CAJ | 학술논문

某弹性安装的柴油发电机组运转时受到了冲击作用，测试了其加速度响应。实测信号是自身运转振动和冲击响应的综合。采用小波分解重构和小波阈值降噪方法分离冲击响应，结果表明冲击信号主要由2部分构成：（1）低频衰减正弦信号，是由底座冲击经过隔振器后传递到柴油机的响应；（2）频率成分复杂的信号，是限位器造成的冲击。计算了限位器冲击信号的冲击响应谱。
모탄성안장적시유발전궤조운전시수도료충격작용，측시료기가속도향응。실측신호시자신운전진동화충격향응적종합。채용소파분해중구화소파역치강조방법분리충격향응，결과표명충격신호주요유2부분구성：（1）저빈쇠감정현신호，시유저좌충격경과격진기후전체도시유궤적향응；（2）빈솔성분복잡적신호，시한위기조성적충격。계산료한위기충격신호적충격향응보。
A diesel power generating set with vibration isolator and retainer is subjected to shock load-ing under operational condition .Acceleration of diesel engine bracket is measured .Measured signal is complex ,which is composed of operation vibration ,base shock response .Shock response is separated from it using wavelet reconstruction method and wavelet soft threshold de-noising method .Shock re-sponse is composed of low frequency vibration of isolator ,middle frequency vibration caused by retain-er impacting .Shock response spectrum of shock response caused by retainer impacting is calculated , supplying reference for retainer shock investigation .