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介绍了板料成形数值模拟软件中常用的动力显式算法要点，提出了合理的控制计算时间、提高计算效率的几种方法，并研究了虚拟速度对数值模拟结果的影响。
The key points of dynamical explicit algorithm commonly used in numerical simulation software for sheet metal forming are introduced. Several methods to control computing time and improve computational efficiency are proposed. The influence of virtual velocity on numerical simulation results is also studied.