When you know elastic properties from experimental or simulated data, clear Material in the Contact PropertyManager to enter this data.
For more information on the PropertyManager, see Motion Studies Help: Contact PropertyManager.
To open the PropertyManager, from a Motion Analysis study, click Contact 
.
Impact
| Stiffness |
Sets the stiffness k to approximate the material stiffness at the boundary of interaction between the two parts in collision.
|
| Exponent |
Sets the exponent e in the assumed exponential force versus displacement model. |
| Max. damping |
Sets the maximum damping coefficient cmax of the boundary interaction. |
| Penetration |
Sets the positive boundary penetration value dmax at which the SolidWorks Motion solver applies cmax, the Max. damping value.
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The SolidWorks Motion solver uses a damping value that is less than Max. damping when calculating penetrations less than Penetration.
Impact Equation
Fn = k * (ge) + Step (g, 0,0, dmax, cmax) * dg/dt
| Fn |
Impact force |
| g |
Penetration of one geometry into another |
| dg/dt |
Penetration velocity at the contact point |
Restitution coefficient
| Coefficient |
Sets the ratio of relative velocities of two elastic spheres before and after impact. |