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A wooden acoustic shell for open-air chamber music concert

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This paper presents the acoustic design process of an acoustic shell for open-air Chamber Music concert, which we refer to as Resonant String Shell (ReS). Each and every part of the shell is made of timber and reversible joints with no glue, thus allowing a simple manufacturing, a sustainable process and a cost effective structure. A sophisticated digital form finding process lays behind such a technologic simplification. It is performed through parametric modelling tools and a multi-objective optimisation algorithm. Geometrical acoustical parameters, such as the number of second-order reflections, are first analysed through image sources technique, and then the Pareto-front of the most performing solutions is displayed. The chosen results are then sent to a more complete acoustical analysis software. Measurements performed on-site demonstrate the quality of the optimization process for both audience and musicians.
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Keywords: Acoustics; Computational design; Experimental research; Impulse response measurements; Multi-objectives optimization; ReS Team; Room Acoustics; Timber structure

Document Type: Research Article

Affiliations: 1: DiARC, Department of Architecture, University of Naples “Federico II” 2: Gridshell.it , Vicolo della Quercia 1 – 80134 NAPOLI, Email: [email protected] 3: Buro Happold Engineers, London (UK)

Publication date: August 20, 2015

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  • The Proceedings of IASS Annual Symposia include the articles presented at each symposium. They are grouped by thematic sessions. These limited-length conference papers are reviewed and selected by the Scientific or Technical Committee of each symposium, and generally only those actually presented orally at the conference are included. Although the metadata for the papers is available to the public, only members of the IASS can view the full papers, for which the author(s) hold the copyright. Further information about the projects or research should be sought from the author(s).
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