On the basis of the research on the frame structure of the multi-point Forming machine, its finite element model and mathematical model have been set up.

本文在对三梁四柱式多点成形压力机机架结构研究的基础上，建立了压力机机架有限元模型和机架结构优化的数学模型。

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The tube bending forming processes are simulated by explicit finite element code LS-DYNA. The model that tube is bent in a rotary machine is adopted.

采用显式有限元分析软件LS - DY NA，对于圆形钢管的弯曲加工过程进行数值模拟。

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