大截面变幅杆的有限元分析  

Finite element analysis of large cross-section ultrasonic transformer

作　　者：解妙霞[1] 李全禄[1] 郝淑娟[1] 

机构地区：[1]陕西师范大学应用声学研究所,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2006年第2期51-53,共3页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(10374064)

摘　　要：应用Ansys通用有限元程序,对指数形变幅杆进行了模态分析,得到了纵向振动共振频率、位移节点、放大系数等参数.在此基础上,采用同一数学模型对较为复杂的大横截面指数形变幅杆进行了模态和谐态分析.结果表明,应用有限元分析方法获得的精度较高,这对较大横截面指数形变幅杆的设计和研究具有一定参考价值.Normal modes of an exponential pole are analyzed utilizing finite element method. Some important characteristic parameters such as resonance frequency, vibration mode and magnifying factor are obtained. The comparison with the theoretical results shows the modal analysis has obtained accurate results. Furthermore, normal modes and harmonic response of a large cross-section exponential pole are analyzed using the same mathematic model. The results may be useful to the large cross-section transformer research and design.

关 键 词：超声变幅杆 有限元法 模态分析 

分 类 号：O426.1[理学—声学]