About Dynamic Analysis
Dynamic analysis is a branch of mechanics that deals with forces and their relation primarily to the motion, but sometimes also to the equilibrium, of bodies. You can use a dynamic analysis to study the relationship between the forces acting on a body, the mass of the body, and the motion of the body.
Keep the following key points in mind when running a dynamic analysis:
• Motion axis-based servo motors are active for the duration of a dynamic analysis. For this reason the From and To times derived from the time domain for the analysis appear as the uneditable Start and End values.
• You can add both servo and force motors.
• If your servo or force motor has a noncontinuous profile, an attempt is made to make the profile continuous before running a dynamic analysis. If the profile cannot be made continuous, the motor is not used for the analysis.
• You can add forces or torques using the External loads tab.
• You can turn gravity and friction on or off.
You can evaluate the positions, velocities, accelerations, and reaction forces at the beginning of your dynamic analysis by specifying a zero time duration and running as usual. A suitable time interval for the calculations is determined automatically. If you graph measures from the analysis, the graph will contain only a single line.
Click
Mechanism Analysis to open the
Analysis Definition dialog box and create, edit, and run your analyses.
|  The application engine uses 3 rd order Runge Kutta integrators for dynamic analysis. You can use the mdo_integration_method configuration option values to set the integration method. • auto (default)—The system automatically switches between implicit and explicit integration when needed. • implicite—The system uses only implicit integration. • explicite—The system uses only explicit integration. |