基于ANSYS的平头塔式起重机起重臂挠度与静应力分析

Analysis of deflection and static stress of flat-headed tower crane jib based on ANSYS

平头塔式起重机整机结构在作业时承受着较大的冲击载荷,为保证起重机服役期间的安全性和可靠性,以QTZ5513平头塔式起重机为研究对象,基于ANSYS软件建立整机结构的有限元模型,并选取5种工况对整机结构进行了有限元分析,获得了起重臂的挠度与整机结构应力分布规律,并将有限元分析数据与试验数据做了对比。仿真结果表明:平头塔式起重机的最大应力位置在起重臂根部,起重机的最大应力值和起重臂端部的挠度在数值上与试验结果保持一致。

The flat-headed tower cranes are subjected to strong impact loads during operation.To ensure the safety and reliability of the crane during service,this paper takes the QTZ5513 flat-headed tower crane as the research object and builds the finite element model of the whole machine structure based on ANSYS software.The finite element analysis of the whole machine structure was carried out by selecting five kinds of working conditions.The deflection of the jib and the stress distribution of the whole structure were obtained,and the finite element analysis data was compared with the experimental data.The simulation results show that the maximum stress position of the flattop tower crane is generally at the root of the jib.The maximum stress value on the crane and the deflection of the end of the jib are basically consistent with the test results.