大型旋转机械振动现场测试与故障特征分析  

Vibration Measurement and Fault Analysis of Large Scale Rotating Machinery

作　　者：韩清凯[1] 俞建成[1] 宫照民[1] 闻邦椿[1] 武新华[2] 丁千[3] 金宗武[4] 

机构地区：[1]东北大学机械工程与自动化学院,沈阳110004 [2]哈尔滨工业大学动力工程学院,哈尔滨150006 [3]天津大学机械工程学院,天津300010 [4]天津电力公司,天津300010

出　　处：《振动．测试与诊断》2003年第1期10-13,共4页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金重大资助项目 (编号 :19990 5 10 )

摘　　要：为了分析研究旋转机械的故障机理 ,对某发电厂 2 0 0 MW汽轮发电机组的停机过程进行了现场测试。结果表明 ,该机组转子系统具有复杂的振动特性和丰富的故障特征 ,存在明显的非线性故障和多重故障现象。本文基于这些振动测试结果 ,对转子系统的典型故障现象进行归纳 ,对其故障机理进行定性分析。所得实验数据和分析结果对大型旋转机械的动态设计、改造。In order to study the fault mechanisms of rotating machinery,the vibration of a 200MW steam turbine generator in a power plant is measured during running down the generator.Measured results indicate that there exist complex vibrations and various faults.The nonlinear faults and multi-faults are also obvious in the rotor system.In this paper,the fault characteristics and fault mechanisms of the rotor system are analyzed based on the measured vibration data.These measured data and analyzed results are the important guidance in the dynamic design,modification,condition monitoring and operation management of rotating machinery.

关 键 词：旋转机械 振动测试 故障现象 故障机理 

分 类 号：TP206[自动化与计算机技术—检测技术与自动化装置]