6.4.3.10. Sphere In Torus

A Sphere In Torus Contact generates a force between a sphere and a torus.

• The sphere and torus must belong to two different bodies.

• The sphere must be defined an action geometry and the torus must be defined a base geometry.

• The sphere must be inside of the torus.

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

6.4.3.10.1. Modeling Options

In the case of Sphere In Torus contact, a sphere geometry type is supported for an action geometry and a torus geometry type is supported for a base geometry when creating.

• Torus, Sphere

  • Torus: Selects a torus to define a base torus.

  • Sphere: Selects a sphere to define an action sphere.

• Torus, MultiSphere

  • Torus: Selects a torus to define a base torus.

  • MultiSphere: Selects some spheres to define action spheres.

• Torus, Sphere, Torus, Sphere

  • Torus: Selects a torus to define a base torus.

  • Sphere: Selects a sphere to define an action sphere.

  • Torus: Selects a torus to define another base torus.

  • Sphere: Selects a sphere to define another action sphere.

• MultiTorus, MultiSphere

  • MultiTorus: Selects some toruses to define base toruses.

  • MultiSphere: Selects some spheres to define action spheres.

6.4.3.10.2. Properties

Figure 6.366 Properties of SphereInTorus dialog box

• Definition of The Base Torus

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

  • Major Radius: Shows the major radius of base torus.

  • Minor Radius: Shows the minor radius of base torus.

  • Angle: Shows the angle of base torus.

  

  Figure 6.367 Definition of faces of a torus

  • Open Face: The torus geometry has three faces. Two of the faces are in both end sides, and they are closed as default as shown in Figure 6.367. To open the side, the user can do it with using this option. The checked Open Face is automatically shown on the Working Window.

    • Start Face is located at which an angle of torus is zero.

    • End Face is located at which an angle of torus is the specified Angle.

• Definition of The Action Sphere

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

  • Radius: Shows the radius of an action sphere.

• Synchronize with Geometry

  • If this option is checked, Major Radius, Minor Radius, Angle and Radius in contact properties are automatically defined with that of the specified graphic.

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

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