Creating a Sketched-Law Excitation

Sketched-Law Excitation drives a command in your mechanism according to a design table or a formula. To do so, for each time step of the kinematics simulation, associate a spline or a curve and a reference axis to the command.

Before you begin:
  • Open a kinematics simulation referencing a mechanism in the Mechanical Systems Experience app. app.
  • Design a spline or curve in the Sketcher app
  • Create a sketch, or sketch-based law in the Generative Shape Design app.
  1. To define the sketched-law excitation:
    1. Under the mechanism representation node in the tree, select the kinematics command to drive with this excitation.
    2. Under the part representation node, select either a Generative Shape Design sketch-based law or a sketch defining the excitation profile.
    3. Under the Scenario node, select a scenario to attach the excitation to it.

      If no scenario exists, the Referenced scenario option is grayed out, and you can select the Time-scale option.

  2. Click OK.
  3. To define the sketched-law excitation, do one of the following:
    • Right-click the law excitation and select Definition.
    • Double-click the law excitation.
    • Under the Relations node in the tree, click the scenario formula.
  4. To visualize the new knowledge formula generated as the new definition of the law excitation, click or double-click the scenario.
  5. To define the excitation using a formula, right-click the Length formula or Angle formula box, and select Formula > Edit.
  6. To define the excitation using a design table, from the Tools section of the action bar, click Design Table .
    The design table appears in the Length formula or Angle formula box.
    Note: To edit the design table, click .
  7. Once the appropriate excitation is defined, click OK to save the kinematics excitation.

 

See Also
More help on this topic
About Interpolation of Time Increments
Creating a Kinematics Scenario