谷物联合收割机脱粒机机架模态分析  

Analysis of combine harvester threshing machine modal

作　　者：臧世宇 吴崇友[2] 韩雄 

机构地区：[1]安徽农业大学工学院,合肥市230036 [2]农业部南京农业机械化研究所,南京市210014 [3]甘肃省会宁县农机监理站,甘肃会宁730700

出　　处：《中国农机化学报》2016年第5期4-7,共4页Journal of Chinese Agricultural Mechanization

基　　金：国家支撑计划课题(2013BAD08B02)

摘　　要：为分析谷物联合收割机脱粒机机架的振动特性,运用Pro/E软件建立机架的三维模型,并导入到ANSYS Workbench中进行模态分析,得到前6阶固有频率、振型特征云图与最大振动变形量,找到机架的薄弱环节,并将固有频率与外部激励加以对比,验证是否能有效避免共振发生。为后面产品设计与进一步的动力学分析奠定基础。In order to analysis of the vibration characteristics of a certain type of combine harvester threshing machine,the author established the three-dimensional model of the frame by using Pro/E software,and imported into ANSYS Workbench for modal analysis,then got the first six order natural frequency,vibration characteristics nephogram and maximum vibration deformation,and also known the weakness chain of the frame.The author compared the natural frequency and the external excitation to verify whether they could be avoided effectively.This paper had make a deep foundation for the following product design and dynamic analysis.

关 键 词：机架 模态分析 固有频率 有限元 振型 

分 类 号：S225.3[农业科学—农业机械化工程]