6.4.2.8. Cylinder To Surface

A Cylinder To Surface Contact generates a force between a cylinder and surface. The base surface has a RM and many points. The action cylinder has a RM and its radius and length. The base curve is parameterized from many points and creates a contact curve fitted on a cubic spline.

• The cylinder and surface must belong to two different bodies.

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

• The base surface is approximated as multi triangular patches as shown in Figure 6.350.

  

  Figure 6.350 Cylinder and surface

6.4.2.8.1. Modeling Options

In the case of Cylinder To Surface contact, a cylinder geometry type is supported for an action geometry and surface geometry type is supported for a base geometry when creating.

• Surface, Cylinder

  • Surface: Selects a surface to define a base surface.

  • Cylinder: Selects a cylinder to define an action cylinder.

• Surface, MultiCylinder

  • Surface: Selects a surface to define a base surface.

  • MultiCylinder: Selects some cylinders to define action cylinders.

• Surface, Cylinder, Surface, Cylinder

  • Surface: Selects a surface to define a base surface.

  • Cylinder: Selects a cylinder to define an action cylinder.

  • Surface: Selects a surface to define another base surface.

  • Cylinder: Selects a cylinder to define another action cylinder.

• MultiSurface, MultiCylinder

  • MultiSurface: Selects some surfaces to define base surfaces.

  • MultiCylinder: Selects some cylinders to define action cylinders.

• Solid(Shell), Cylinder

  • Solid(Shell): Selects a solid or a shell to define a base surface.

  • Cylinder: Selects a cylinder to define an action cylinder.

• Solid(Shell), MultiCylinder

  • Solid(Shell): Selects a solid or a shell to define a base surface.

  • MultiCylinder: Selects some cylinders to define action cylinders.

• Solid(Shell), Cylinder, Solid(Shell), Cylinder

  • Solid(Shell): Selects a solid or a shell to define a base surface.

  • Cylinder: Selects a cylinder to define an action cylinder.

  • Solid(Shell): Selects a solid or a shell to define another base surface.

  • Cylinder: Selects a cylinder to define another action cylinder.

  • MultiSolid(Shell), MultiCylinder

  • MultiSolid(Shell): Selects some solid or shells to define base solids.

  • MultiCylinder: Selects some cylinders to define action cylinders.

6.4.2.8.2. Properties

Figure 6.351 Properties of CylinderToSurface dialog box

Figure 6.352 Preview of the normal directions, contact patches and boundary box

• Definition of The Base Surface

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

  • Normal Direction: Defines the normal direction of a base surface for a contact as shown in Figure 6.352.

    • The contact is available in the specified direction.

    • As selecting Up or Down, the user can change the contact direction of a base surface.

    • If this page is activated, the normal direction is automatically shown on the Working Window

  • Preview Contact Surface: If this button is checked, the patches making the contact surface and its boundary box are shown on the Working Window as shown.

  • Contact Surface: Accesses the Contact Surface dialog box. For more information, click here.

• Definition of The Action Cylinder

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

  • Radius: Shows the radius of action cylinder.

  • Length: Shows the length of action cylinder.

  • Synchronize with Geometry

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

    • 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.