Lack of diffuseness in wave propagation in lightweight joist-floors

Jonas Brunskog (Invited author), Hyuck Chung (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch


It is common to assume the wave field to be diffuse in often used simplified calculation procedures in building acoustics, such as Statistical Energy Analysis (SEA) or energy flow methods. It is a well known that such diffuseness assumption is not always valid. This paper presents one such example. The structures under consideration are rib-reinforced plate structures. These may be a lightweight floor/joist structure in a building or hull of a ship. The diffuseness or rather the lack of diffuseness, in such 'ribbed-plate' structures is examined. The amount of power transported at an angle is calculated by means of the structural intensity in that direction
Original languageEnglish
Title of host publicationInter-Noise 2007
Publication date2007
Publication statusPublished - 2007
Event36th International Congress and Exhibition on Noise Control Engineering - Istanbul, Turkey
Duration: 28 Aug 200731 Aug 2007
Conference number: 36


Conference36th International Congress and Exhibition on Noise Control Engineering

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