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您的检索式：作者名="Zou Jianchen"
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| 1 | APPLICATION OF WAVELET TIME-FR EQUENCY ANALYSIS TO IDENTIFICA-TION OF CRACKED ROTOR显示文摘Based on the simple hinge crack model and the local flexibility theorem ,the corresponding dynamic equation of the cracked rotor is modelled,the numerical simulation solutions of the cracked rotor and the uncracked rotor are obtained,By the continuous wavelet time-frequency transform,the wavelet time-frequecney properties of the uncracked rotor and the cracked rotor are discussed, A new detection algorithm that uses the wavelet time-frequency transform to identify the crack is proposed.The influence of the sampling frequency on the wavelet time-frequency transform is analyzed by the numerical simulation research .The valid sampling frequency is suggested ,Experiments demonstrate the validity and avaliability of the proposed algorithm in identification of the cracked rotor for engi-neering practices. | Zou JianChen JinPu YapengGeng ZunminState Key Laboratory of Vibration,Shock & Noise,Shanghai Jiaotong University,Shanghai 200030, China | 2003 | Chinese Journal of Mechanical Engineering2003，16，1： | 2 |
| 2 | A new class of scrambling transformation and its application in the image information covering显示文摘 | Qi Dongxu Zou Jianchen Han Xiaoyou | 2000 | Science in China (Series E)2000，43，3： | 1 |
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