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Modal identification based on Hilbert-Huang Transform of structural response with SVD preprocessing

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Abstract

In recent years, Empirical mode decomposition and Hilbert spectral analysis have been combined to identify system parameters. Singular-Value Decomposition is proposed as a signal preprocessing technique of Hilbert-Huang Transform to extract modal parameters for closely spaced modes and low-energy components. The proposed method is applied to a simulated airplane model built in Automatic Dynamic Analysis of Mechanical Systems software. The results demonstrate that the identified modal parameters are in good agreement with the baseline model.

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Authors and Affiliations

  1. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China

    Min Zheng, Fan Shen, Yuping Dou & Xiaoyan Yan

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  1. Min Zheng
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  2. Fan Shen
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  3. Yuping Dou
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  4. Xiaoyan Yan
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Correspondence to Min Zheng.

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Zheng, M., Shen, F., Dou, Y. et al. Modal identification based on Hilbert-Huang Transform of structural response with SVD preprocessing. Acta Mech Sin 25, 883–888 (2009). https://doi.org/10.1007/s10409-009-0289-8

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  • DOI: https://doi.org/10.1007/s10409-009-0289-8

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