The Dynamic Analysis and Optimization Technique of Non-Stationary Random Vibration

Zhen Qin; Wen Tao Xu

doi:10.4028/www.scientific.net/AMM.130-134.1348

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 130-134The Dynamic Analysis and Optimization Technique of...

The Dynamic Analysis and Optimization Technique of Non-Stationary Random Vibration

Abstract:

This paper introduces a new non-stationary random vibration technique for the analysis of time-dependent random vibration systems. It is based on the pseudo-excitation method (PEM) and precise integration method (PIM), which is extended herein and can improve significantly the analysis efficiency. Based on the random vibration equations with the right-hand side random replaced by a pseudo excitation, the first and second orders of sensitivity formulae are calculated conveniently by differentiating these equations. By use of sensitivity information, the optimization of complicated random vibration can be performed easily. Some numerical examples of vehicle-bridge time-dependent coupled system show the effectiveness and accuracy of present method.

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Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

1348-1351

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.1348

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Online since:

October 2011

Authors:

Zhen Qin, Wen Tao Xu

Keywords:

Dynamic Response, Non-Stationary Vibration, Pseudo-Excitation Method

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References

[1] C. YK, A. FTK, Z. DZ, et al. Vibration of multi-span non-uniform bridges under moving vehicle and train by using modified vibration function. Sound andVibration, 228(3): 611-628, (1999).

DOI: 10.1006/jsvi.1999.2423

Google Scholar

[2] S. MK, N. HC, C. CK. A new three-dimensional finite element analysis model of high speed-train-bridge interaction. Engineering Structures, 25(13): 1611-1626, (2003).

DOI: 10.1016/s0141-0296(03)00133-0

Google Scholar

[3] A. FTK, W. JJ, C. YK. Impact study of cable-stayed railway bridge with random rail irregularities. Engineering Structures, 24(5): 529-541, (2002).

DOI: 10.1016/s0141-0296(01)00119-5

Google Scholar

[4] L. JH, L. X, Z. WX. Dynamic Response of Jacket Platform to Random Waves. In: Schreffes, Zienkiewicz, editors. Computer Modeling in Ocean Engineering. New York: Taylor and Francis, Inc. 539-545, (1988).

Google Scholar

[5] Z. WX, W. FW. A precise time step integration method. Journal Mechanic Engineering Science, Proceedings of the Institution of Mechanical Engineers, Part C, 208(C6): 427-430, (1994).

DOI: 10.1243/pime_proc_1994_208_148_02

Google Scholar

[6] X. WT, L. JH, Z. YH, K. D and W. FW. Pseudo-excitation-method-based sensitivity analysis and optimization for vehicle ride comfort. Engineering Optimization, 41(7): 699-711, (2009).

DOI: 10.1080/03052150902752066

Google Scholar

[7] Y. ZS. Vehicle theory. Beijing: Chia machine Press, (2000).

Google Scholar

[8] Z. ZC, Z. Y and L. JH. Non-stationary random vibration analysis for vehicle-bridge coupled systems. Journal of vibration Engineering, 20(5): 439-446, (2007).

Google Scholar