PTC Global Services MMeecchhaanniissmm DDeessiiggnn aanndd AAnnaallyyssiiss Release 2001 T-889-320-01 Copyright Mechanism Design and Analysis Copyright © 2001 Parametric Technology Corporation. All Rights Reserved. This Mechanism Design and Analysis Training Guide may not be copied, reproduced, disclosed, transferred, or reduced to any form, including electronic medium or machine-readable form, or transmitted or publicly performed by any means, electronic or otherwise, unless Parametric Technology Corporation (PTC) consents in writing in advance. User and training documentation from Parametric Technology Corporation (PTC) is subject to the copyright laws of the United States and other countries and is provided under a license agreement that restricts copying, disclosure, and use of such documentation. 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PRINTING HISTORY Document No. Date Description PU-889-320-01 05/16//01 Initial Printing of Pro/USER: Mechanism Design and Analysis for Release 2001 T-889-320-01 09/06//01 Initial Printing of Mechanism Design and Analysis for Release 2001 Order Number T-889-320-EN Printed in U.S.A Training Agenda Mechanism Design and Analysis Day One Module 1: Introduction to Mechanism Design Module 2: Creating and Analyzing Mechanisms Module 3: Configuring Joint Axis Settings Module 4: Defining Drivers and Motion Module 5: Working with Motion Analysis Results Module 6: Creating Cam and Slot Connections Module 7: Optimizing Mechanism Designs PTC Telephone and Fax Numbers The following is a list of telephone and fax numbers you may find useful: Education Services Registration in North America Tel: (888)-782-3773 Fax: (781) 370-5553 Technical Support (Monday - Friday) Tel: (800) 477-6435 (U.S.) (781) 370-5332 or (781) 370-5523 (outside U.S.) Fax: (781) 370-5650 License Management Tel: (800) 216-8945 (U.S.) (781) 370-5559 (outside U.S.) Fax: (781) 370-5795 Contracts Tel: (800) 791-9966 (U.S.) (781) 370-5700 (outside U.S.) In addition, you can find the PTC home page on the World Wide Web can be found at: http://www.ptc.com. The Web site contains the latest training schedules, registration information, directions to training facilities, and course descriptions, as well as information on PTC, the Pro/ENGINEER product line, Consulting Services, Customer Support, and Pro/PARTNERS. Table of Contents Mechanism Design and Analysis INTRODUCTION TO MECHANISM DESIGN 1-1 OVERVIEW.......................................................................................................................1-2 IMPLEMENTING MECHANISM DESIGN EXTENSION..............................................1-2 Mechanism Design without Cam and Slot Connections....................................................1-2 Mechanism Design with Cam and Slot Connections.........................................................1-4 MECHANISM DESIGN INTERFACE.............................................................................1-4 Using Mechanism Design Icons.........................................................................................1-4 Accessing the Object Sensitive Menu................................................................................1-5 CREATING AND ANALYZING MECHANISMS 2-1 CREATING MECHANISM ASSEMBLIES.....................................................................2-2 Comparing Connections to Constraints..............................................................................2-2 Selecting Connection Types...............................................................................................2-2 Calculating Mechanism Degrees of Freedom....................................................................2-7 Working with the Body......................................................................................................2-8 Redefining Assemblies as Mechanisms.............................................................................2-9 SIMULATING MOTION...................................................................................................2-9 Dragging Assembly Components....................................................................................2-10 Adding Controls when Dragging.....................................................................................2-11 Recording Configurations with Snapshots.......................................................................2-13 Other Commands.............................................................................................................2-14 LABORATORY PRACTICAL........................................................................................2-15 EXERCISE 1: Creating a Crane Assembly......................................................................2-15 EXERCISE 2: Creating Reciprocating Saw Components................................................2-20 CONFIGURING JOINT AXIS SETTINGS 3-1 JOINT AXIS SETTINGS...................................................................................................3-2 Defining the Zero References............................................................................................3-2 Setting the Range of Motion..............................................................................................3-4 Setting the Regeneration Configuration.............................................................................3-4 LABORATORY PRACTICAL..........................................................................................3-5 EXERCISE 1: Configuring Joint Axis Settings.................................................................3-5 DEFINING DRIVERS AND MOTION 4-1 DRIVERS AND MOTION................................................................................................4-2 Selecting a Driver...............................................................................................................4-2 Configuring Driver Profiles................................................................................................4-5 DEFINING MOTIONS......................................................................................................4-7 Configuring Time Domain Settings...................................................................................4-8 Selecting Active Drivers.....................................................................................................4-8 Running Motion Definitions...............................................................................................4-9 LABORATORY PRACTICAL.......................................................................................4-10 EXERCISE 1: Creating Standard Joint Axis Drivers.......................................................4-10 EXERCISE 2: Creating Table Joint Axis Drivers............................................................4-13 EXERCISE 3: Creating Geometric Drivers.....................................................................4-16 WORKING WITH MOTION ANALYSIS RESULTS 5-1 REVIEWING MECHANISM ANALYSIS RESULTS.....................................................5-2 Viewing Playback Results..................................................................................................5-2 Generating Movie and Image Files....................................................................................5-2 Checking Motion Interference............................................................................................5-3 Evaluating Motion Envelopes............................................................................................5-4 Capturing Measurements and Show Plots..........................................................................5-5 Evaluating Trace and Cam Synthesis Curves.....................................................................5-6 LABORATORY PRACTICAL.........................................................................................5-8 EXERCISE 1: Viewing Motion Playbacks and Creating Trace Curves.............................5-8 EXERCISE 2: Creating Measures....................................................................................5-10 EXERCISE 3: Checking for Interference.........................................................................5-13 CREATING CAM AND SLOT CONNECTIONS 6-1 CREATING CAM-FOLLOWER CONNECTIONS.........................................................6-2 Creating Cam Surfaces.......................................................................................................6-2 CREATING SLOT-FOLLOWER CONNECTIONS.........................................................6-4 LABORATORY PRACTICAL.........................................................................................6-6 EXERCISE 1: Creating Geneva Cam Mechanisms...........................................................6-6 EXERCISE 2: Synthesizing Cam Profiles.......................................................................6-12 EXERCISE 3: Creating Slot Connections........................................................................6-21 OPTIMIZING MECHANISM DESIGNS 7-1 BEHAVIORAL MODELING EXTENSION....................................................................7-2 Pro/ENGINEER Analysis..................................................................................................7-2 Datum Analysis Features....................................................................................................7-5 OPTIMIZING MECHANISM DESIGNS..........................................................................7-9 Integrating MDX and BMX...............................................................................................7-9 Optimizing Designs............................................................................................................7-9 LABORATORY PRACTICAL........................................................................................7-10 EXERCISE 1: Creating Motion Definitions in MDX......................................................7-10 EXERCISE 2: Creating Analysis Features in BMX........................................................7-14 EXERCISE 3: Performing Sensitivity Analyses..............................................................7-17 EXERCISE 4: Optimizing the Hand Pump......................................................................7-19 SUMMARY......................................................................................................................7-21 USING PTC HELP A-1 DEFINING THE PTC HELP FEATURES.......................................................................A-2 USING THE Pro/ENGINEER ONLINE HELP................................................................A-2 Defining the PTC Help Table of Contents........................................................................A-8 TECHNICAL SUPPORT B-1 Locating the Technical Support Web Page.......................................................................B-2 Opening Technical Support Calls via E-Mail...................................................................B-2 Opening Technical Support Calls via Telephone..............................................................B-3 Opening Technical Support Calls via the Web.................................................................B-3 Sending Data Files to PTC Technical Support..................................................................B-3 Routing Your Technical Support Calls.............................................................................B-4 Technical Support Call Priorities......................................................................................B-5 Software Performance Report Priorities...........................................................................B-5 Registering for On-Line Support......................................................................................B-5 Using the Online Services.................................................................................................B-6 Finding Answers in the Knowledge Base.........................................................................B-7 CONTACT INFORMATION............................................................................................B-9 Technical Support Worldwide Electronic Services...........................................................B-9 Technical Support Customer Feedback Line....................................................................B-9 TELEPHONE AND FAX INFORMATION...................................................................B-10 North America Telephone Information...........................................................................B-10 Europe Telephone Information.......................................................................................B-11 Asia and Pacific Rim Telephone Information.................................................................B-15 ELECTRONIC SERVICES.............................................................................................B-18