水力发电学报2012，Vol.31Issue(2)：251-257,7.
水电机组轴系统实测振动分析及动态参数识别
Prototype vibration test and dynamic parameter identification of a generator set shaft system
摘要
Abstract
Prototype tests were conducted for a generator set and the results were evaluated.Since the operation of this large generator set is continuous and shaft oil-film exists only when the unit is operating,application of an effective excitation to the shaft system is difficult.In this work,a time-domain identification method of modal parameters was adopted to study the shaft self-vibration features.This is a multiple signal classification method for the identification,while the traditional method has limitations in many cases such as few test cases or few test points.In the new method,the dynamic parameters of shaft oil-film are used for identification.The identification results were verified by FEM numerical simulation,and the method offers an effective tool for vibration response analysis.关键词
水轮发电机组/机组轴系统/参数识别/模态/油膜/动态特性Key words
hydroelectric unit/shaft system/parameters identification/modal/oil-film/dynamic characteristics分类
信息技术与安全科学引用本文复制引用
宋志强,刘云贺,马震岳..水电机组轴系统实测振动分析及动态参数识别[J].水力发电学报,2012,31(2):251-257,7.基金项目
国家自然科学基金 （）
辽宁省教育厅重点实验室科研项目资助项目 （）
