滚珠旋压非线性动力学有限元模拟  

Finite element simulation of nonlinear dynamic for ball spinning

作　　者：王琛[1] 赵春江[1] 刘杰锋[1] 

机构地区：[1]太原科技大学重型机械教育部工程中心,山西太原030024

出　　处：《重型机械》2015年第6期43-46,共4页Heavy Machinery

基　　金：国家自然科学基金(51375325)

摘　　要：滚珠旋压是一种精密的薄壁管材加工方法。滚珠与模环和工件的接触形式决定了滚珠同时进行公转和自转运动。为了更加精确的分析滚珠旋压的力能参数,本文基于有限元软件Ansys建立了滚珠旋压工艺的非线性动力学分析模型,通过对滚珠摩擦状态的设定,使得模拟结果更加接近实际工况。通过对所计算的三向旋压力与实验数据的对比,验证了模型的可靠性;进而对不同工艺参数下的旋压力进行了计算,得出了旋压力随不同工艺参数的变化规律,为滚珠旋压的工艺与设备设计提供参考。Ball spinning is a precision processing method for thin-walled pipe. The ball motion is the revolution and rotation movements at the same time, due to form of ball and ring die contact with the workpiece. To more precise analyze the force parameters of ball spinning, a ball spinning process nonlinear dynamic model is estab- lished based on Ansys software. Through setting the friction state of the ball, it make the simulation results closer to the actual working conditions. The reliability of the model is proved by comparing the three spinning force calculated with the experiment data, then spinning force under different process parameter were calculat- ed, and the force variation rule under different process parameter is obtained, which provide a reference for the ball spinning process and equipment design.

关 键 词：滚珠旋压 旋压力 摩擦系数 非线性动力学 有限元模拟 

分 类 号：TG306[金属学及工艺—金属压力加工]