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LANS Publications

"A Hard-Constraint Time-Stepping Approach for Rigid Multibody Dynamics with Joints, Contact, and Friction"

G. D. Hart and M. Anitescu

Preprint ANL/MCS-P1099-1003

Preprint Version: [pdf]

We present a method for simulating rigid multibody dynamics with joints, contact, and friction. In this work, the nonsmooth contact and frictional constraints are represented by hard constraints. The method requires the solution of only one linear complementarity problem per step and can progress at much larger time steps than explicit penalty methods, which are currently the method of choice for most of these simulations.