Autodesk 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite 2010 Getting Started Manual
  1. Manuals
  2. Brands
  3. Autodesk Manuals
  4. Software
  5. 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite...
  6. Getting started manual
Autodesk 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite 2010 Getting Started Manual

Autodesk 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite 2010 Getting Started Manual

Getting started guide
Hide thumbs Also See for 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite 2010:
Table of Contents

Advertisement

Quick Links

Download this manual
Autodesk Inventor Simulation 2010

Getting Started

Part No. 466B1-050000-PM01A
January 2009

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite 2010 and is the answer not in the manual?

Questions and answers

Related Manuals for Autodesk 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite 2010

Summary of Contents for Autodesk 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite 2010

  • Page 1: Getting Started

    Autodesk Inventor Simulation 2010 Getting Started Part No. 466B1-050000-PM01A January 2009...
  • Page 2 © 2009 Autodesk, Inc. All Rights Reserved. Except as otherwise permitted by Autodesk, Inc., this publication, or parts thereof, may not be reproduced in any form, by any method, for any purpose. Certain materials included in this publication are reprinted with the permission of the copyright holder.

  • Page 3: Table Of Contents

    ....3 About Autodesk Inventor Simulation ....3 Learn Autodesk Inventor Simulation .
  • Page 4 ....43 About Autodesk Inventor Simulation ....43 Learning Autodesk Inventor Simulation .
  • Page 5 Simulation Assumptions ......45 Interpret Simulation Results ..... . . 45 Relative Parameters .

  • Page 7: Stress Analysis

    Stress Analysis Part 1 of this manual presents the getting started information for Stress Analysis in the Autodesk ® Inventor Simulation software. This add-on to the Autodesk Inventor assembly, part, and sheet metal environments provides the capability to analyze the static stress and natural...

  • Page 9: Get Started With Stress Analysis

    Autodesk Inventor for completing complex machinery and other product designs. Stress Analysis in Autodesk Inventor Simulation is an add-on to the Autodesk Inventor assembly, part, and sheet metal environments. Static Analysis provides the means to simulate stress, strain, and deformation.

  • Page 10: Learn Autodesk Inventor Simulation

    Learn Autodesk Inventor Simulation We assume that you have a working knowledge of the Autodesk Inventor Simulation interface and tools. If you do not, use Help for access to online documentation and tutorials, and complete the exercises in the Autodesk Inventor Simulation Getting Started manual.

  • Page 11: Use Stress Analysis Tools

    Autodesk Inventor Simulation Stress Analysis provides tools to determine structural design performance directly on your Autodesk Inventor Simulation model. Autodesk Inventor Simulation Stress Analysis includes tools to place loads and constraints on a part or assembly and calculate the resulting stress, deformation, safety factor, and resonant frequency modes.

  • Page 12: Understand The Value Of Stress Analysis

    Understand the Value of Stress Analysis Performing an analysis of a mechanical part or assembly in the design phase can help you bring a better product to market in less time. Autodesk Inventor Simulation Stress Analysis helps you: Determine if the part or assembly is strong enough to withstand expected loads or vibrations without breaking or deforming inappropriately.

  • Page 13: Understand How Stress Analysis Works

    You can experiment on a wider variety of design options and improve the end product. To learn more about the capabilities of Autodesk Inventor Simulation Stress Analysis, view the online demonstrations and tutorials.
  • Page 14 The stress analysis provided by Autodesk Inventor Simulation is appropriate only for linear material properties where the stress is directly proportional to the strain in the material (meaning no permanent yielding of the material). Linear behavior results when the slope of the material stress-strain curve in the elastic region (measured as the Modulus of Elasticity) is constant.

  • Page 15: Interpret Results Of Stress Analysis

    Interpret Results of Stress Analysis The output of a mathematical solver is generally a substantial quantity of raw data. This quantity of raw data would normally be difficult and tedious to interpret without the data sorting and graphical representation traditionally referred to as post-processing.

  • Page 16: Maximum And Minimum Principal Stresses

    by an uniaxial stress test, then the real stress system is related by combining the six stress components to a single equivalent stress. Maximum and Minimum Principal Stresses According to elasticity theory, an infinitesimal volume of material at an arbitrary point on or inside the solid body can be rotated such that only normal stresses remain and all shear stresses are zero.

  • Page 17: Frequency Modes

    Autodesk Inventor Simulation Stress Analysis. Always, use engineering principles to evaluate the situation. Frequency Modes Use modal frequency analysis to test a model for its natural resonant frequencies (for example, a rattling muffler during idle conditions, or other failures).

  • Page 19: Analyze Models

    Analyze Models After you define your model, you use the stress analysis environment to prepare the model for analysis. You define the materials, loads, and constraints for the condition you want to test, and establish contact conditions and mesh preferences. Then, you perform an analysis, also called simulation, of the model.

  • Page 20: Enter Environment And Create A Simulation

    8 Run the simulation. 9 View and Interpret the Results When you make modifications to the model or various inputs for the simulation, it can be necessary to update the mesh or other analysis parameters. A red lightning bolt icon next to the browser node indicates areas that need an update.

  • Page 21: Exclude Components

    5 Click OK. The new simulation populates the browser with analysis nodes. Exclude Components In assemblies, some components have no bearing on the simulation. You can exclude the components. Right-click the component node and click Exclude from simulation. Exclusion in a simulation has no effect on the assembly in the modeling environment.

  • Page 22: Specify Material

    Specify Material The stress analysis environment provides the means to override materials for any component. The default material provided in Inventor templates is not completely defined for simulation purposes. When modeling your components, use materials that are appropriate and completely defined, particularly if you are going to use simulation.
  • Page 23 Constraint Constraint-Specific Information Frictionless Apply a frictionless constraint to a flat or cylindrical surface in Constraint the part. Frictionless constraints prevent the surface from moving or deforming in the normal direction relative to the surface. To add a constraint: 1 Click the constraint command corresponding with the type of constraint you want to assign.

  • Page 24: Add Loads

    Add Loads To simulate conditions your design can encounter, you add force loads to areas where such forces can be encountered. There are a variety of load types to use. The following list explains the available load types. Load Load-Specific Information Force Apply a force to a set of faces, edges, or vertices.

  • Page 25: Add Contact Conditions

    Load Load-Specific Information Gravity Specifies the direction of gravitational load on the model. Se- lect a face to define the direction or use Vector Components to precisely control the direction. Cylindrical selections provide an axial direction. To add a load, you must: 1 Click the load command corresponding to the load type you want to add.

  • Page 26: Generate A Mesh

    2 Specify the contact type. 3 Select the appropriate entities for the contact type. If other components are obscuring the component you want to select use Part selection option to select the part first, then refine your selection thereafter. Generate a Mesh You can accept the default mesh settings and proceed right to the simulation.

  • Page 27: Run Modal Analysis

    When ready, click Run to start the simulation calculations. Run Modal Analysis In addition to the stress analysis, you can perform a modal frequency analysis to find the natural frequencies at which your part vibrates, and the mode shapes at those frequencies. Like stress analysis, modal analysis is available in the stress analysis environment.

  • Page 29: Chapter 3 View Results

    View Results After you analyze your model under the stress analysis conditions that you defined, you can visually observe the results of the solution. This chapter describes how to interpret the visual results of your stress analyses. Use Results Visualization When the simulation completes its computations, the graphics region updates to show: 3D Volume plot and result type.
  • Page 30 The various results sets are seen by expanding the Result node to reveal the child nodes. For example, when you run a static analysis, child result nodes for Von Mises Stress, 1st principal stress, Displacement, Safety Factor, and so on populate the browser. To view the different results sets, double-click the browser node.

  • Page 31: Edit The Color Bar

    Probe for values at specific points. Edit the Color Bar The color bar shows you how the contour colors correspond to the stress values or displacements calculated in the solution. You can edit the color bar to set up the color contours so that the stress/displacement is displayed in a way that is meaningful to you.

  • Page 32: Read Stress Analysis Results

    5 By default, the color bar is positioned in the upper-left corner. Select an appropriate option under Position to place the color bar at a different location. 6 For Size, select an appropriate option to resize the color bar, and then click OK.

  • Page 33: Animate Results

    3rd Principal Stress The 3rd principal stress acts normal to the plane in which shear stress is zero. It helps you understand the maximum compressive stress induced in the part due to the loading conditions. Displacement The Displacement results show you the deformed shape of your model after the solution.

  • Page 34: Set Results Display Options

    Set Results Display Options While viewing your results, you can use the following commands located on the Result and Display panels to modify the features of the results display for your model. Command Used to Same Scale Maintains the same scale while viewing different results.
  • Page 35 Command Used to Probe Activates the Probe command. You place probes as needed in areas of interest to display the stress values for that point. Display Probe La- Toggles the visibility of probe labels. bels Displacement Scale Displays a preset list of displacement exaggeration scales.

  • Page 37: Chapter 4 Revise Models And Stress Analyses

    Revise Models and Stress Analyses After you run a simulation for your model, you can evaluate how changes to the model or analysis conditions affect the results of the simulation. This chapter explains how to change simulation conditions for the model and rerun the simulation.

  • Page 38: Change Solution Conditions

    6 At the bottom of the window, click the assembly tab. Your component is updated. 7 Some portions of the simulation may now be out of date with reference to the change. You must update these in order to have current analysis data.
  • Page 39 2 Click the selection arrow on the left side of the dialog box to enable feature picking. You are initially limited to selecting the same type of feature (face, edge, or vertex) that is currently used for the load or constraint. To remove any of the current features, CTRL-click them.

  • Page 40: Update Results Of Stress Analysis

    Update Results of Stress Analysis After you change any of the simulation conditions, or if you edit the part geometry, the current results are invalid. A lightning bolt symbol next to the results node indicates the invalid status. The Update command is located in the node context menu and is enabled.

  • Page 41: Chapter 5 Generate Reports

    Generate Reports After you run an analysis on a part or assembly, you can generate a report that provides a record of the analysis environment and results. This chapter tells you how to generate and interpret a report for an analysis, and how to save and distribute the report.

  • Page 42: Interpret Reports

    Interpret Reports The report contains model information, project information, and simulation results. Model Information The Model information contains the model name, version of Inventor, and the creation date. Project Info The Project Info includes the following: Summary, which includes the Author property. Project properties, which includes part number, designer, cost, and date created.
  • Page 43 Advances settings This section contains: Average Element size Minimum element size Grading Factor Maximum Turn Angle Create Curved Mesh Elements setting value Ignore Small Geometry value Material(s) Material name General properties Stress properties Thermal properties Part names, if an assembly report Operating conditions Each force by type and magnitude, with images Each constraint by type with images.

  • Page 44: Save And Distribute Reports

    Save and Distribute Reports The report is generated as a set of files to view in a Web browser. It includes the main HTML page, style sheets, generated figures, and other files listed at the end of the report. Saved Reports By default reports are saved in the same location as the model being analyzed.

  • Page 45: Chapter 6 Manage Stress Analysis Files

    Create and Use Analysis Files After you set up any stress analysis information in Autodesk Inventor Simulation, saving the part or assembly also saves the stress analysis information in the model file. Stress Analysis input and results information, including loads, constraints, and all results are also saved in separate files.

  • Page 46: Resolve Missing Files

    Resolve Missing Files Under certain circumstances, simulation files can be relocated or missing when working with a model. When you first open a model file, the Resolve Link dialog box displays. You can browse to the location of the simulation files, or you can choose to skip them.

  • Page 47: Dynamic Simulation

    Dynamic Simulation Part 2 of this manual presents the getting started information for Dynamic Simulation in the ® Autodesk Inventor Simulation software. This application environment provides tools to predict dynamic performance and peak stresses before building prototypes.

  • Page 49: Chapter 7 Get Started With Simulation

    You can also export load conditions at any motion state to Stress Analysis in Autodesk Inventor Simulation to see how parts respond from a structural point of view to dynamic loads at any point in the range...

  • Page 50: Learning Autodesk Inventor Simulation

    Learning Autodesk Inventor Simulation We assume that you have a working knowledge of the Autodesk Inventor Simulation interface and tools. If you do not, use the integrated Help for access to online documentation and tutorials, and complete the exercises in this manual.

  • Page 51: Understand Simulation Tools

    Graphic generation tool for representing and post-processing the simulation output data. Simulation Assumptions The dynamic simulation tools provided in Autodesk Inventor Simulation are invaluable in the conception and development steps and in reducing the number of prototypes. However, due to the hypothesis used in the simulation, it provides only an approximation of the behavior seen in real-life mechanisms.

  • Page 52: Coherent Masses And Inertia

    Coherent Masses and Inertia Ensure that the mechanism is well-conditioned. For example, the mass and inertia of the mechanism should be in the same order of magnitude. The most common error is a bad definition of density or volume of the CAD parts. Continuity of Laws Numerical computing is sensitive toward incontinuities in imposed laws.

  • Page 53: Simulate Motion

    The most basic and important difference has to do with degrees of freedom. ® By default, components in Autodesk Inventor Simulation have zero degrees of freedom. Unconstrained and ungrounded components in the assembly environment have six degrees of freedom.

  • Page 54: Understand Constraints

    This eliminates extensive work on your part in creating joints. NOTE Autodesk Inventor Simulation Simulation converts constraints that have to do with degrees of freedom, such as Mate or Insert, but does not convert constraints that have to do with position, such as Angle.

  • Page 55: Convert Assembly Constraints

    Notice that the assembly moves just as it did in the assembly environment. It seems to contradict preceding explanations, however, the motion you see is borrowed from the assembly environment. Even though you are in Autodesk Inventor Simulation Simulation, you are not yet running a simulation. Since a simulation is not active, the assembly is free to move.
  • Page 56 Joints option, which automatically translates certain assembly constraints to standard joints. When you open an assembly created in Autodesk Inventor Simulation 2010, constraints are automatically converted to joints by default. NOTE In assemblies created prior to Autodesk Inventor Simulation 2008, Automatically Convert Constraint to Standard Joints is turned off by default.
  • Page 57 3 Right-click the Srf1 node and click Visibility. The Bevel Gear construction surface displays. We use this surface to help define the gear relationship. 4 At the right end of the ribbon panel, click Return. You are placed back in the simulation environment. 5 On the ribbon, click Dynamic Simulation tab Joint panel Insert...

  • Page 58: Run Simulations

    Run Simulations The Simulation Player contains several fields including: 1 Final Time 2 Images 3 Filter 4 Simulation Time 5 Percent of Realized Simulation 6 Real Time of Computation Simulation Panel Final Time field Controls the total time available for simulation. Images field Controls the number of image frames available for a simulation.
  • Page 59 TIP Click the Screen Refresh command to turn off screen refresh during the simulation. The simulation runs, but there is no graphic representation. Before you run the simulation, make the following adjustments. Set up a simulation 1 On the Simulation Player, in the Final Time field, enter 0.5 s. TIP Use the tooltips to see the names of the fields in the Simulation Player.

  • Page 61: Construct Moving Assemblies

    Construct Moving Assemblies To simulate the dynamic motion in an assembly, define mechanical joints between the parts. This chapter provides basic workflows for constructing joints. Retain Degrees of Freedom In some cases, it may be appropriate that certain parts move as a rigid body and a joint is not required.
  • Page 62 6 Select circular sketch (2) on the roller component. 7 Click Apply. As you can see, sketch geometry can be used to help define the simulation. 8 Drag the Follower until the roller contacts the cam. Notice it does not penetrate.

  • Page 63: Add Joints

    Add Joints The Follower is designed to slide through a portion of the Guide component. However, to hold the Follower Roller against the Cam, specify a spring between the Follower and Guide components. Dynamic Simulation has a joint for doing that and more, the Spring/Damper/Jack joint. 1 On the ribbon, click Dynamic Simulation tab Joint panel Insert...

  • Page 64: Impose Motion On Joints

    Expand the dialog box and set: Radius = 5.2 mm Turns = 10 Wire Radius = .800 mm 6 Click OK. The spring properties and graphical display update. Define gravity 7 In the browser, in the External Loads folder, right-click Gravity and click Define Gravity.

  • Page 65: Run Simulations

    3 Click Edit Joint Motion , and check Enable imposed motion. 4 Verify that Velocity is the selected Driving option. 5 In the input field, click the arrow to expand the input choices and click Constant Value. Specify 10,000 deg/s 6 Click OK.

  • Page 67: Construct Operating Conditions

    Construct Operating Conditions This chapter demonstrates how to complete the motion definitions so that the simulation reflects operating conditions. Complete the Assembly If the RecipSaw-saved.iam assembly is not open, you need to open the file to continue. As you can see, though we have the saw body, we do not have the blade components.
  • Page 68 4 In the browser, expand the Blade set assembly node to expose the components. 5 Select the Scottish Yoke component. On the Quick Access Toolbar, change the color to Chrome. NOTE If you receive a Design View Representation message about color associativity, select Remove associativity and click OK.

  • Page 69: Add Friction

    7 Add a second mate constraint between the two components to position the yoke within the guide rails. In the browser under Standard Joints, a prismatic joint was created based on adding those constraints. Add Friction Add friction and complete the yoke-guide relationship 1 In the browser, right-click Blade set.iam and click Flexible.

  • Page 70: Add A Sliding Joint

    3 Click the dof 1 tab. Click the joint forces command . Click Enable joint force. Enter a Dry Friction coefficient of 0.1 and click OK. 4 We need to add a constraint to position the Scottish Yoke with respect to the crank assembly.
  • Page 71 2 In the ribbon bar, click the Dynamic Simulation tab to display the simulation commands. Now we ll add the sliding joint. 3 In the Joint panel, click Insert Joint. In the pull down list, select Sliding: Cylinder Curve. For input 1 select the blade clamp slot profile on which the follower rides.

  • Page 73: Index

    Index Simulation Panel dynamic simulation analyses assumptions meshing coherent masses and inertia modal continuity of laws post processing relative parameters reports results rerunning on edited designs results, reading 23, 26 solving types, setting Element Visibility command updating equivalent stresses 10, 26 vibration exercises, prerequisites analysis (.ipa) files...
  • Page 74 results animate load symbols deformation displaying 28, 33 display options loads equivalent stresses browser display frequency options deleting, adding, and editing resonant frequency reviewing safety factor stress analysis, reading updating meshes viewing analyses creating rigid bodies, creating displaying Minimum command modal analyses 11, 21 model geometry, editing...
  • Page 75 vibration frequency analyses welded bodies von Mises stress workflows running modal analyses Index | 69...

Table of Contents