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Journal of Aerospace Science and Technology، جلد ۱۱، شماره ۲، صفحات ۵۳-۶۳
عنوان فارسی Optimization of Sound Transmission Loss of a Composite Rectangular Plate with Infinite Baffle
چکیده فارسی مقاله
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عنوان انگلیسی Optimization of Sound Transmission Loss of a Composite Rectangular Plate with Infinite Baffle
چکیده انگلیسی مقاله In this paper, optimization of the sound transmission loss of finite rectangular anisotropic laminated composite plate with simply supported boundary conditions has been developed to maximize transmission loss. Appropriate constraints were imposed to prevent the occurrence of softening effect due to optimization. For this purpose, optimization process was incorporated into comprehensive finite element software. The transmission loss (TL) obtained from the numerical solution was compared with those of other authors indicated good agreement. The discrete frequencies have been chosen based upon the sound transmission class with A-weighting constant. Several traditional composite materials have been studied and the results have shown that in the mass control region, the optimization of stacking sequence and optimal thickness has not been an effective contribution to improve the transmission loss. The results also show that, the lamina thickness optimization has an important effect on improving the transmission loss, but the advantage of low weight composite material is compromised by optimization.
کلیدواژه‌های انگلیسی مقاله optimization,Transmission Loss,Baffle,Composite Panel
نویسندگان مقاله A. nouri |
Shahid Sattary University of Science and Technology

S. Astaraki |
Shahid Sattary University of Science and Technology

نشانی اینترنتی http://jast.ias.ir/article_81584_aef712abbb6baa436c221f66820e783d.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/475/article-475-1192184.pdf
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