The Contrast Experimental Study on Operational Modal Analysis of Ship Structural Model

Jun Chen Xu; Ming Hong; Hong Yu Cui

doi:10.4028/www.scientific.net/AMM.226-228.241

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 226-228The Contrast Experimental Study on Operational...

The Contrast Experimental Study on Operational Modal Analysis of Ship Structural Model

Abstract:

A ship is a large and multifunctional marine structure operating on the sea. In practice, the environmental noise on a ship has many complicated components and they influence the vibration of the ship structure. Besides the stochastic excitations such as waves and winds, there are also propeller- and host-induced harmonic excitations. In this paper, NExT/ERA algorithm program and a ship model have been made to realize the modal parameters identification of ship structure in the presence of both white noise and harmonic excitations. Moreover, whether the signal filtering technology has a great effect on the results of modal analysis is discussed. In order to study and analyze the influence of the harmonic excitations, experiments under different signal-to-noise ratio (SNR) conditions have been carried out. This has a guiding significance to the engineering practice.

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Periodical:

Applied Mechanics and Materials (Volumes 226-228)

Pages:

241-246

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.226-228.241

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Online since:

November 2012

Authors:

Jun Chen Xu, Ming Hong, Hong Yu Cui

Keywords:

Ambient Excitation, ERA, Filtering, Modal Parameter Identification, NExT, SNR

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References

[1] G.H. James, T.G. Carne and J.P. Lauffer: Journal of Analytical and Experimental Modal Analysis, Vol. 10 (1995) No. 4, p.206.

Google Scholar

[2] S.R. Ibrahim, E.C. Mikulcik: The Shock and Vibration Bulletin, Vol. 47 (1977) No. 4, p.183.

Google Scholar

[3] D.L. Brown, R.J. Allemang, R. Zimmerman and M. Mergeay: Seventh International Seminar on Modal Analysis (Belgium, 1985).

Google Scholar

[4] J.N. Juang, R.S. Pappa: Journal of Guidance, Control, and Dynamics, Vol. 8 (1985) No. 5, p.620.

Google Scholar

[5] D.Z. Jiang, M. Hong, L. Zhou: Chinese Journal of Ship Research, Vol. 5 (2010) No. 3, p.22.

Google Scholar

[6] S.R. Ibrahim: AIAA Journal, Vol. 21 (1983) No. 3, p.446.

Google Scholar

[7] J.N. Juang, R.S. Pappa: Journal of Guidance, Control, and Dynamics, Vol. 9 (1986) No. 3, p.294.

Google Scholar

[8] R.S. Pappa, K.B. Elliott: Journal of Guidance, Control, and Dynamics, Vol. 6 (1993) No. 5, p.852.

Google Scholar