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摘要:The quality of measured vibration response signals is adversely affected by noise in modal testing. This situation often leads to serious difficulties in estimating the modal parameters with proper accuracy. This paper presents a signal de-noising method for measured impulsive response functions(IRFs) based on structured low rank approximation(SLRA) so as to improve the accuracy of the modal parameters identification. The proposed method is verified by simulation study of a cantilever beam. The results show that this method can eliminate noise from measured IRFs efficiently, and significant improvement in modal parameters estimation could be obtained based on the filtered IRFs.
会议名称:

2017 2nd International Conference on Applied Mechanics, Electronics and Mechatronics Engineering(AMEME 2017)

会议时间:

2017-10-22

会议地点:

中国北京

  • 专辑:

    工程科技Ⅱ辑

  • 专题:

    工业通用技术及设备

  • 分类号:

    TB53

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