超声滚压加工再生型颤振系统的稳定性分析  

Stability Analysis of Ultrasonic Rolling Process Regenerative Chatter System

作　　者：张明[1] 姚静 刘让雷 ZHANG Ming YAO Jing LIU Ranglei(College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《电加工与模具》2017年第5期46-48,65,共4页Electromachining & Mould

摘　　要：基于超声波滚压加工,探讨了加工过程中颤振的产生机理及控制途径。首先,将工件简化为转子模型、将滚压装置简化为单自由度的振动系统,建立了再生型滚压加工的颤振模型,并进行了特性分析。基于Matlab/Simulink仿真功能,绘制出不同滚压宽度值时的时域图,得到振动系统发生颤振的临界极限状态。仿真结果与理论分析计算的极限滚压宽度相符,对实际加工中抑制颤振现象具有积极的指导作用。Based on the ultrasonic rolling process, discusses the generation mechanism of chatter and the control approach in the process of machining. Firstly,the machined workpiece is simplified as rotor model and the rolling device is simplified as single freedom of vibration system, the flutter model of regenerative rolling process is established ,and the characteristic analysis is carried out. Based on the Matlab/Simulink simulation function,the critical limit state of flutter in a vibration system is obtained by plotted the time domain chart of rolling width of different values. The simulation results accord with the limit rolling width calculated by theoretical analysis,it has positive guiding role for the chatter suppression in actual processing.

关 键 词：超声波滚压加工 再生型颤振 极限滚压宽度 仿真 

分 类 号：TG663[金属学及工艺—金属切削加工及机床]