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

Windle, RM

Abstract

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.

Citation

Windle, R. The prediction of industrial noise and its transmission through metal cladding systems. (Thesis). University of Salford

• Thesis Type: Thesis
• Deposit Date: Jul 23, 2021
• Award Date: Jul 1, 1995