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This study employed the time-frequency analysis to compute some of the XJTU-SY bearing datasets which are supported by the Institute of Design Science and Basic Component at XiĄŻan Jiaotong University (XJTU), Shaanxi, P.R. China and the Changxing Sumyoung Technology Co., Ltd. (SY), Zhejiang, P.R. China [1].
Time-frequency analysis owns the benefits of the obvious presentation of the fundamental and harmonic components of a segment of a signal. Therefore, some problems of the rolling elements can be detected by this analysis because of the periodic touches in the disordered place of the rotation of the roller.
Therefore, we propose the method of time-frequency analysis to be the pre-processing for validating prognostics algorithms of rolling element bearings.
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