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Title: A study of power transmission through a finite periodic dual-layer beam structure with transverse connection
Authors: Yun, Y
Mak, C 
Keywords: Coupled longitudinal-flexural wave
Cross-layer transmission
Dual-layer beam
Periodic structure
Issue Date: 2013
Publisher: Multi-Science Publ Co Ltd
Source: Journal of low frequency noise vibration and active control, 2013, v. 32, no. 3, p. 177-188 How to cite?
Journal: Journal of Low Frequency Noise Vibration and Active Control 
Abstract: A study of the structure-borne sound power transmission through a finite periodic dual-layer beam structure with connection branches was conducted. The results suggest that the power transmitted through the beam structure into the supporting structure depends not only on the characteristics of the source and the supporting structure, but also on the attenuation of the periodic beam elements with the coupling branches and the exciting position of the source. The results also reveal the model under the mono-coupling condition to be similar to that under the multi-coupling condition in the relatively low frequency region. The transmitted power was strongly attenuated in a number of frequency regions, and in a few regions the power was even transmitted into the second layer of the supporting structure. The analysis indicated that this study is useful in understanding the structure-borne sound transmission from the first layer into the second layer of the beam structure.
ISSN: 0263-0923
DOI: 10.1260/0263-0923.32.3.177
Appears in Collections:Journal/Magazine Article

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