Wind-Induced Noise of Perforated Architectural Panels

Aercoustics工程有限公司（Aercoustics）和多伦多大学的Alis Ekmekci教授正在开展一项研究合作，研究穿孔和开槽板的风致噪声。这种嵌板通常用作建筑物外立面的建筑特色，对邻近社区和建筑物本身的居民都可能对当地的噪音环境产生不利影响。通过这些面板开口的风会产生巨大的音调噪音，这些噪音被描述为嚎叫或嗡嗡声。在纽约的世界贸易中心一号楼和英国曼彻斯特的比瑟姆大厦等建筑上都能观察到这种噪音，据报道，这些建筑的噪音在300米外都能听到。随着建筑建筑师越来越多地使用这些面板，以及像土耳其伊斯坦布尔的Agaoglu Maslak 1453这样的大型开发项目，几乎所有的表面都覆盖着这些面板，了解噪音产生背后的机制并开发出具有成本效益的方法来减轻噪音是非常有价值的。本研究将研究入射风与不同面板几何形状的相互作用，利用有助于在UTIAS消声风洞中测量噪声和流动的方法。结果将提供对噪音的潜在机制和改变面板开口几何形状的影响的深入了解。这项研究不仅对这些建筑的公众和居民很重要，对他们来说噪音是一种烦恼，而且对在设计中实施噪音的制造商和建筑师也很重要。Aercoustics是一家专业的声学咨询公司，在建筑和环境噪声领域开展广泛的工作。通过这次合作，了解建筑穿孔板的空气声学，将使他们在进行建筑设计时提供更有价值和更全面的服务。加拿大和许多其他国家都制定了环境噪音准则来控制噪音，确保社区和居住场所适合居住。本研究的结果可以帮助**减少噪音污染，保护我们城市的噪音环境。

Aercoustics Engineering Limited (Aercoustics) and Prof. Alis Ekmekci from the University of Toronto are**initiating a research collaboration to investigate wind-induced noise of perforated and slotted panels. Such**panels are very commonly used as architectural features on building facades and can have an adverse impact on**the local noise environment, both for the neighbouring community and for inhabitants of the building itself.**Wind passing through the openings of these panels is known to generate loud tonal noises, which have been**described as howling or humming. This has been observed on buildings such as One World Trade Centre in**New York City and Beetham Tower in Manchester, UK, where noise is reportedly heard up to 300 metres**away. With increased use of these panels by building architects and massive developments like the Agaoglu**Maslak 1453 in Istanbul, Turkey, where nearly every surface is covered in them, understanding the mechanisms**behind noise generation and developing cost-effective means to mitigate it are very valuable. This research will**investigate the interaction of the incident wind with various panel geometries, utilizing methodologies that**facilitate measurements of both noise and flow visualization in the UTIAS anechoic wind tunnel. Results will**provide insight into the underlying mechanisms of noise and the impacts of varying the geometry of the panel**openings. The research is not only important to the public and residents of these buildings, to which the noise is**an annoyance, but to the manufacturers and architects who implement them in designs. Aercoustics is a**specialized acoustic consulting firm that works extensively in the areas of architectural and environmental**noise. Understanding the aeroacoustics of architectural perforated panels through this collaboration will allow**them to provide more valuable and comprehensive services when doing architectural designs. Canada along**with many other countries has established environmental noise guidelines to control noise and ensure**communities and inhabited places are desirable for living. Outcomes of this research can only serve to help**reduce noise pollution and protect the noise environment in our cities.