Please use this identifier to cite or link to this item:
Title: Vibration analysis of a beam with PCLD patch
Authors: Cai, C.
Zheng, H.
Liu, G.R. 
Keywords: Beam
Constraining layer
Passive damping
Issue Date: Nov-2004
Citation: Cai, C., Zheng, H., Liu, G.R. (2004-11). Vibration analysis of a beam with PCLD patch. Applied Acoustics 65 (11) : 1057-1076. ScholarBank@NUS Repository.
Abstract: An analytical approach for vibration response analysis of a beam with single passive constrained layer damping (PCLD) patch is presented. The governing equation of motion of the beam is firstly derived on the basis of an energy approach and the Lagrange equation. The noval contribution is that a third admissible function is introduced to represent the longitudinal displacements of the constraining layer in the PCLD patch when the assumed-modes method is applied for discretizing the governing equation. In conventional analytical approaches, only two admissible functions are used together with a longitudinal static equilibrium equation of a section of base beam or constraining layer. Comparison of the computational results from the proposed analytical approach and the conventional analytical approach as well as a commercial FEM code reveals that the proposed analytical approach can describe the vibration responses. of the damped beam more accurately for commonly used viscoelastic material (VEM) layer in the PCLD patch while the conventional analytical approach, in general, overestimates the damping effects of the PCLD patch. The advantages and disadvantages of the proposed analytical approach and conventional analytical approach are discussed through some case studies. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Applied Acoustics
ISSN: 0003682X
DOI: 10.1016/j.apacoust.2004.05.004
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.