A general purpose contact algorithm using a compliance contact force model for rigid and flexible bodies of complex geometry
Juhwan Choi, Sungsoo Rhim, Jin Hwan Choi, International Journal of Non-Linear Mechanics, July 2013, Volume 53, pp 13-23.
Abstract
The analysis of multi-flexible-body dynamics (MFBD) has been an important issue in the area of computational dynamics. Also, dynamic analysis of many mechanical systems often involves contacts among rigid and flexible bodies. But, until now, the contact analysis in the multi-flexible-body dynamics has still remains a big, challenging area. In order to simulate the contact phenomena, this study uses a compliant contact force model based on the Hertzian contact theory. When generating the contact force with a compliant contact force model, a penetration depth and a contact reference frame (a contact point and normal and tangent directions) must be determined from the geometrical information of the rigid and flexible body surfaces.
How Multibody Dynamics Simulation Technology is Used
Contact analysis in multi-flexible-body dynamics (MFBD) is a challenging area. RecurDyn has a powerful contact algorithm that can use general rigid and flexible geometries. Contact is defined in four parts which are surface representation, a pre-search, a detailed search and a contact force generation. RecurDyn is able to accurately model these contacts while minimizing computation time.
