带有1/4波长指数形复合变幅杆的超声换能器设计  

Design of ultrasonic transducer with a quarter wavelength composite exponential horn

作　　者：李贵花[1] 张向慧[1] 傅水根[2] 左晶[2] 高炬[2] 

机构地区：[1]北方工业大学机电工程学院,北京100144 [2]清华大学基础工业训练中心,北京100084

出　　处：《机械设计与制造》2009年第5期1-3,共3页Machinery Design & Manufacture

基　　金：北京市教委科技计划项目资助(KM200810009003)

摘　　要：介绍了适合于旋转超声加工的纵向复合式超声换能器的设计。对其进行了理论分析,详细阐述了结构特点、振动方程、振速分布及应力分布等,并获得了换能器振子振幅放大系数、位移节点及应力极大点等参数。然后采用有限元软件ANSYS对其进行模态和谐振分析,得到的结果与理论结果比较,满足工程设计的需要,表明采用有限元法进行分析能够获得较高的精度。Design of longitudinal composite ultrasonic transducer which is used in rotary ultrasonic machining is introduced. By theoretical analysis of ultrasonic transducer,it argues configuration feature ,vibration equation,velocity field and stress field etc. in detail,and achieves magnifying coefficient of amplitude ,displacement nodal position and maximum stress position. The modal analysis and harmonic solutions of finite element analyses of ultrasonic transducer are researched by using the finite element commercial software called ANSYS.The comparison with the results in theory is satisfied with demands of engineering. The achieved FEM results exhibited a remarkably high predictive potential of ANSYS.

关 键 词：超声换能器 理论分析 有限元 ANSYS 模态分析 谐振分析 

分 类 号：TH16[机械工程—机械制造及自动化] TB55[理学—物理]