风机叶片裂纹的诊断研究  

Diagnosis research of fan blade cracks

作　　者：沈亮霓[1] 邹圆刚[1] 刘晓波[1] 

机构地区：[1]江西理工大学机电工程学院,赣州341000

出　　处：《机械设计与制造》2008年第6期130-132,共3页Machinery Design & Manufacture

基　　金：江西省自然科学基金资助项目(0550029)

摘　　要：采用CAD软件建立了风机叶片的三维实体模型,后通过有限元分析软件ANSYS对裂纹叶片进行了动力学分析。结果表明:裂纹的存在导致许多故障特征。例如:导致叶片发生共振性增大,使强迫振动响应中不仅有激振频率成分,而且存在高频分量。这就为风机叶片裂纹故障的监测与诊断提供了依据。The 3D solid model of fan blade was established through the CAD software. Then Dynamics finite element analysis software ANSYS to the crack blade. The results indicate that the existence of crack causes many fault feature. For example, the resonance of blade becomes easier and the vibration response has not only basic frequency but also multiplication frequency. It provides the foundation to supervise and diagnose the cracks offan blade.

关 键 词：风机 动力学分析 叶片裂纹 

分 类 号：TH17[机械工程—机械制造及自动化] TP036[自动化与计算机技术]