运用有限元模拟软件对不锈钢带凸缘半球面形件进行了拉延过程模拟。
The forming process of drawing of stainless steel flanged hemisphere-shaped workpiece is numerically simulated and analyzed by using the FEM simulation software.
通过计算机模拟验证了该加工方法的简便与可靠性，可以降低非球面反射镜加工的设备投入，提高生产效率。
The machining approach is verified to be simple and reliable by computer simulation, so the production efficiency can be improved and the equipment input can be reduced.
采用三维有限厚度带球面键槽接缝单元模拟拱坝横缝，推导了球面键槽的接触物理方程，探讨了球面键槽的最优中心角。
A 3-d isoparametric joint element with spherical surface key grooves of finite thickness is used to simulate transverse joints of arch dam.
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