塔式起重机起重臂接触应力计算分析

The Contact Stress Calculation and Analysis of Tower Crane Boom

以塔式起重机的起重臂为研究对象,运用Hertz接触理论,在最大起重载荷工况下分析变幅机构与起重臂接触过程中的局部接触应力。利用ANSYS软件对Hertz接触理论计算结果进行应力校核。根据Hertz理论计算结果与ANSYS有限元分析结果对实际工况下的起重臂与变幅机构进行分析,得出塔式起重机起重臂在最大起重载荷工况下满足设计要求。

Take the tower crane boom as research object,analysing the local contact stress of the contact process of luffing mechanism and boom in the maximum lifting load condition by using Hertz contact theory. Checking the calculation of Hertz contact theory by using the ANSYS Software. According to the calculation of Hertz theory and the analytic result of the ANSYS Software to analyse the boom and luffing mechanism in the actual working conditions,inferring that the tower crane boom at maximum lifting load conditions can meet the design requirements.