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Structural Engineering and Mechanics Volume 42, Number 1, April10 2012 , pages 13-24 DOI: https://doi.org/10.12989/sem.2012.42.1.013 |
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On mode localization of a weakly coupled beam system with spring-mass attachments |
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M. Huang, J.K. Liu and Z.R. Lu
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| Abstract | ||
| There are a large number of papers in the literature dealing with the free vibration analysis of single/multi-span uniform beam with multiple spring-mass systems, but that of coupled multi-span beams carrying spring-mass attachments is rare. In this note, free vibration analysis of a weakly coupled beam system with spring-mass attachments is conducted. The mode localization and frequency loci veering phenomena of the coupled beam system are investigated. Studies show that for weakly coupled beam system with spring-mass attachments, the mode localization and frequency loci veering will occur once there is a disorder in the system. | ||
| Key Words | ||
| vibration; coupled beam system; mode localization; frequency loci veering | ||
| Address | ||
| M. Huang: Research Center of Intelligent Transportation System, Sun Yat-sen University, Guangzhou, Guangdong Province, 510006, P.R. China J.K. Liu and Z.R. Lu: Department of Applied Mechanics and Engineering, Sun Yat-sen University, Guangzhou, Guangdong Province, 510006, P.R. China | ||