摆动活齿减速器系统有限元模态分析  

Modal Analysis of Swing Movable Teeth Reducer by Using Finite Element Method

作　　者：梁尚明[1] 罗伟[1] 徐俊光[1] 徐礼钜[1] 

机构地区：[1]四川大学制造科学与工程学院,四川成都610065

出　　处：《四川大学学报（工程科学版）》2004年第2期77-80,共4页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家自然科学基金资助项目 (5 9975 0 62 )

摘　　要：针对摆动活齿减速器的结构特点 ,提出了摆动活齿减速器的有限元模型的建模方法。在UG18中建立摆动活齿减速器的三维实体装配模型 ,将模型输出为Parasolid文件 ,并读入ANSYS ;在划分网格后 ,在Volume之间的界面上定义接触单元 ,同时 ,采用了精度比较高 ,而且计算规模又可以接受的单元网格划分方法 ,得到了网格划分图。最后 ,利用BlockLanczos方法求出了摆动活齿减速器固有频率和振型。模态分系的结果对产品的设计和改进具有一定的指导意义。A method of building the finite element model of swing movable teeth reducer was put forward according to the characteristics of the construction of swing movable teeth reducer. A three dimensional model of the assembly of swing movable teeth reducer was built by using UG18. The model was output and converted into a Parasolid file. After that, the model was input into ANSYS. After the mesh of the model had been divided, the contact elements were defined on interfaces between volumes. Meantime, a mesh dividing method, which has high precision and acceptable calculating scale, was used. The natural frequencies and vibration modes of swing movable teeth reducer were solved by using Block Lanczos method. The results of modal analysis can be used to design and improve the reducer.

关 键 词：摆动活齿减速器 有限元 模态分析 

分 类 号：TH132[机械工程—机械制造及自动化]