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针对目前世界上最大的800MN模锻压机安装过程中的辅助工装桁架,进行钢结构设计计算与有限元分析研究。首先运用三维设计软件Solidworks,设计建立桁架的三维实体模型,然后根据模型结构和几何参数在ANSYS中建立简化的有限元分析模型,对桁架工作过程中的最不利工况进行载荷分析,并运用ANSYS软件对其进行有限元强度、刚度以及稳定性分析,进而得出最不利工况的应力云图、位移云图以及位移-载荷曲线。分析结果表明:工装桁架最大应力和最大挠度均分别小于许用应力和许用挠度,工作稳定安全系数远大于许用稳定安全系数;模锻压机的成功安装,证明了桁架设计的合理性、安全性和可靠性。
Aiming at the truss of auxiliary truss installed in the largest 800MN forging press in the world at present, the steel structure design and calculation and finite element analysis are studied. Firstly, a three-dimensional solid model of truss was designed by using Solidworks software. Then, a simplified finite element model was established in ANSYS according to the model structure and geometry parameters. The most unfavorable working conditions during truss work were analyzed by load analysis and ANSYS The software carries on the finite element strength, the rigidity and the stability analysis, then derives the most unfavorable condition's stress cloud chart, the displacement cloud chart and the displacement - load curve. The results show that the maximum stress and the maximum deflection of truss truss are less than the allowable stress and allowable deflection respectively, and the safety factor of work stability is much larger than the allowable stability safety factor. The successful installation of die forging press proves the rationality and safety of truss design Sexuality and reliability.