A sheet is contacted with the 3D surface from CAD. The sheet is divided into several rectangular patches and the surface is divided into triangular patches. The edge or vertex of a rectangular patch of the sheet is contacted with the triangular patch. If the sheet is contacted with surface, the contact normal and friction forces are generated at the contact points as shown in Figure 1. The output force is the Base force which is acting on Base body Center Marker. The magnitude of contact force is equal with summation of forces of nodes on sheet.
Figure 1 Example of a sheet to surface contact
A Sheet to Surface Contact generates a contact force between a sheet and a surface.
•The sheet and surface must belong to two different bodies.
•The contact force can be not only linear or exponential but also nonlinear spline characteristics to the contact penetration and its velocity.
•The base surface and action sheet are approximated as triangular patches and rectangular patches as shown in Figure 1, respectively.
Figure 2 An example of a sheet to surface contact