关键词: 并行, 分区, 体积成形过程, 无网格法, 再生核质点法, 产品设计质量, 概念设计, 功能, 可供性, 物-场可供性模型

Abstract: A computational implementation of modern explicit meshless methods is presented for explicit for 3D bulk forming process. The implemented parallel meshless method is based on the reproducing kernel particle method (RKPM) theory. Partitioning scheme modified recursive spectrum bisection (MRSB) procedure is applied for geometry model in preprocess. Explicit MPI message passing statements are used for coarse grain parallel program in analysis process. According to characterizes of contact search problem, the parallel contact search algorithm is also presented. The parallel program is coded and implemented into 3D bulk metal forming problems. The severe distortion mesh grid problem is settled and the simulation results demonstrated the efficiency of the suggested parallel RKPM algorithm.

Key words: Bulk forming process, Parallel, Partition, Reproducing kernel particle method Meshless method, Affordance, Conceptual design, Function, Quality of the product design, Substance-Field Affordance Model