Improving scattering surface design with rapid feedback by integrating parametric models and acoustic simulation

Abstract

Acoustic panels need to be optimal for both acoustic performance and aesthetic values, in order to respond to the requirements of both architects and acousticians. However, current practice shows that there is a gap in interaction between these professionals. Hence, new strategies in enhancing the efficiency of the design should be investigated. This study proposes a new design process for diffusive surfaces by integrating parametric models and acoustic simulation, aiming to provide architects with rapid visual and acoustic feedback. The new process consists of three parts: (1) basic geometric guidelines for diffusive surface design, which give the necessary information to architects with no acoustic background; (2) programming a parametric model of a diffusive surface sample in Rhinoceros, which allows for very quick variations in the design and suits the flexibility required by architects’ design practice; (3) connecting Rhinoceros and a simple ray tracing, which adds acoustic simulation functionality and visual output to facilitate architects’ utilization and feedback comprehension. Finally, a characterization of the scattering coefficient is performed in a scale model based on ISO 17497-1 in order to verify the effectiveness of the new design process.