CATIA运动仿真教程.pdf

Crankslider Mechanism Tutorial Problem Statement The purpose of this exercise is to use the IntelliMotion Builder to demonstrate the procedure for configuring the mechanism and to then check for interference. Arm Link1 Link2 Cardan Crank Collar The mechanism comprises of a crank connected via link1 and a universal joint (cardan component) to the Arm component to provide an oscillatory motion. This in turn is connected via another link to a collar that slides back and forth on a shaft. Step 1 Open Model Set Workbench You will need to run the DDMV5R7 or DDMV5R8 profile shortcut to enable the Dynamic Designer Workbench. Open the product file crankslider_tutorial.CATProduct located in the crankslider sub-folder in the tutorials directory of the installation. If your workbench is not already set to Dynamic Designer (look at the Workbench icon at the top right hand side of the toolbar), then activate the Dynamic Designer Workbench under START – DIGITAL_MOCKUP – DYNAMIC DESIGNER. The Dynamic Designer commands can be accessed via the toolbar icons or the pull down menu (see below) Step 2 Create Mechanism from Assembly To auto create the mechanism from the assembly, click on the Convert Mechanism Icon . This will bring up a dialog box asking if you want to convert the assembly constraints when the mechanism is created. Make sure this option is selected before proceeding. The Screen should now look like that below where there are motion entity icons on the graphics screen. Expand the treeview to show the APPLICATIONS – DYNAMIC DESIGNER branches. You should see the following mechanism data: Note that the assembly constraints have been mapped to Dynamic Designer joints and that the grounded parts in the assembly have been automatically made grounded in