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A performance-based optimization approach for diffusive surface topology design

机译：基于性能的漫射表面拓扑设计的优化方法

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Different numerical techniques have been used in the last decades for the acoustic characterization and performance optimization of sound diffusive surfaces. However, these methods require very long calculation times and do not provide a rapid feedback. As a result, these methods can hardly be applied by designers at early stages of the design process, when successive design iterations are necessary from an aesthetic point of view. A suitable alternative could be the use of parametric modeling in combination with performance investigations during the design process of sound diffusive surfaces. To this aim, this study presents a design process for diffusive surfaces topology optimization based on the combination of parametric models and geometrical acoustic simulations. It aims to provide architects and designers with rapid visual feedback on acoustic performances at a preliminary stage of the design process. The method has been tested on different case studies, which have been modelled based on geometric guidelines for diffusive surface optimization. The sensitivity of the method showed that it could be a very useful tool for comparisons among surface design alternatives. Finally, the advantages and limitations of the integrated optimization in comparison with conventional optimizations are discussed.
机译：最后几十年来使用不同的数值技术，用于声音扩散表面的声学表征和性能优化。但是，这些方法需要很长的计算时间，并且不提供快速反馈。结果，当来自设计过程的早期阶段时，这些方法可以在设计过程的早期阶段应用，当审美的观点来看，设计过程的早期阶段。合适的替代方案可以是在声音扩散表面的设计过程中结合使用参数化建模。为此目的，本研究提出了一种基于参数模型和几何声学模拟的组合的扩散表面拓扑优化的设计过程。它旨在为建筑师和设计者提供关于设计过程的初步阶段的关于声学性能的快速视觉反馈。该方法已经在不同的案例研究中进行了测试，该研究已经基于用于扩散表面优化的几何指南进行建模。该方法的灵敏度表明，在表面设计替代方案中的比较可能是一个非常有用的工具。最后，讨论了与传统优化相比的集成优化的优点和局限。

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