摘要
根据桁架钢结构的受力特点 ,采用变截面梁单元模拟起重机臂架整体结构 ,建立了一种有限元简便分析方法 ,对履带起重机臂架结构的受力状况和应力特性进行了系统地分析 ,确定了危险工况 .对危险工况在各载荷组合作用下臂架结构的应力分布进行了详细的有限元法分析 ,并对其强度进行了评定 .结果表明 ,有限元简便分析方法可以反映臂架的整体应力状态 。
According to the loading characteristics of lattice structure, a simple finite element analysis method is presented for the boom and jib of cranes. The finite element analysis model is established by ANSYS and static analysis is made for the boom and jib under multi loading conditions. The results show that the simple finite element analysis method can give the effective overall stress distribution, while the detailed finite element analysis method can obtain local characteristics of stress distribution.
出处
《山东大学学报(工学版)》
CAS
2005年第1期22-26,共5页
Journal of Shandong University(Engineering Science)
关键词
起重机
臂架
有限元分析
crane
boom
finite element analysis