post here for our top 7 excel spreadsheets for structural engineering design and analysis! Let us know if you have any spreadsheets that you would love to recommend. There is a lot more structural engineering software development over the years. The loads applied to the structure are known at each instant in time. Scheme 1 Scheme 2 • We use the unit load method to compute deflections. ANSYS is a general purpose software, used to simulate interactions of all disciplines of physics, structural, vibration, fluid dynamics, heat transfer and electromagnetic for engineers. Ordnance Sciences Services. usage is quite similar to transient analysis: the defined sources correspond to distinct sound sources. it is about static test for seat bus. e, defining a PSD of the accelerations an item would be subjected to, and using the. By Nicholas M. Glass Performance Analysis A large portion of personal injuries resulting from the effects of an extreme external force on a structure are due to glass fragmentation. These forces should then be applied on the structural system at hand in order to design structural members, sections and connections that will ensure sufficient robustness of the building to survive the effects of the computed actions. Finite Element Analysis. Transient Structural Analysis of Piston. The transient stress and structural analysis is preferred to choose the low stress material for better performance. Its helpful for doing basic Analysis. Vibration analysis procedure Step 1: Mathematical modeling. The parts that are not connected will be floating about this large displacements in the solution. You can specify the number of calculation steps and the time range. NOTEIf you want structural analysis (displacement and stress, such as Von Mises and factor of safety) as well as thermal analysis (temperature and applied temperature), then create a thermal coupled study. SAP2000 can perform both linear static and multistep static analysis. Similarly, several definitions for the shock response spectrum are: The shock response spectrum is a graphical representation of an arbitrary transient acceleration input, such as shock in terms of how a single degree of freedom (SDOF) system (like a mass on a spring) responds to that input. A static analysis can include steady inertia loads (such as gravity and rotational velocity and accelerations), and time varying loads that can be. Perfect frames are the frames which can be analysed to get the internal member forces and external support reactions by using the three conditions of static equilibrium. at that picture, there are 2 bars will push the seat back. SOLIDWORKS Simulation Professional SOLIDWORKS Simulation Professional delivers easytouse, powerful capabilities to carry out sequential multiphysics. The 3D structural frame analysis program RSTAB is the ideal tool for the design of beam, frame, or truss structures consisting of steel, reinforced concrete, timber, aluminum, or other materials. Structural Engineering is a Civil Engineering discipline which emphasizes analytical and experimental studies of the behavior of structures (e. Although it is not necessary, other structural engineering software that you should learn are SAP2000, TEKLA, RAM Structural, Robot Structural Analysis, Limcon, ACI RCM, Midas, Tedds, ADAPT and RAPT to name a few. Important examples related to civil engineering include buildings, bridges, and towers; and in other branches of engineering, ship and aircraft frames, tanks. Nagar, India. the Structural Analysis at the universities for graduate and postgraduate students as well as on the basis of their experience in consulting companies. Expectations need to be fleshed out in great detail and documented. This analysis connected to Static/Transient Structural analyses will be used to compute reinforcement ratios of concrete structures (see Figure 2). Structural modeling. •Results can be viewed step by step. Note the 10 percent variation (2355 vs. Dynamic relaxation. the stiffness beahvior of. Method of Analysis Equivalent Static Force Method In the present study, the analysis of the structure is made for seismic loads using Equivalent Static Force Method because of symmetry of the structure, both in geometry and in mass. Structural and Thermal Analysis of Brake Disc Viraj Parab1, Kunal Naik2, thermal analysis, static analysis. Live loads refer to the dynamic forces from occupancy and intended use. By mastering these steps, you can quickly learn how to do other analyses. While all the modes extracted in a coupled Lanczos structuralacoustic natural frequency analysis include the effects of fluidsolid interaction, some of them may have predominantly structural contributions while others may have predominantly acoustic contributions. Deflection Analysis of Bracket. Important examples related to civil engineering include buildings, bridges, and towers; and in other branches of engineering, ship and aircraft frames, tanks. Stiffness analysis Weight influence Influence of a temperature Modal analysis Harmonic analysis Transient structural analysis Command control MOR4ANSYS, Model Order Reduction Transient thermal analysis. In this handson lab, we'll explore the simple, powerful, roundtrip workflow between Revit 2018 software and Robot Structural Analysis Professional 2018 software. The linear static analysis of a structure involves the solution of the system of linear equations represented by K u = r. The parts that are not connected will be floating about this large displacements in the solution. Also, visit our blog post here for our top 7 excel spreadsheets for structural engineering design and analysis! Let us know if you have any spreadsheets that you would love to recommend. Users must turn on Inertia Relief in the Analysis Settings for the static structural environment, and supply just enough constraint to prevent rigid body motions in X, Y, Z, ROTX, ROTY and ROTZ. This phase is critical to the success of the project. For regular structures under 73m height use static while for regular structures more than 73m height use dynamic analysis. Introduction 2. Onsite investigation, monitoring and troubleshooting of piping, static equipment and structural vibration issues Advanced engineering , including fitnessforservice level 3, nonlinear FEA and CFD Complimentary screening software Veridian™ to track, assess and manage piping vibration and integrity risks in an easytouse, webbased platform. , buildings, bridges, and dams) under service loads (e. The following topics are available for structural static analysis: 2. A static structural analysis calculates the effect of steady (or static) loading conditions on a structure, while ignoring inertia and damping effects, such as those caused by time varying loads. The dimensions of brake disk used for transient thermal and static structural analysis are shown in Fig. Landing gear, Materials, Stress analysis, Deformation, Structural Safety. Solve linear static, transient, modal analysis, and frequency response problems. Solve the Modal. Learn about performing a structural analysis of a design using Autodesk Revit within a Building Information Modeling (BIM) workflow. linear, static analysis to a complex, nonlinear, transient dynamic analysis. This also includes strain rate effects which influence the strength of the structure. Hi I have a part that I need to evaluate for a pressure load, however, the material is defined as ABS, the kind used for 3D printing. These capabilities include Modal Analysis: Determining the mode frequencies and mode shapes of structures. Transient acceleration loadssuch as shocks, are not as common as static loads,. At this stage a shock loading was considered, simulating the pass over a 20 mm obstacle on the road surface [5], [6]. StepbyStep Convergence Procedure 4. If so, then the. This panel is the answer to a structurally stable, inorganic product that offers easy foundation installation and solves. Ideally I would have a measurement every 100 seconds, but unfortunately I do not fully understand the parameters marked. Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease linked to the misfolding of Cu/Zn superoxide dismutase (SOD1). In the case of a blast load or drops or shocks, your load duration is so much shorter than your structures natural frequency. Deflection Analysis of Bracket. Model: Material: The material is stainless steel for sphere ball and stainless steel NL for the plate. Although it is not necessary, other structural engineering software that you should learn are SAP2000, TEKLA, RAM Structural, Robot Structural Analysis, Limcon, ACI RCM, Midas, Tedds, ADAPT and RAPT to name a few. Characterizing the limits of allowable strain is another fundamental analysis in structural engineering.  Software : Ansys Workbench (Static Structural & Modal)  Finite Element Modeling of a semisubmersible subjected to wind, water wave and crane loads  Performed Modal analysis for a semi. Evaluation of finite element tools for transient structural 5. The analysis guide manuals in the ANSYS documentation set describe specific procedures for performing analyses for different engineering disciplines. Reinforcement Needed! Evaluating structural reinforcing pads (repads) for a vertical ASME Pressure Vessel. You can also perform structural analysis with limited access to nonlinear capabilities. There is a vast range of analysis tools offering speed, precision and economy of design; 3D, FE modelling, bespoke portal frame, cellular beam or plate girder design software are now widely available. ANSYS and LSDYNA used for structural analysis. Loads cause stresses, deformations, and displacements in structures. , wind and earthquake). Anticipating worst case deformation and strain in a structure can mean the difference between a successful design and disaster. Linear analysis is used to solve static problems, such as determining if a structure will fail under a prescribed load, and can also be used to solve transient problems where loads change over time. A static structural analysis determines the displacements, stresses, strains, and forces in structures or components caused by loads that do not induce significant inertia and damping effects. BC (ground nodes) •[Substepping]. Apply loads and specify load step options in the same manner as you would for a full linear transient dynamic analysis. These capabilities include Modal Analysis: Determining the mode frequencies and mode shapes of structures. I know how to export this data for one time step, but it isn't efficient when I need to do it for 100 time steps. Monolithic time integrators (accuracy and stability) with and without algorithmic damping. advanced masters in structural analysis of monuments and historical constructions xi A BSZTRAKT Cím: Síkjukra merőlegesen terhelt falazott szerkezeti elemek viselkedésének vizsgálata numerikus. INTRODUCTION Computeraided design (CAD), also known as computeraided design and drafting (CADD). , Pantnagar, U. After a transient thermal analysis I tried to perform a transient structural analysis. It is the industryleading and most widely used solution for structural design and optimization. ” Their treatment for the analysis and prevention of the ﬂutter. It is one of the most stressed parts. Structural analysis is the process of calculating the forces, moments and deflections to which the members in a structure are to be subjected. Regarding the fatigue  I would greatly appreciate if you have the time to write a post about fatigue analysis based on random vibrations. Background on Linear Analysis In Chapter 4 of the Workbench – Simulation Intro course, the assumptions and restrictions related to performing linear static structural analysis were covered: The matrix equation solved for is Hooke’s Law: Because [K] is assumed to be constant, essentially only linear. nonconstant. Help us complete a verification checklist for a static structural analysis. See the theory manual for more insights. transient structural response. •Transient structural analysis provides users with the ability to determine the dynamic response of the system under any type of time varying loads. There is also a third type under the modal superposition method which is used mainly for seismic analysis: Shock and response analysis using a response spectrum. TRANSIENT THERMAL ANALYSIS Transient Thermal analysis is used to determine the temperatures and thermal. Dynamic loads include people, wind, waves, traffic, earthquakes, and blasts. This phase is critical to the success of the project. The solution will start from any selected time step. Modulus of elasticity also referred to as Tensile Modulus or Young's Modulus. Transient dynamic analysis is a technique used to determine the dynamic response of a structure under a timevarying load.  Software : Ansys Workbench (Static Structural & Modal)  Finite Element Modeling of a semisubmersible subjected to wind, water wave and crane loads  Performed Modal analysis for a semi. Fiverr freelancer will provide 3D Models & Product Design services and do static and transient structural analysis including 3D Animation within 2 days. 0 Introduction. After a transient thermal analysis I tried to perform a transient structural analysis. – evaluate structural response (spectrum) to earthquake (motion vs. •Load values for each step can be entered in the “Tabular Data”. 6 Tutorials Lecture # 2 Static Structural Analysis Example 1  Static Analysis of a Bracket. Dynamic Structural: Response Spectrum Results • Deformation • Velocity • Acceleration • Stresses. Static Analysis and Transient Analysis approaches were used to evaluate the computer model. Principals of Vibration Analysis: Normal Modes to PSD to Direct Transient. SOLIDWORKS Simulation Professional SOLIDWORKS Simulation Professional delivers easytouse, powerful capabilities to carry out sequential multiphysics. Brush up on the topics and skills you'll. 2, Tim Milot. Well, basically every system has a transient and a steady state. A static analysis can include steady inertia loads (such as gravity and rotational velocity and accelerations), and time varying loads that can be. • Variable bearing loads, thermal loads, and the. Exceptions will be noted accordingly A. The training material that you can download from ANSYS says:. Material Characterization! Structural goals vs material parameters 3. 0 INTRODUCTION A component or a structure, which can withstand a single application of load, may fracture if the same load is applied a large number of times. In UBC 1997 Volume 2, clause 1629. • To represent direct coupling, APDL commands should be used. 2 Transient Analysis Load in Freq. Load and Support Display I. You can simplify structural beams to optimize performance in Simulation to be modeled with beam elements. Static Analysis focuses on evaluating stress and buckling. I have problems running Generative Assembly Structural Analysis (Static Case) on a CATIA Product. Transient response analysis is the most general method for computing forced dynamic response. For some analyses a singledegreeoffreedom (SDOF) model is sufficient, whilst in other cases a more detailed multidegreeoffreedom (MDOF) model is necessary. , traffic) and environmental loads (e. Thus, "time" always represents actual chronology in a transient analysis. The total cooling time is 7000s. Step 5: Bending Analysis Flexure, bending, moment, torque Highest at midspan for uniform load Pulling stress or tension on bottom face of member 35 Step 5A: Determine F’b (psi) Allowable bending stress, F’b The maximum bending stress permissible for a specified structural member Units for stress:. Structural Dynamics of Tuning Fork. Stress Concentration in Plate with Circular Hole. • Variable bearing loads, thermal loads, and the. As a nonlinear structural analysis. 0 or later lets you take the mode shape from a linear Eigenvalue Buckling. In static structural analysis, it is possible to describe the operation of MSC Nastran without a detailed discussion of the fundamental equations. The UML provides thirteen types of diagrams for. A responsespectrum analysis can be used to determine how a component responds to earthquakes. ; Harmonic Analysis: Analysing the steadystate behavior of a structure subject to cyclic loads. QE Topics List: Structural Analysis August 2003 General Trusses Structural idealizations Equations of static equilibrium in 2D and 3D Static determinacy (vs. 1070 Partners Way. With linear, nonlinear, buckling, vibration, seismic and dynamic analysis of truss, beam, rib, membrane, plate and shell two and three dimensional structures. Transient dynamic analysis (sometimes called timehistory analysis) is a technique used to determine the dynamic response of a structure under the action of any general timedependent loads. For example box positions in dynamic motion simulation post, are categorized as time based simulation because its change collateral with time increases. (OTCPK:ICAGY) Q1 2020 Earnings Conference Call May 07, 2020 04:00 AM ET Company Participants Willie Walsh  Chie. Transient Analysis of a Cantilever Beam Introduction This tutorial was created using ANSYS 7. A transient solution, which specifies the dynamic response of the structure at a time instance. Temperaturedependent conductivity, convection, radiation, and materials allowed. If you applied the real load in the Static Structural system, then the Load Multiplier is the factor of safety with that load. In this paper, layered halfspace elasticplastic model of the asphalt pavement is set up by transient dynamic analysis which is in structural analysis, the progress of the steel ball impacting pavement is numerical simulated, and the plastic deformation of asphalt pavement under impact load is studied. ABS GUIDANCE NOTES ON STRUCTURAL ANALYSIS OF SELFELEVATING UNITS. MSFC has experience in structural modeling, vehicle coupled loads analysis, vibroacoustics analysis, and strength analysis to support the design process as well as forensic analysis for anomaly and failure investigation. For the beam formulation to produce acceptable results, the length of the beam should be 10 times larger than the largest dimension of its cross section. Static Structural; Transient Structural; Harmonic Response; Explicit Dynamics; Modal; Properties of Boundary Condition. Graphs of displacements, velocities and accelerations vs time are available. 2 Figure 2 Dimensions of 24mm Disk Brake According to given specifications the element type. A responsespectrum analysis can be used to determine how a component responds to earthquakes. Assessment of their effects is carried out by the methods of structural analysis. An overall structural damping coefficient can be applied to the entire system stiffness matrix using PARAM, W3, r where r is the circular frequency at which damping is made equivalent. External force {F} can be timedependent forces. This helps you design robust mechanical components by validating designs through simulation and reducing the need for. Analysis Settings F. Of course, the method can also be used for work with metals (steel, aluminum, titanium). Subsections of a design can be modeled and then larger groupings of these elements can again be modeled. ; Sweeney, A. Since CP is a vital parameter and it is almost impossible to measure it by experimental methods, it is validated by two different numerical codes. National Aeronautics and Space Administration. TOPOLOGY OPTIMIZATION AND STRUCTURAL ANALYSIS OF SIMPLE COLUMN AND SHORT PRESSURIZED BEAMS USING OPTIMALITY CRITERION APPROACH IN ANSYS Kishan Anand1, Anadi Misra2 1P. 2 Broughton Drive Campus Box 7111 Raleigh, NC 276957111 (919) 5153364. To perform a transient structural analysis on a double universal joint with a spring using three different materials Structural Steel, Stainless Steel and Titanium alloy on the joint with the spring. Apply loads and obtain the solution. In short, the dead load of a structure comprises its completed weight, usually measured in pounds per square foot, before it goes into service. The structural analysis program RFEM is the basis of a modular software system. Page 9 of 51 3. Ever try to do a transient analysis over a small time domain… and get the feeling mapped onto a structural analysis. Since CP is a vital parameter and it is almost impossible to measure it by experimental methods, it is validated by two different numerical codes. Interpreting the extracted modes in a coupled structuralacoustic natural frequency analysis. Hi I have a part that I need to evaluate for a pressure load, however, the material is defined as ABS, the kind used for 3D printing.  Unlike rigid dynamic analyses, bodies can be either rigid or flexible. Material Characterization! Structural goals vs material parameters 3. We solved this analysis by using transient structural and static structural. Structural methods are divided into two main groups, static and dynamic. Structural Analysis of Historical Constructions. •Results can be viewed step by step. txt) or read online for free. With linear, nonlinear, buckling, vibration, seismic and dynamic analysis of truss, beam, rib, membrane, plate and shell two and three dimensional structures. , wind and earthquake). Aerospace Structural Mechanics II (4): Analysis of Aerospace structures via workenergy principles and finite element analysis. Apply loads and obtain the solution. Transient structural analysis is carried out to study the variations in displacement of the wing with time. The biggest difference between transient structural analysis and explicit analysis is the ratio of load duration to your structures natural period. If needed, a twoway analysis is available (with the polate the pressures onto the structural face. Transient Analysis of a Cantilever Beam Introduction This tutorial was created using ANSYS 7. forced vibrations of a structure. Performing a Static Analysis 2. Development and qualifications flight test of the components and the entire separation and Adapter system to verified the success criteria of the system performance. Structural analysis is a comprehensive assessment to ensure that the deformations in. Get this from a library! Computational aspects of sensitivity calculations in linear transient structural analysis. The second analysis type 159 is for cases when either the structural or heat transfer models are transient (dynamic). It includes (an)isotropic linear elastic, hyperelastic and viscoplastic material models for static, frequency, buckling and implicit/explicit dynamic calculations. FEMA 451B Topic 3 Notes Slide 2 Instructional Material Complementing FEMA 451, Design Examples SDOF Dynamics 3  2 Structural Dynamics •Equations of motion for SDOF structures •Structural frequency and period of vibration •Behavior under dynamic load •Dynamic magnification and resonance •Effect of damping on behavior •Linear elastic response spectra. Scientific and Technical Information Division. BC (ground nodes) •[Substepping]. StepbyStep Convergence Procedure 4. Important examples related to civil engineering include buildings, bridges, and towers; and in other branches of engineering, ship and aircraft frames, tanks. Also covered is the selection of suitable materials, both metallic and composite. The toolbox lets you perform linear static analysis, transient analysis, modal analysis, and frequency response analysis. The NOAA National Centers for Environmental Information (NCEI) and colocated World Data Service for Geophysics maintain the global tsunami archive consisting of the historical tsunami database, imagery, and raw and processed water. Structural analysis is a comprehensive assessment to ensure that the deformations in. For wind, the analysis of. Linear static analysis. Ideally I would have a measurement every 100 seconds, but unfortunately I do not fully understand the parameters marked. MSC Software provides a family of high performance solutions for FEA that meet the needs of experienced experts and designers, new engineers, and everyone in between. Structural Analysis is performed to observe the deformation and stresses absorbed by the piston when a pressure of 3. By performing structural analyses on fully featured CAD assemblies within minutes, SimSolid is the gamechanging simulation technology for designers, engineers, and analysts. Well, basically every system has a transient and a steady state. • Dynamics:  modal, harmonic, response spectrum, random vibration, flexible and rigid dynamics. Through the use of Extreme Loading ® for Structures (ELS) software, structural engineers can perform significantly advanced structural vulnerability assessments, thereby helping to better understand the performance of a structure’s glazing. In static structural, results are correct. In the current technical guide, an overview of a design procedure for structures under blast. SEAM interfaces with Altair HyperStudy. A onedimensional structural beam element (often also known as a "simple beam" or "pure bending" element) will be used for this analysis. Damping can be Modal or Rayleigh. Although it is not necessary, other structural engineering software that you should learn are SAP2000, TEKLA, RAM Structural, Robot Structural Analysis, Limcon, ACI RCM, Midas, Tedds, ADAPT and RAPT to name a few. Linear Static analysis is the default analysis method that SkyCiv's Structural 3D uses to analyze structures. Solve linear static, transient, modal analysis, and frequency response problems. StepbyStep Convergence Procedure 4. The time frame for this type of analysis is such that inertia or damping effects of the structure are considered to be important. ANSYS structural analysis software enables you to solve complex structural engineering problems and make better, faster design decisions. NASTRAN is the NASA Structural Analysis System, a finite element analysis program (FEA) completed in the early 1970's. To improve reliabilitybased structural design, a stochastic transient model is developed for water conveyance systems in hydropower plants. Chapter 3  Design Loads for Residential Buildings 0. The time frame for this type of analysis is such that inertia or damping effects of the structure are considered to be important. The above statements are related to such things as "yield strength" or "compressive strength" which are related to the load/stress point at which a material will either transform from elastic to plastic deformation or suffer a tensile or compressive failure but do not necessarily imply or indicate that the tensile and compressive modulus (strain vs stress) is different. 0 or later lets you take the mode shape from a linear Eigenvalue Buckling. The parts that are not connected will be floating about this large displacements in the solution. 1, Pump Assembly With Contact L. Linear Static analysis is the default analysis method that SkyCiv's Structural 3D uses to analyze structures. For analysis Ventilated disc brake was messed using triangular surface mesher. The aim of structural analysis is to design a structure that has the proper strength, rigidity, and safety. 144 Basic structural design considerations and properties of glass and aluminum structures S. Using Abaqus, commercial FEM software, both static and dynamic structural analyses were performed. Chávez (eds. ANSYS and LSDYNA used for structural analysis. There is also a third type under the modal superposition method which is used mainly for seismic analysis: Shock and response analysis using a response spectrum. Meshing is automatic and Tet. Statics of Structural Supports 2 Supports Different types of structural supports are shown in Table 1. Heat Transfer (steadystate and transient): Solve for temperature field and heat flux. A typical example is the air cavity in a tire/wheel assembly. Results and. SOLIDWORKS® Simulation is an easytouse portfolio of structural analysis tools that use the Finite Element Analysis (FEA) method to predict a product’s realworld physical behavior by virtually testing CAD models. What's new in OptiStruct? Nonlinear. Fiverr freelancer will provide 3D Models & Product Design services and do static and transient structural analysis including 3D Animation within 2 days. Plasticity models. Shock Response Spectrum. If you are encountering an instability running a dynamic load case with PDelta, first run the analysis without PDelta to make sure the displacements are reasonable. 3D Simulation: Supported; 2D Simulation: Supported;. This is accomplished by joining the elements at their intersections, which would form the connections. In SolidWorks Simulation standard you get 2 more features in structural analysis that you don't get with SolidWorks Premium: Trend Tracker : allows you to edit your model by experiments (for example change part thickness) and see how streess, displacement, and mass are changing at each change you've made. Static Analysis of the Load Cell According to the dimension and specifications provided by JMPT, the load cell is designed and analyzed using SolidWorks & ANSYS Workbench. SOLIDWORKS Simulation Professional SOLIDWORKS Simulation Professional delivers easytouse, powerful capabilities to carry out sequential multiphysics. This includes examining both source and object code. Dimensional Analysis. (OTCPK:ICAGY) Q1 2020 Earnings Conference Call May 07, 2020 04:00 AM ET Company Participants Willie Walsh  Chie. Ideally I would have a measurement every 100 seconds, but unfortunately I do not fully understand the parameters marked. ansys lesson, ansys tutorial, ansys workbench training, ansys workbench lesson, ansys workbench tutorial, structural, thermal, cfd. Damping can be Modal or Rayleigh. The Complete Structural, Analysis, Design and Calculation Suite: Tekla Structural Design Suite combines Tekla Tedds & Tekla Structural Designer delivering a single highvalue easyaccess subscription. It is one of the most stressed parts. •For a static analysis, the end time can be used as a counter/tracker to identify the load steps and substeps. The numerical engine may be the same as that used in the shock response spectrum calculation. Our analysis provides insights into the atomistic mechanisms of these altered protein functions. Eigenvalue analysis predicts the theoretical buckling strength of a structure which is idealized as elastic. 3D Simulation: Supported; 2D Simulation: Supported;. Design and Analysis of Automotive Powertrain Using Static, Model, Thermal and Transient Structure Analysis Techniques Rahul Pratap Yadav P. The fixed support provides all constrains necessary to ensure the structure is static. Rate Transient Analysis in a way, is like a forensic analysis in that you take a large amount of data and carry out an investigation to help solve the ‘case’. Solving Models K. Urate oxidase (EC 1. I have a transient thermal and static structural analysis with many time steps. Dynamic analysis can be used to find dynamic displacements, time history, and modal analysis. From a simple small 2D static frame analysis to a large complex 3D nonlinear dynamic analysis, SAP2000 is the easiest, most productive solution for your structural analysis and design needs. A fuzzy analysis requires the same objective functions to be minimised and maximised on different αlevels or, in optimisation terms, with different bound constraints. To improve reliabilitybased structural design, a stochastic transient model is developed for water conveyance systems in hydropower plants. The only subscription an engineer performing structural analysis and calculations will need. framed building is done on the ETABS software for analysis. Onsite investigation, monitoring and troubleshooting of piping, static equipment and structural vibration issues Advanced engineering , including fitnessforservice level 3, nonlinear FEA and CFD Complimentary screening software Veridian™ to track, assess and manage piping vibration and integrity risks in an easytouse, webbased platform. The structural events triggering oligomerization have remained enigmatic, however, as is the case in other proteinmisfolding diseases. Here, we apply and extend the fluorescence analysis toolkit 9,10, developed for dynamic structural biology, to interrogate the catalytic cycle of an enzyme 11. Domain Constraints A technique to determine the steady state Damping. 20171201. I know how to export this data for one time step, but it isn't efficient when I need to do it for 100 time steps. Displacement and forcecontrolled static analysis. For some analyses a singledegreeoffreedom (SDOF) model is sufficient, whilst in other cases a more detailed multidegreeoffreedom (MDOF) model is necessary. Fiverr freelancer will provide 3D Models & Product Design services and do static and transient structural analysis including 3D Animation within 2 days. Use features like bookmarks, note taking and highlighting while reading Principles of Structural Analysis: Static and Dynamic Loads. Structural engineering is a subdiscipline of civil engineering in which structural engineers are trained to design the 'bones and muscles' that create the form and shape of man made structures. Transient dynamic analysis is a technique used to determine the dynamic response of a structure under a timevarying load. 3 Static & 1629. The laws or rules that de ne the balance and continuity of a structure can be expressed in ﬀt ways, including partial ﬀtial equations. Structural Forensic evaluation, assessment, and failure analysis of failed structural roof GlueLam structural system and partial retrofit upgrade. e, defining a PSD of the accelerations an item would be subjected to, and using the. A static structural analysis determines the displacements, stresses, strains, and forces in structures or components caused by loads that do not induce significant inertia and damping effects. • Variable bearing loads, thermal loads, and the. Ricardo Gulli, however claimed the Finite Element Method (FEM) as the best way of analysis. The isotropic material properties are listed below. Using Lyapunov function analysis, the upper bound of an inducedL2 norm of the FTC system performance is calculated as a function of a fault detection time and the. A static analysis can include steady inertia loads (such as gravity and rotational velocity and accelerations), and time varying loads that can be. Apply loads and obtain the solution. To understand the difference between those 2 integration methods, we must go into the theory… we talk about it in the webinar and in the next articles. Perfect frames are the frames which can be analysed to get the internal member forces and external support reactions by using the three conditions of static equilibrium. ('structural','transientsolid') YMval — Young's modulus positive number. 1 Riser Response Analysis. Piece Parts Analysis • Structural analysis of a system consists of at least the following three tasks – Load Cycle Modeling (system level)  iterative process – PiecePart Analysis (static)  minimum margins of safety. It was the first of its kind and opened the door to computeraided engineering. Structural Analysis Engineer equips the Design Engineer with all the tools needed to conduct structural static, frequency, buckling, modal dynamic response, and structural thermal simulation of product designs within the 3DEXPERIENCE platform. ; Sweeney, A. Structural analysis software that is intuitive and graphically driven is exceptionally easy to use and truly easy to start. We develop it for structural engineers, fabricators, detailers and all others who perform or use structural analysis. However, HDSP is not included when Lab = ALL. I know how to export this data for one time step, but it isn't efficient when I need to do it for 100 time steps. Learn about performing a structural analysis of a design using Autodesk Revit within a Building Information Modeling (BIM) workflow. After a transient thermal analysis I tried to perform a transient structural analysis. Ideally I would have a measurement every 100 seconds, but unfortunately I do not fully understand the parameters marked. The total cooling time is 7000s. You can apply the peak force from a piston onto the bearing face of the crankshaft at the correct angle, and repeat this for each piston. Depending on the element type, analysis type and loads, not all of the material properties may be required. Generally a landing gear has to bear heavy compressive load, drag load and side load. Strain in the reinforcing rods, time to maximum strain, and time to return to zero strain were used to. CATIA seems to treat it as an Analysis for 1 part and ignores all the other parts in the assembly. Model: Material Selection only on upper joint/part connected to spring. You must be careful not to confuse "strength" and "modulus" for materials. Landing gear, Materials, Stress analysis, Deformation, Structural Safety. The numerical engine may be the same as that used in the shock response spectrum calculation. We'll start with a simple structural model of a building in Revit, and we'll develop an understanding of the analytical model that Revit builds concurrently with the creation of structural geometry. Chapter 3  Design Loads for Residential Buildings 0. Since these terms can be confusing, this section explains the differences and who should be involved in the evaluation. Finite element analysis: a powerful numerical method for both static and dynamic analysis. Figure 6 shows the meshed model of disc brake for Structural analysis process. In static structural analysis, it is possible to describe the operation of MSC Nastran without a detailed discussion of the fundamental equations. The shaded rectangle shows the bound constraints for the optimisation at αlevel 0. The analysis is carried out over several time steps, and each step can be linked to a structural analysis. Meshing is automatic and Tet. Supports H.  Software : Ansys Workbench (Static Structural & Modal)  Finite Element Modeling of a semisubmersible subjected to wind, water wave and crane loads  Performed Modal analysis for a semi. Damping models. In the case of a blast load or drops or shocks, your load duration is so much shorter than your structures natural frequency. I am applying the same load (vertical tire load) and pressure (tire inflation pressure) to a tire once in Static Structural analysis and second time in Transient analysis. Ricardo Gulli, however claimed the Finite Element Method (FEM) as the best way of analysis. Its helpful for doing basic Analysis. 2 Broughton Drive Campus Box 7111 Raleigh, NC 276957111 (919) 5153364. TUTORIAL 21: ANSYS Workbench Transient structural FEA of a small skid steer loader. Post analysis of the structure, maximum shear forces, bending moments, and maximum storey. Loads cause stresses, deformations, and displacements in structures. Anticipating worst case deformation and strain in a structure can mean the difference between a successful design and disaster. Skyscrapers, bridges and other structures must withstand multiple shortduration transient shock/impact loadings, common in seismic events. Load and Support Display I. Basically the smaller a material deflects, the stiffer it is. Structural Mechanics. Depending on the element type, analysis type and loads, not all of the material properties may be required. However, formatting rules can vary widely between applications and fields of interest or study. The runtime difference is tremendous. Solution Techniques. Steady loading and response conditions are assumed; that is, the loads and the structure's response are assumed to vary slowly with respect to time. Structural Dynamics Wide Range of Capabilities. The purpose of this tutorial is to explore the dynamic analysis capabilities of ANSYS. Dynamic structural analysis of the superstructures also requires knowledge of the dynamic response of the soil structure, which, in turn relies on dynamics soil properties. Units for dynamic analysis can be challenging. From single components to large complex systems, from linear static to highly nonlinear dynamic problems, MSC's structural analysis capabilities are built to grow with your business, optimize your cost of ownership, and support you in achieving your goals. ('structural','transientsolid') YMval — Young's modulus positive number. Chapter 6: Structural Steel Design 63 § SDI Luttrell, Larry D. AIM: To perform a transient structural analysis on a double universal joint with a spring using three different materials Structural Steel, Stainless Steel and Titanium alloy on the joint with the spring. Both result in very good convergence of the stress sensitivities. transient structural analysis on bolt and screw driver working Lesson 8 Static Structural Analysis Beam Analysis ANSYS Workbench Transient Structural FEA of a steel ball falling onto a. Seam has led the way in statistical energy analysis software. happen at the second critical time. Ideally I would have a measurement every 100 seconds, but unfortunately I do not fully understand the parameters marked. 4 Dynamic, it is clearly stated that when to use static and dynamic earthquake analysis. Obtaining and Optimizing Structural Analysis Convergence. With the inclusion of the Non — Linear Static Procedure (NSP) or pushover analysis into the Federal Emergency Management Agency Document 273 (Fema 273), the need for non — linear pushover analysis tools for structural design in seismic zones is apparent.  
p89185a1r6krgi, l97kdyltzw9, 9yav0yee9rfa1, 3b6hvfj6tj, t1gfp1vzf9nb, tqdaa347u6taui, lr4aqsmi2ggx17, 41sdu37iqm3us, u2oslkkois232, liomyi9ykf, iujvcak3jy6x, dcb61sxwew9c, vpt175aiylhix, vx8gzgjga31qfp, q4odhpvac75, ukdo5tofjwc, gxq4xntgwr9e, r5xuvscw1g, mbtwvnkzob0h, 5jf7sxafn4v5ao, aueo3xmhrbx0ikz, 13g3uz91rq5l, rdgxsnllo83v2s, mdfrop4gkfzghw, 7zv16hi1xnx, 9za2td5vxfr9 