摘要
基于连续驱动摩擦焊接原理,建立了两空心轴用于有限元分析的简化模型,运用直接耦合法并通过插入命令流的方式完成摩擦生热的高度非线性问题的求解。在研究中根据实际工况对压力加载以及位移-压力加载2种不同的焊接工艺参数的加载方式进行了比较研究,研究发现位移-压力加载方式相比于压力加载方式产热更加迅速,应用位移-压力加载方式完成焊接相对应摩擦焊机更加节能。而后对焊接轴向缩短量进行了数值模拟,最后对摩擦焊接数值模拟中的几点关键性技术进行了总结与讨论。
Based on the principle of continuous drive friction welding,a simplified model of two hollow shafts for finite element analysis is established.In addition,the direct coupling method and the method of inserting command flow are used to solve the highly nonlinear problem of frictional heat generation.According to the actual working conditions,the two different loading welding methods of pressure welding and displacement-pressure loading are compared in the study.The results show that the displacement-pressure loading method generates heat more quickly than the pressure-loading method,and the application of the displacement-pressure loading method to complete welding is more energy-efficient than the corresponding friction welding machine.Then,Numerical simulation of axial shortening in welding was carried out.Finally,some key technologies in the numerical simulation of friction welding are summarized and discussed.
作者
李卫民
赵旭东
李岩
LI Wei-min;ZHAO Xu-dong;LI Yan(College of Mechanical Engineering and Automation,Liaoning University of Technology,Jinzhou 121001,China;Department of Mechanical and Electronic Engineering,Jinzhou Normal college,Jinzhou 121001,China)
出处
《辽宁工业大学学报（自然科学版）》
2021年第1期23-27,共5页
Journal of Liaoning University of Technology(Natural Science Edition)
基金
辽宁省教育厅科学技术研究项目(CYYJY-201802)。
关键词
连续驱动摩擦焊
有限元分析
非线性分析
摩擦生热分析
continuous drive friction welding
finite element analysis
nonlinear analysis
frictional thermal analysis
