Structural Engineering and Mechanics
Volume 42, Number 1, 2012, pages 13-24
DOI: 10.12989/sem.2012.42.1.013
On mode localization of a weakly coupled beam system with spring-mass attachments
M. Huang , J.K. Liu , Z.R. Lu
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
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