2888t·m双回转铁路起重机底架结构优化  

2 888 t·m double rotary railway crane chassis structure optimization

作　　者：温保乐 张仲鹏[1] 狄阳[1] 王悦[1] 刘泽超[1] 

机构地区：[1]西南交通大学机械工程学院,成都610031

出　　处：《现代制造工程》2015年第5期74-78,共5页Modern Manufacturing Engineering

基　　金：铁道部科技研究开发计划项目(2007J017);中央高校基本科研业务费专项资金资助项目(2010ZT03)

摘　　要：以最大起重力矩为2 888t·m的双回转铁路起重机底架为研究对象,对其进行基于ANSYS的有限元分析和结构优化设计。在前人研究的基础上,采用底架与支腿耦合的方式,以底架几个主要结构尺寸和板厚为设计变量,将底架应力和挠度作为状态变量,对其在几种危险工况下进行优化并利用所有工况进行验算,综合各优化结果进行圆整,最终得到底架优化后的结构参数值。充分发挥出材料的机械性能,有效地实现了轻量化设计,证明了底架结构尺寸优化的必要性,为今后大吨位双回转铁路起重机底架结构的设计研究提供了新的思路。By taking the 2 888 t · m double rotary railway crane as the research object, analyses the chassis and optimizes the structure by a finite element analysis software based on ANSYS. With previous research, optimizes several dangerous working conditions and verifies all conditions adopting the method of coupling of chassis and leg, and taking several main structure sizes and thickness of chassis as the design variables, and using the chassis allowable stress and deflection as state variables. The optimal model effectively utilizes the mechanical properties of the material and achieves lightweight design. The results prove the necessity of size optimization of the chassis structure, which provides a new way for future large tonnage double rotary railway crane chassis structure research.

关 键 词：底架 有限元分析 结构优化 工况 轻量化 

分 类 号：TH13[机械工程—机械制造及自动化]