首页> 外文会议>IMECE2008;ASME international mechanical engineering congress and exposition >A GPU-BASED IMPLEMENTATION OF A CONE CONVEX COMPLEMENTARITY APPROACH FOR SIMULATING RIGID BODY DYNAMICS WITH FRICTIONAL CONTACT
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A GPU-BASED IMPLEMENTATION OF A CONE CONVEX COMPLEMENTARITY APPROACH FOR SIMULATING RIGID BODY DYNAMICS WITH FRICTIONAL CONTACT

机译:锥接触的刚体动力学模拟的基于圆锥的锥互补互补方法的实现

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In the context of simulating the frictional contact dynamics of large systems of rigid bodies, this paper reviews a novel method for solving large cone complementarity problems by means of a fixed-point iteration algorithm. The method is an extension of the Gauss-Seidel and Gauss-Jacobi methods with over-relaxation for symmetric convex linear complementarity problems. Convergent under fairly standard assumptions, the method is implemented in a parallel framework by using a single instruction multiple data computation paradigm promoted by the Compute Unified Device Architecture library for graphical processing unit programming. The framework supports the analysis of problems with a large number of rigid bodies in contact. Simulation thus becomes a viable tool for investigating the dynamics of complex systems such as ground vehicles running on sand, powder composites, and granular material flow.
机译:在模拟大型刚体系统的摩擦接触动力学的背景下,本文回顾了一种通过定点迭代算法求解大圆锥体互补问题的新方法。该方法是高斯-赛德尔(Gauss-Seidel)和高斯-雅各比(Gauss-Jacobi)方法的扩展,具有对称凸线性互补问题的超松弛。在相当标准的假设下收敛,该方法在并行框架中通过使用由Compute Unified Device Architecture库推动的单指令多数据计算范例进行图形处理单元编程来实现。该框架支持对大量刚体接触的问题进行分析。因此,仿真成为研究复杂系统动力学的可行工具,例如在沙子,粉末复合材料和颗粒状物料流上行驶的地面车辆。

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