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Sound Transmission through Double Panels Using Statistical Energy Analysis
A.J. Price,Malcolm J. Crocker +1 more
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In this article, a statistical energy analysis is used to study the transmission of random-incidence sound waves through two independent panels separated by an air space, where the cavity is considered to behave as a resonant system and its modal density and loss factor are determined, analytically.Abstract:
Statistical energy analysis is used to study the transmission of random‐incidence sound waves through two independent panels separated by an air space. The analytical model consists of five linearly coupled oscillators arranged, room‐panel‐cavity‐panel‐room. Both nonresonant and resonant transmission for the panels are included. The cavity is considered to behave as a resonant system and its modal density and loss factor are determined, analytically. Absorption material is placed around the edges of the cavity. The sound energy transmitted is found to be strongly dependent upon the radiation resistance of the panels, the panel spacing, and the panel and cavity loss factors. Agreement between the theoretical results and experiments for several different double panel systems is found to be good.read more
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Workability, and mechanical, acoustic and thermal properties of lightweight aggregate concrete with a high volume of entrained air
TL;DR: In this paper, the effects of lightweight aggregates and entrained air on the flow characteristics, density, porosity, compressive strength, and dynamic elastic modulus of the concrete were investigated.
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Physically Based Real-Time Auralization of Interactive Virtual Environments
Dirk Schröder,Michael Vorländer +1 more
TL;DR: The design and implementation of the real-time room acoustics simulation software RAVEN will be described, which is a vital part of the implemented 3D sound-rendering system of RWTH Aachen University’s immersive VR-system.
Journal ArticleDOI
Vibroacoustic behavior of clamp mounted double-panel partition with enclosure air cavity
TL;DR: A double Fourier series solution to the dynamic response of the structure is obtained by employing the weighted residual method and can be considered as the exact solution of the problem, as the structural and acoustic-structural coupling effects are fully accounted for and the solution converges numerically.
Journal ArticleDOI
Prediction of transmission loss of double panels with a patch-mobility method
TL;DR: Transmission loss predicted with a patch-mobility method is compared with measurements and a convergence criterion of the model is given.
Journal ArticleDOI
Sound transmission through double leaf lightweight partitions part I: airborne sound
TL;DR: In this paper, the authors used statistical energy analysis (SEA) to model sound transmission through double leaf partitions and found that the best SEA model depends on the frequency range considered and the method of construction.