@ARTICLE{Chiu_Min-Chie_Shape_2012, author={Chiu, Min-Chie}, volume={vol. 37}, number={No 2}, journal={Archives of Acoustics}, pages={181-188}, howpublished={online}, year={2012}, publisher={Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics}, abstract={Research on acoustical hoods used in industry has been widely discussed; however, the assessment of shape optimization on space-constrained close-fitting acoustic hoods by adjusting design parameters has been neglected. Moreover, the acoustical performance for a one-layer acoustic hood used in a high intensity environment seems to be insufficient. Therefore, an assessment of an optimally shaped acoustical hood with two layers will be proposed. In this paper, a numerical case for depressing the noise level of a piece of equipment by optimally designing a shaped two-layer close-fitting acoustic hood under a constrained space will be introduced. Furthermore, to optimally search for a better designed set for the multi-layer acoustical hood, an artificial immune method (AIM) has been adopted as well. Consequently, this paper provides a quick and effective method to reduce equipment noise by optimally designing a shaped multi-layer close-fitting acoustic hood via the AIM searching technique.}, type={Artykuły / Articles}, title={Shape Optimization of Two-layer Acoustical Hoods Using an Artificial Immune Method}, URL={http://journals.pan.pl/Content/101588/PDF/06_paper.pdf}, doi={10.2478/v10168-012-0024-5}, keywords={Multi-layer, close-fitting acoustical hood, artificial immune method}, }