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Chassis_gs.pdf
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About This Guide This guide introduces you to basic concepts and tasks you canperform using ADAMS/Chassis, part of the MSC.ADAMS®
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- K% J- ^* B: Y; Q# e- n Introducing ADAMS/Chassis, 3 Working with Half-Suspension Models, 13 Analyzing the Effect of Design Changes, 25 Working with Full-Vehicle Models, 37 Working with Leaf Springs, 47 Integrating Control Systems in Your Model, 69
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Getting Started Using ADAMS/Chassis Copyright The information in this document is furnished for informational use only, may be revised from time to time, and should not be construed as a commitment by MSC.Software Corporation. MSC.Software Corporation assumes no responsibility or liability for any errors or inaccuracies that may appear in this document. Copyright Information This document contains proprietary and copyrighted information. MSC.Software Corporation permits licensees of MSC.ADAMS_ software products to print out or copy this document or portions thereof solely for internal use in connection with the licensed software. No part of this document may be copied for any other purpose or distributed or translated into any other language without the prior written permission of MSC.Software Corporation. Copyright © 2005 MSC.Software Corporation. All rights reserved. Printed in the United States of America. . C; J5 Y2 _- E. J7 ]/ g
2 M( G: F7 I1 E- k0 E Trademarks
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ADAMS, EASY5, MSC, MSC., MSC.ADAMS, MSC.EASY5, and all product names in the MSC.ADAMS Product Line are trademarks or registered trademarks of MSC.Software Corporation and/or its subsidiaries. NASTRAN is a registered trademark of the National Aeronautics Space Administration. MSC.Nastran is an enhanced proprietary version developed and maintained by MSC.Software Corporation. All other trademarks are the property of their respective owners. 5 G* d+ ?. g3 X
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7 L' c+ f4 d5 l. Q" ^ Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in FAR 12.212 (Commercial Computer Software) and DFARS 227.7202 (Commercial Computer Software and Commercial Computer Software Documentation), as applicable. / J4 v, d, d+ P/ Q! U% H
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1 Introducing ADAMS/Chassis; n. e4 z X2 I! i! M
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Overview This chapter contains the basics of the ADAMS/Chassis analysis environment and introduces the tutorials found in later chapters: About ADAMS/Chassis, 4 What You Will Learn, 5 Starting ADAMS/Chassis, 6 Familiarizing Yourself with ADAMS/Chassis, 8 Getting Started Using ADAMS/Chassis Introducing ADAMS/Chassis About ADAMS/Chassis ADAMS/Chassis provides a complete analysis environment for automotive MSC.ADAMS analysis. It does this by providing standard model types, two analysis types, and post-processing. You run ADAMS/Chassis in conjunction with ADAMS/Solver and ADAMS/PostProcessor. ADAMS/Chassis comes with many standard suspensions such as: Short-long arm MacPherson Hotchkiss 4 Link Quadralink Using ADAMS/Chassis, you can perform the following types of analyses, also referred to as events: ■ Half-vehicle analyses - During half-vehicle analyses you examine the behavior of suspensions. Half-vehicle analyses include: ❖Ride motion ❖Roll motion ❖ Steering
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Full-vehicle analyses - During full-vehicle analyses you examine the behavior of complete vehicles. Full-vehicle analyses include: ❖Step steer ❖Frequency response ❖Oncenter handling❖Constant radius Getting Started Using ADAMS/Chassis Introducing ADAMS/Chassis The majority of these standard events come with standard postprocessing; that is, plots or reports or both. ADAMS/Chassis also helps you with the virtual prototyping process by: ... Substituting rigid bodies with flexible bodies through ADAMS/ChassisMakeflex and ADAMS/Flex. Modeling complex leaf spring interactions with ADAMS/Chassis Makeleaf. Using ADAMS/Driver to learn how to best drive a course. What You Will Learn This guide contains five tutorials that step you thro UGh the traditional iterative analysis process, which is one of the many ways you can solve complex system problems using ADAMS/Chassis. The first three tutorials build on each other and assume that you work through them in sequence. The last two tutorials in the final chapter are independent of the other tutorials. However, they still assume that you have learned the ADAMS/Chassis interface by running through the other tutorials. In the tutorials, you will perform the following tasks: Build half-suspension, full-vehicle models, and leaf-spring models. Analyze models in different virtual tests. Review analyses using animation, plotting, and reports. Modify models and review the effects of your design changes. Iterate your design to achieve performance targets for your model. Getting Started Using ADAMS/Chassis Introducing ADAMS/Chassis Starting ADAMS/Chassis In this section you learn how to start ADAMS/Chassis in the UNIX and the Windows environment. You must run ADAMS/Chassis in a directory to which you have write permissions. The example models in the installation are always write protected. You must use Database Utilities to copy the example model from the installation directory to your working directory. Database utilities automatically changes the permission for you so that the files can be overwritten. To start ADAMS/Chassis in the UNIX environment: 1At the command prompt, enter the command to start the MSC.ADAMS Toolbar,and then select Enter. The standard command that MSC.Software provides isadamsx, where x is the version number, for example adams05r2. The MSC.ADAMS Toolbar appears. 2Select the ADAMS/Chassis tool 3Select OK.The ADAMS/Chassis main window appears as shown in Figure 1 on page 7. To start ADAMS/Chassis in the Windows environment: 1From the Start menu, point to Programs, point to MSC.Software, point toMSC.ADAMS 2005r2, point to AChassis, and then select ADAMS - Chassis. 2Select OK.The ADAMS/Chassis window appears as shown in Figure 1 on page 7. Getting Started Using ADAMS/Chassis Introducing ADAMS/Chassis Figure 1. ADAMS/Chassis Build Mode$ m# Z& J7 l* A. \& o' z
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Treeview Property Editor Getting Started Using ADAMS/Chassis Introducing ADAMS/Chassis Familiarizing Yourself with ADAMS/Chassis Here you will learn about the ADAMS/Chassis work modes and toolbars. ADAMS/Chassis Work Modes ADAMS/Chassis is divided into four work modes: Build Test Review Improve Build The Build mode allows you to edit model data and change system configuration. You can also work on multiple models at once. The Build mode is the default for starting ADAMS/Chassis. Test The Test mode allows you to build and run your model. Review The Review mode allows you to visualize analysis results using ADAMS/PostProcessor. You can postprocess the output of standard ADAMS/Chassis events. Postprocessing has two formats: reports and plots. A majory of standard ADAMS/Chassis events have either a report, a plot, or both. You can also create an animation of your event. Improve The Improve mode allows you to refine models with ADAMS/Insight. Here you can use the features from ADAMS/Insight to create sophisticated experiments for measuring the performance of your model. It also provides a collection of statistical tools for analyzing the results of your experiments so that you can better understand how to refine and improve your model. Getting Started Using ADAMS/Chassis Introducing ADAMS/Chassis Learning About the Toolbars The toolbars in ADAMS/Chassis change according to the work mode. Below is the basic toolbar that is available in all work modes. Figure 2. ADAMS/Chassis Basic Toolbar ! f/ Q1 l |! C
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