基于SolidWorks Simulation的桥式起重机主梁有限元分析

摘要

为了预测桥式起重机的疲劳寿命,利用SolidWorks Simulation对480 t桥式起重机外主梁进行多工况有限元分析,得到主梁各工况下的应力云图,并与现场测试结果进行对比分析.分析结果表明,最大应力出现在外主梁主腹板过渡圆角变截面区域,这些区域易发生疲劳受损.%In order to predict the fatigue life of bridge cranes, the finite element analysis of the external main girder of 480 t bridge crane is carried out by SolidWorks Simulation. The stress cloud image of the main beam is obtained and compared with the field test results. The results show that the maximum stress appears in the transitional cross section of the main web of the external main girder, which is susceptible to fatigue damage.