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MSC.ADAMS Functions COSMOSMotion User’s Guide COPYRIGHT NOTICE Copyright © 20023by Structural Research and Analysis Corp, All rights reserved. Portions Copyright © 1997-2003 by MSC.Software Corporation. All rights reserved. U. S. Government Restricted Rights: If the Software and Documentation are provided in connection with a government contract, then they are provided with RESTRICTED RIGHTS. Use, duplication or disclosure is subject to restrictions stated in paragraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at 252.227-7013. MSC.Software. 2 MacArthur Place, Santa Ana, CA 92707. Information in this document is subject to change without notice. This document contains proprietary and copyrighted information and may not be copied, reproduced, translated, or reduced to any electronic medium without prior consent, in writing, from MSC.Software Corporation. REVISION HISTORY First Printing December 2001 Second Printing September 2002 Third Printing August 2003 TRADEMARKS MSC.ADAMS is a registered United States trademark and MSC.ADAMS/Solver, MSC.ADAMS/Kinematics, MSC.ADAMS/View, and COSMOSMotion are trademarks of MSC.Software. SolidWorks, FeatureManager, SolidBasic, and RapidDraft are trademarks of SolidWorks Corporation. Windows is a registered trademark of MicroSoft Corporation. All other brands and product names are the trademarks of their respective holders. Table of Contents Table of Contents...........................................................................................................................i 1 COSMOSMotion............................................................................................................ 1 Why are Mechanisms Important? ................................................................................................ 1 Benefits of Using COSMOSMotion .............................................................................................. 2 Product Structure ......................................................................................................................... 2 User Interface .............................................................................................................................. 3 Steps in Defining and Simulating a Mechanism ........................................................................... 6 2 Creating Mechanisms ................................................................................................ 11 Modeling Procedure................................................................................................................... 11 Automatically Create Parts and Joints ....................................................................................... 12 Motion Parts............................................................................................................................... 14 Rigidly Attached Parts................................................................................................................ 16 Constraints................................................................................................................................. 17 Revolute Joint ............................................................................................................................ 19 Translational Joint...................................................................................................................... 20 Cylindrical Joint.......................................................................................................................... 21 Spherical Joint ........................................................................................................................... 22 Universal Joint ........................................................................................................................... 23 Screw Joint ................................................................................................................................ 24 Planar Joint ................................................................................................................................ 25 Fixed Joint.................................................................................................................................. 26 Joint Friction............................................................................................................................... 27 Understanding Joint Primitives................................................................................................... 35 Inline JPrim ................................................................................................................................ 36 Inplane JPrim ............................................................................................................................. 37 Orientation JPrim ....................................................................................................................... 38 Parallel Axes JPrim.................................................................................................................... 39 Perpendicular JPrim................................................................................................................... 40 Understanding Motions .............................................................................................................. 41 Motion Expression...................................................................................................................... 42 Creating Joints, Joint Primitives, and Motions............................................................................ 48 Understanding Contact Constraints ........................................................................................... 55 Creating Contact Constraints ..................................................................................................... 60 Creating 3D Contacts................................................................................................................. 69 Joint Couplers ............................................................................................................................ 73 Motion on Parts.......................................................................................................................... 75 Rigid Bodies............................................................................................................................... 78 Forces ........................................................................................................................................ 81 Creating Applied Forces............................................................................................................. 87 Creating Bushings...................................................................................................................... 93 Creating Springs and Dampers.................................................................................................. 95 Creating Impact Forces............................................................................................................ 103 Table of Contents i Gravity ......................................................................................................................................107 Manipulating Mechanism Entities..............................................................................................108 3 Materials .................................................................................................................... 109 Adding Materials .......................................................................................................................110 Editing Materials .......................................................................................................................114 4 Mechanism Solution................................................................................................. 117 Simulation Panel.......................................................................................................................117 Simulating .................................................................................................................................125 Simulation Troubleshooting ......................................................................................................125 5 Reviewing Your Results........................................................................................... 127 Animating The Mechanism .......................................................................................................127 Exporting an AVI movie ............................................................................................................131 Exporting Animations to VRML .................................................................................................133 Exporting Results to Excel ........................................................................................................134 Exporting Results to a Text File ................................................................................................138 Interference Detection...............................................................................................................139 Exporting to FEA.......................................................................................................................141 Creating Trace Paths ................................................................................................................144
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