超声喷丸中级联式变幅杆的动力学特性研究  

Dynamic analysis of the composite horn in ultrasonic shot peening

作　　者：王翠英[1] 轧刚[1] 王跃[1] 

机构地区：[1]太原理工大学机械工程学院,太原030024

出　　处：《机械设计与制造》2011年第3期216-218,共3页Machinery Design & Manufacture

基　　金：山西省自然科学基金项目(2005-1051)

摘　　要：超声强化能有效地提高工件的疲劳极限,延长其疲劳寿命。丸粒速度是影响超声喷丸强化效果的重要因素,而变幅杆振幅的提高可以显著地提高丸粒速度。以提高变幅杆振幅为目的,用解析法设计了级联式变幅杆;在此基础上,用ANSYS软件对其进行了动力学分析,得到了比单一变幅杆更大的振幅放大比。Ultrasonic peening is a special metal surface treatment intended to extend the fatigue life of most machine components.The shot speed,which can be increased by enhancing the amplitude of horn,is an important factor to intensifying the effect in ultrasonic shot peening.A composite horn is designed theoretically to increase its magnification ratio.Simultaneously,its dynamic characters are obtained theoretically by using finite element method.Comparing with single horn,the composite horn based on finite element analysis can obtain larger amplitude ratio.

关 键 词：超声喷丸 级联式变幅杆 ANSYS 动力学 

分 类 号：TH16[机械工程—机械制造及自动化] TG663[金属学及工艺—金属切削加工及机床]