摘要
针对所设计的新型20m桥梁检测车的两对行走支腿结构,利用Pro/E软件建立了箱式结构的实体模型,采用有限元软件ANSYS定义了轴与轴套、耳板和液压油缸的4个接触对,并进行了接触非线性分析求解。有限元分析结果表明,所设计的箱式焊接支腿结构的应力在设计允许范围内,具有足够的强度来承受桥梁检测车整车质量。接触有限元分析为校核支腿结构强度提供了重要的理论方法,为桥梁检测车的结构设计与实际生产提供了理论依据与技术支持。
Four ambulant supporting legs of the new designed 20-meters bridge-inspection vehicle are modeled using Pro/E software. Four contact areas, the shaft surface on contacts with the surface of the axile bush, the otic placode, and the hydraulic ram, are defined within the finite element code ANSYS. The contact finite element analysis of the fore and the rear ambulant supporting legs are performed. The analysis results show that the part＇s stresses are lower than the material allowed stress, and the box weld legs are strong enough to bear the total weight of the bridge-inspection vehicle. The finite element analysis is an important theoretic method to verify the design, and the results provide theoretic basis and technological support for the product design and manufacture.
出处
《机械工程师》
2014年第6期126-128,共3页
Mechanical Engineer
关键词
桥梁检测车
支腿
有限元
接触
应力
bridge-inspection vehicle： ambulant supporting leg
finite element analysis
contaet
stress
