大吨位桥式起重机主梁跨端变截面处有限元分析

摘要

以起重量为200 t,跨度为31 m的桥式起重机为例,运用Visual C++6.0对ANSYS进行二次开发,借助ANSYS自带的参数化设计语言(APDL),根据桥式起重机桥架结构的特点采用自底向上的方法建立桥架结构的参数化有限元模型,并实现有限元分析过程的程序化.在此基础上,着力研究影响主梁跨端变截面处应力分布的各个因素,为今后大吨位桥式起重机主梁跨端变截面处的合理设计提供参考.%This article from the weight of 200 t,span 31 m overhead crane.for example, the use of Visual C++ 6.0 on the ANSYS second development that comes with the ANSYS Parametric Design Language (APDL) under the overhead crane bridge structure is characterized by the use of bottom-up method to establish the parameters of the bridge structure finite element model,and finite element analysis to achieve the procedural process. On this basis,efforts to study the impact of changing the main beam cross-section at the end of the stress distribution on the various factors for future large-tonnage overhead crane girder span at the end of the rational design of variable cross-section provide a useful reference.