旋转超声加工振动系统的研究  

A Vibration system for rotary ultrasonic machining

作　　者：张向慧[1,2] 钱桦[1] 

机构地区：[1]北京林业大学工学院,北京100083 [2]北方工业大学机电学院,北京100144

出　　处：《振动与冲击》2010年第4期218-221,共4页Journal of Vibration and Shock

基　　金：北京市教育委员会科技发展计划面上资助项目(KM200810009003)

摘　　要：利用振动理论进行旋转超声振动系统的结构设计,可以获得振动系统的放大系数,应力分布和速度分布等重要参数。并把ANSYS有限元分析软件应用于简单的阶梯形变幅杆进行模态分析,得到共振频率19575Hz,设计误差仅为2.12%,证明其有限元方法能够满足旋转振动系统的工程设计要求,从而提高其设计的效率和可靠性。A rotary ultrasonic vibration system(RUVS)was designed by using vibration theory to obtain its important parameters,such as,its magnification coefficient,stress and veolcity distribution,etc.Meanwhile,the modal analysis of a step horn was stadied to obtain its resonance frequency 19 575 Hz by means of ANSYS.The frquency error calculated was only 2.12%.The research results showed that the proposed finite eleinent method can meet the reqaire-ments for engineering design of a RUVS,higher efficiency and reliability of design are obtained.

关 键 词：旋转超声加工 超声振动系统 超声换能器 变幅杆 工具杆 

分 类 号：TG663[金属学及工艺—金属切削加工及机床]