作者:郭艳玲,邱枫,李志鹏
Authors:\n\tGUO Yan-ling,QIU Feng,LI Zhi-peng\n
摘要:摘要:旋转机械扭振是影响旋转机械工作可靠性和使用寿命的主要因素之一，近年来由于扭振引起的大型机组事故日益增多，因此如何检测扭振成为机械行业一大重点。扭振的检测过程可分为扭振信号的测量和扭振信号的提取分析这两个步骤。将扭振信号的测量方法分为接触式测量法和非接触式测量法两类，将扭振信号的提取分析方法分为基于傅里叶变化法和基于信号分解法两类，并对这几类方法中的具体每种方法进行了介绍，详细地阐述了每种方法的工作原理、研究意义、实际应用以及优缺点，最后对这几类方法的发展趋势进行了展望，希望对今后的旋转机械扭振检测方法的研究起到一定的参考和指导作用。
Abstract:Abstract:Torsional vibration of rotating machinery is one of the main factors affecting the reliability and service life of rotaing machinery. In recent years, the number of large units accidents caused by torsional vibration is increasing. Therefore, how to detect torsional vibration has become a major focus in the machinery increasing.The process of torsional vibration of detection method can be divided into two steps: the measurement of torsional vibration signals and the extraction and analysis of torsional vibration signal. The measurement methods of torsional vibration signal are divided into contact measurement method and non-contact measurement method. The extraction and analysis methods of torsional vibration signal are divided into Fourier transform method and signal decomposition method. We introduce each method of these methods, espound in detail the woking principle, reaserch significance, practical application, advantages and disadvantages of each methods, and finally forecast the development trend of these methods. It is expected to provide some reference and guidance for the future research on torsional vibration detection methods of rotating machinery

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