圆锥形变幅杆的设计及有限元分析  

The Design and Finite Element Analyses of the Ultrasonic Amplitude Transformer of Conical Type

作　　者：胡小平[1] 黄仕彪[1] 张云电[1] 

机构地区：[1]杭州电子科技大学,浙江杭州310018

出　　处：《机电工程》2005年第2期32-36,共5页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金资助项目 (5 0 2 75 0 43 )

摘　　要：超声变幅杆是功率超声振动系统中的重要组成部件。本文以一个实际应用为例通过解析法设计一个半波长圆锥形变幅杆 ,并用有限元软件ANSYS对变幅杆进行模态分析 ,确定变幅杆的固有频率。最后用有限元法对带工具的变幅杆进行修正设计 ,使变幅杆的某阶固有频率和系统工作频率相等 。Ultrasonic amplitude transformer is an important part in the power ultrasonic vibrating systems. With an application example, this paper designs a half-wavelength amplitude transformer of conical type by analysis method, then it makes freedom modal analysis on the transformer with finite element analysis software ANSYS, and obtains the intrinsic frequency of transformer. Finally it amends the transformer which attached tool by finite element method, the purpose of amendment design is to let certain intrinsic frequency equal to the system frequency, so as to make sure that transformer can lengthways resonate reliably when it is working.

关 键 词：变幅杆 模态分析 有限元法 修正设计 

分 类 号：TB559[理学—物理] O242.21[理学—声学]