Analyze on a Coupled Beam Vibration System by FEM (II): Case Study

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From the article of Analyze on a coupled beam vibration system by FEM (I): theory, equation of motion of the beam system with attachments is established by conventional finite element method, and some parameters, such as natural frequencies, associated mode shapes, are obtained. The mode localization and frequency loci veering phenomena of a weakly coupled beam system with multiple spring-mass systems are investigated. Studies show that for weakly coupled beam system with attachments, the mode localization and loci veering will occur once there is a disorder in the system.

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285-290

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May 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Z.R. Lu, J.K. Liu, and M. Huang: Mode Localization and frequency loci veering in a disordered coupled beam system, Structural Engineering and Mechanics, an International Journal, Vol. 24(2006), pp.493-508.

DOI: 10.12989/sem.2006.24.4.493

Google Scholar

[2] C. Pierre, D.M. Tang and E.H. Dowell: Localized vibrations of disordered multispan beams: Theory and experiment, AIAA J. Vol. 25(1987), pp.1249-1257.

DOI: 10.2514/3.9774

Google Scholar

[3] H. Qiao, Q.S. Li, and G.Q. Li: Vibratory characteristics of flexural non-uniform Euler-Bernoulli beams carrying an arbitrary number of spring-mass systems, International Journal of Mechanical Sciences Vol. 44(2002), pp.725-743.

DOI: 10.1016/s0020-7403(02)00007-3

Google Scholar

[4] J.J. Wu, A.R. Whittaker: The natural frequencies and mode shapes of a uniform cantilever beam with multiple two-dof spring-mass systems, Journal of Sound and Vibration Vol. 220(1999), pp.451-468.

DOI: 10.1006/jsvi.1999.2324

Google Scholar

[5] J.J. Wu: Free vibration analysis of beams carrying a number of two-degree-of-freedom spring-mass systems, Finite Element Analysis and Design Vol. 40(2004), pp.363-381.

DOI: 10.1016/s0168-874x(03)00052-0

Google Scholar

[6] J. -S. Wu, H. -M. Chou: Free vibration analysis of a cantilever beams carrying any number of elastically mounted point masses with the analytical-and-numerical-combined method, Journal of Sound and Vibration Vol. 213(1998), pp.317-332.

DOI: 10.1006/jsvi.1997.1501

Google Scholar