【摘 要】
：
Due to the fact that most fault vibration signals of the rotating machinery present non-stationary and nonlinear properties, and these nonlinear vibration signals contain a wealth of fault information
【机 构】
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School of Mechanical and Electronic Engineering.Wuhan University of Technology,Wuhan 430070,China
【出 处】
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The Third International Conference on Dynamics,Vibration and
论文部分内容阅读
Due to the fact that most fault vibration signals of the rotating machinery present non-stationary and nonlinear properties, and these nonlinear vibration signals contain a wealth of fault information.The traditional FFT loses its physical meaning to process the signals in a large extent, so it is essential to adopt the time-frequency analysis method.Widely used methods of time-frequency analysis contain windowed Fourier transform.
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