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A deterministic model of impact noise transmission through structural connections based on modal analysis

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10.1016/j.jsv.2010.12.019
 
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hdl:2117/27705

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Díaz Cereceda, Cristina
Hetherington, Jack
Poblet-Puig, JordiMés informacióMés informacióMés informació
Rodríguez Ferran, AntonioMés informacióMés informacióMés informació
Document typeArticle
Defense date2011-01-17
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
Vibration transmission through structural connections is modelled in a deterministic way by means of modal analysis. This model is used first to study the effect of elastic joints across the floor in the transmission of impact noise. They are an effective means of reducing impact noise propagation, and can almost eliminate it for small values of the joint stiffness. The method is also used to study the acoustic relevance of studs in lightweight floor transmission. Different ways of modelling the studs are presented and compared. For the examples developed, the best option is to use springs for modelling the studs rather than more complex models involving springs and beams. Also the different behaviour of point and line connections is verified, as well as the influence of the position of the studs.
CitationDíaz-Cereceda, C. [et al.]. A deterministic model of impact noise transmission through structural connections based on modal analysis. "Journal of sound and vibration", 17 Gener 2011, vol. 330, núm. 12, p. 2801-2817. 
URIhttp://hdl.handle.net/2117/27705
DOI10.1016/j.jsv.2010.12.019
ISSN0022-460X
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0022460X10008333
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