Modal Parameter Global Identification Weighting with Complete Modal Shapes

Gu Liang; Pan Xufeng; Hu Qiqi

doi:10.13374/j.issn1001-053x.1994.06.012

Volume 16 Issue 6

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Gu Liang, Pan Xufeng, Hu Qiqi. Modal Parameter Global Identification Weighting with Complete Modal Shapes[J]. Chinese Journal of Engineering, 1994, 16(6): 561-566. doi: 10.13374/j.issn1001-053x.1994.06.012

Citation:

Gu Liang, Pan Xufeng, Hu Qiqi. Modal Parameter Global Identification Weighting with Complete Modal Shapes[J]. Chinese Journal of Engineering, 1994, 16(6): 561-566. doi: 10.13374/j.issn1001-053x.1994.06.012

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Modal Parameter Global Identification Weighting with Complete Modal Shapes

doi: 10.13374/j.issn1001-053x.1994.06.012

1. Department of Mechanical Engineering, USTB, Beijing 100083, PRC;
2. Vehicle Department of Beijing Institute of Tech Beijing 100081, PRC

Received Date: 1993-04-12
Available Online: 2021-11-13

Abstract

Abstract

A concept of global frequency response function(GFRF) has been presented.The MIMO modal parameter identification modal has been established,based on the weighting sum of modal shape squares.The analytical results of artificial example show that the proposed method has the advantages of accuracy,consistency,separating closely-spaced modes and eliminating random noise.This method can be used for experimental modal analysis of large or complicated structure.
- modal parameter,
- identification,
- test modal analysis