Structural Engineering and Mechanics

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On mode localization of a weakly coupled beam system with spring-mass attachments

  • Huang, M. (Research Center of Intelligent Transportation System, Sun Yat-sen University) ;
  • Liu, J.K. (Department of Applied Mechanics and Engineering, Sun Yat-sen University) ;
  • Lu, Z.R. (Department of Applied Mechanics and Engineering, Sun Yat-sen University)
  • Received : 2009.12.28
  • Accepted : 2012.02.27
  • Published : 2012.04.10
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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.

Keywords

References

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