Keynote Address, National Academy of Engineering Workshop: Advances in Noise Control Engineering, October 19 and 20, 2021


Stuart Bolton, with Purdue University’s Ray W. Herrick Laboratories, presented keynote remarks about modern trends in noise control materials, from architectured to nano. He expressed some of his own views about important factors for consideration, and shared highlights from a spring 2021 Purdue symposium on poro-elastic materials. From a manufacturer’s perspective, cost is usually the most important factor associated with a noise control material, followed by safety, weight, volume, recyclability, and so-called “embedded energy,” with acoustical performance very low on the list. Cost-effectiveness is therefore a critical consideration, along with other factors such as efficiency in terms of space and weight, in developing practical and effective acoustical treatments.


Acoustical materials, Metamaterials, Sound absorption, Noise Control


Acoustics and Noise Control

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