中文摘要：

采用SOLIDWORKS软件对THP37-150A型液压机进行三维几何建模,根据几何模型在ANSYS中建立了主机和上横梁有限元模型,并进行有限元分析.满载荷工况下主机结构静力分析结果表明：液压机的主机各部件的强度可靠,但上横梁的挠曲变形较大.针对挠曲变形过大的问题,对上横梁提出了3种优化方案,通过有限元分析得出方案3为最佳方案,该方案采用增大上横梁的上、下两个盖板厚度的方法来减小变形.优化后的结果满足液压机许用变形要求,为液压机的结构改进提供理论依据和量化指标.

英文摘要：

Three dimensional geometric model of THP37-150A hydraulic press was built based on SOLIDWORDS software and finite element model was gained by ANSYS software. For the main frame and upper beam, finite element analysis was done. The simulation results of full load show that the strength of the main frame is reliable, but the deformation of the upper beam exceeds the allowable value. In order to solve this problem, three optimum schemes were put forward. By finite element analysis, the third scheme was verified to be the best one. In this scheme, deformation of the upper beam was successfully reduced by increasing the thickness the upper beam＇ s panels. The deformation of this scheme meets the allowable value and the methods in this paper give some theory and quantification guides on improving the press structural design.