The prediction of industrial noise and its transmission through metal cladding systems

Windle, RM 1995, The prediction of industrial noise and its transmission through metal cladding systems , PhD thesis, University of Salford.

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Environmental noise is an issue of increasing concern which has resulted in much legislation over recent years. A large proportion of noise complaints arise from industrial and commercial premises. This thesis therefore aims to take a significant step towards the provision of an accurate engineering tool which can assess the potential annoyance of proposed industrial premises. One requires a detailed knowledge of sound fields within buildings, its transmission through building elements, directional radiation and propagation outdoors. All of these areas are the subject of much research internationally. The thesis is therefore split into two parts. Part I reviews the general area of industrial noise prediction. Existing methods are validated and improvements are suggested in many cases. The opinion is formed that the area most in need of detailed research is that of sound transmission through metal cladding systems. Part II tackles this subject in greater depth. The sound reduction of single-leaf cladding systems is measured in order to establish basic properties. This reveals pronounced transmission characteristics which can be explained by detailed analysis of structural vibrations. Complex vibro-acoustic models are forwarded to predict the properties of such materials. Much effort is spent simplifying these predictions, thus yielding accurate engineering methods. Finally the results are applied to commercial double-leaf cladding. This provides solutions for cost-effective product development. It is therefore hoped that a contribution has been made to effectively reducing industrial noise as well as predicting its level.

Item Type: Thesis (PhD)
Schools: Schools > School of Computing, Science and Engineering
Depositing User: Institutional Repository
Date Deposited: 23 Jul 2021 13:59
Last Modified: 27 Aug 2021 21:55

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