轴承
軸承
축승
BEARING
2015年
6期
56-61
,共6页
滚动轴承%故障诊断%振动机理%量纲一化
滾動軸承%故障診斷%振動機理%量綱一化
곤동축승%고장진단%진동궤리%량강일화
rolling bearing%fault diagnosis%vibration mechanism%dimensionless
滚动轴承早期故障存在特征不明显、信号微弱、信噪比低、故障难以识别等特点。根据轴承振动机理和频率特性，从发展现状和常用方法2个方面阐述了滚动轴承早期故障诊断的基本情况，并对基于量纲一化指标的滚动轴承早期故障诊断方法进行了详细论述。最后总结了滚动轴承早期故障诊断所面临的问题，并对其发展趋势进行了展望。
滾動軸承早期故障存在特徵不明顯、信號微弱、信譟比低、故障難以識彆等特點。根據軸承振動機理和頻率特性，從髮展現狀和常用方法2箇方麵闡述瞭滾動軸承早期故障診斷的基本情況，併對基于量綱一化指標的滾動軸承早期故障診斷方法進行瞭詳細論述。最後總結瞭滾動軸承早期故障診斷所麵臨的問題，併對其髮展趨勢進行瞭展望。
곤동축승조기고장존재특정불명현、신호미약、신조비저、고장난이식별등특점。근거축승진동궤리화빈솔특성，종발전현상화상용방법2개방면천술료곤동축승조기고장진단적기본정황，병대기우량강일화지표적곤동축승조기고장진단방법진행료상세논술。최후총결료곤동축승조기고장진단소면림적문제，병대기발전추세진행료전망。
The early fault of rolling bearings are characterized with unobvious feature,weak signal,low signal-to-noise ratio and difficult fault identification.According to vibration mechanism and frequency characteristics of bearings, the basic information about early fault diagnosis for rolling bearings are described from two aspects of development status and common methods,the early fault diagnosis method for rolling bearings are discussed in detail based on dimension-less indicators.Finally,the problems about early fault diagnosis for rolling bearings are summarized,and its develop-ment tendency is prospected.
