数值模拟塑性成形过程的并行计算现状

鉴于塑性成形过程复杂，数值模拟工作量大而耗时，指出塑性成形过程弹塑性力学、热力学及其耦合等问题的数值模拟应采用高效并行的计算方法。简要分析了并行与串行的特点，简介了并行计算机和数值并行计算算法的发展概况，简述了并行计算程序的设计过程，对并行计算所涉及的关键性技术及性能评价指标进行了分析论述。简要叙述了近年来国内外在数值模拟并行计算领域特别是塑性成形过程的并行计算的研究进展，提出一种数值模拟弹塑性接触问题的高效并行凝缩算法，并对未来数值模拟并行计算的前景进行了展望。

Parallel computation in numerical simulation of metal forming

Considering the complexity of metal forming process and the expensive time cost for its numerical simulation, it is explicitly pointed out that the elastic plastic and thermal dynamics and their coupling in metal forming process should be solved by highly efficient parallel computation methodThe characteristics of the parallel and serial computation are briefly analyzed and the evolution of parallel computer and numerical parallel computation are presentedThe process of designing a parallel computation program is expounded and the key techniques and parameters for evaluating performance of parallel computation are simply explicatedThe investigation and development in the domain of parallel numerical simulation are simply stated especially for metal forming processA new highly efficient parallel computation method of numerical simulation is specially put forward to solve the elastic plastic contact problemThe development of parallel numerical simulation in the future is predicted finally