摘要
运用有限元软件ABAQUS强大的处理功能建立了钢轨铝热焊接接头弹塑性分析的有限元模型,并在此基础上进行轮轨纯滚动接触和全滑动接触两种工况下的焊接接头力学性能分析;然后在纯滚动接触的基础上,研究各项性能参数如车速、焊接接头位置、焊缝热影响区宽度、接头不平顺及波深等的影响。结果表明,轮轨滑动接触对接头损伤较大,车速、焊接接头位置、焊缝热影响区宽度对焊接接头力学性能有重要影响。
A finite element model of rail welding joint is built with the finite element software ABAQUS, and the ABAQUS is used to analyze the mechanieal properties of rail thermite welding joint under the pure roiling condition and pure sliding eontion. Then basing on the analysis of the pure rolling wheel-rail contact, study the influence of the performance parameters such as speed of train, position of welding joint, width of welding zone. The results show that the sliding wheel-rail contact do harm to welding joint, the speed of train, position of welding joint and width of welding zone has considerable effects on the mechanical properties of welding joints.
出处
《机电一体化》
2013年第5期27-30,71,共5页
Mechatronics
关键词
有限元分析
钢轨铝热接头
力学性能
finite element rail thermite welding joint mechanical properties
