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Technical Papers: Contact Modeling

 

View the papers listed below (click on the "Learn more..." links to gain more information about each paper). Or, switch to a different industry or research area from the dropdown menu below.


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.

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.

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A Smooth Contact Algorithm Using Cubic Spline Surface Interpolation for Rigid and Flexible Bodies

Juhwan Choi, Jin Hwan Choi, ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Portland, August 2013, Volume 7A: 9th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, 7 pages.

In order to get more accurate and smooth contact analysis results, RecurDyn has a contact based upon a cubic spline surface interpolation. This contact provides a more accurate penetration depth than a contact based upon facetted triangles.

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A Robust and Efficient General Purpose Contact Algorithm for Rigid and Flexible Bodies

Juhwan Choi, Sungsoo Rhim, Jin Hwan Choi, The 2nd Joint International Conference on Multibody System Dynamics, Stuttgart, May 2012.

In order to develop the robust and efficient general purpose contact algorithms for the rigid and flexible bodies, this study proposed a new contact algorithm. The new contact algorithm is divided into four main parts which are a surface representation, a pre-search, a detailed search and a contact force generation. In the surface representation part, a general surface representation method is proposed which can be used for complex rigid and flexible bodies.

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An efficient and robust contact algorithm for a compliant contact force model between bodies of complex geometry

Juhwan Choi, Han Sik Ryu, ChangWan Kim, Jin Hwan Choi, Springer Science+Business Media B.V., Multibody System Dynamics, January 2010, Volume 23, Issue 1, pp 99-120.

This paper presents an efficient and robust contact search algorithm implemented in RecurDyn for a compliant contact force model between bodies of complex geometry in multibody dynamics. The proposed contact algorithm contains two parts, the pre-search and the detailed search. RecurDyn’s contact definitions are both accurate and efficient.

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