【摘要】 介绍了间隙激振的机理，论述了间隙激振研究的历史、现状和发展趋势，对其待点，识别和消除方法进行了详细讨论并给出实例，以期引起各方面的高度重视．更多还原

【Abstract】 The mechanism of clearance exciting was presented in the paper. the history, present status and development trend of clearance exciting research were described. It’s features and methods of distinguishing and eliminating were discussed. and some examples were given in order to pay great attention.更多还原