A Regularized Contact Model with Asymmetric Damping and Dwell-Time Dependent Friction
作者： Yves Gonthier , John McPhee , Christian Lange , Jean-Claude Piedbœuf
DOI: 10.1023/B:MUBO.0000029392.21648.BC
关键词: Function (mathematics) 、 Dwell time 、 Contact dynamics 、 Coefficient of restitution 、 Mathematical analysis 、 Plane (geometry) 、 Engineering 、 Classical mechanics 、 Lag 、 State variable 、 Collision response
摘要: A general regularized contact model, including normal compliance, energydissipation, and tangential friction, is described in this paper. Thenormal damping coefficient formulated as a function of the coefficientof restitution e impact velocity only; results areenergy-consistent, with continuous force progression at beginningand end impact, for both small large values e.The introduced seven parameter friction model based on an explicitformulation forces suitable real-timeapplications. The are split into its sliding andsticking contribution temporal lag effect, dwell-time, isincluded using novel dwell-time dependent stick state variable. Several examples presented to demonstrate features thisgeneral model. simulation double pendulumhitting plane obtained, comparison benchmark problem shows behavior good agreement published results.
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