6.4.4.6. Circle In Circle

A Circle In Circle Contact Force generates a force between one circle and the other circle.

• Two circles must belong to two different bodies.

• The action circle must be inside of the base circle.

• The contact force can be not only linear or exponential but also nonlinear spline characteristics to the contact penetration and its velocity

6.4.4.6.1. Modeling Options

In the case of Circle In Circle contact, a circle geometry type is supported without base and action geometries when creating.

• Circle, Circle

  • Curve: Selects a circle to define a base circle.

  • Circle: Selects a circle to define an action circle.

• Circle, MultiCircle

  • Circle: Selects a circle to define a base circle.

  • MultiCircle: Selects some circles to define action circles.

• Circle, Circle, Circle, Circle

  • Circle: Selects a circle to define a base circle.

  • Circle: Selects a circle to define an action circle.

  • Circle: Selects a circle to define another base circle.

  • Circle: Selects a circle to define another action circle.

• MultiCircle, MultiCircle

  • MultiCircle: Selects some circles to define base circles.

  • MultiCircle: Selects some circles to define action circles.

6.4.4.6.2. Properties

Figure 6.398 Properties of CircleInCircle dialog box

• Definition of The Base Circle

  • Entity Name: Defines the name of base circle. The base circle can be dispatched from the Working Window by clicking Gr.

  • Radius: Shows the radius of base circle. This value is automatically determined by the radius of the action geometry but if the user doesn’t check the Synchronize with Geometry option, the user can directly input the radius or change it as the parametric value by clicking PV.

  • Depth: Shows the depth of base circle.

• Definition of The Action Circle

  • Entity Name: Defines the name of action circle. The action circle can be dispatched from the Working Window by clicking Gr.

  • Radius: The radius of action circle. This value is automatically determined by the radius of the action geometry but if the user doesn’t check the Synchronize with Geometry option, the user can directly input the radius or change it as the parametric value by clicking PV.

• Synchronize with Geometry

  • If this option is checked, Radius in contact properties is automatically defined with that of the specified graphic. (The default is checked.)

  • If this option is not checked, the user can modify the contact properties.

• Force Display: Graphically displayed the resultant force vector on the view window.