کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11031431 | 1645994 | 2019 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sound absorption by rubber coatings with periodic voids and hard inclusions
ترجمه فارسی عنوان
جذب صدا توسط پوشش لاستیکی با حفره های دوره ای و ورودی های سخت
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
Sound absorption by viscoelastic coatings for underwater applications comprising both periodically distributed voids and hard inclusions is presented. Using effective medium theory, each layer of gratings is approximated as a homogeneous medium with effective material and geometric properties, in which the monopole and dipole resonances of the inclusions are taken into account. A finite element model of the periodically distributed voided and hard inclusions in the host rubber medium is also developed. The different combinations of the layers are shown to have markedly different impacts on the acoustic performance, whereby the physical mechanisms governing sound absorption are strongly dependent on the Fabry-Pérot and dipole resonances associated with the presence of the inclusions. The effects of water backing or a steel backing plate are also shown to significantly affect the acoustic performance for the different layers of inclusions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Acoustics - Volume 143, 1 January 2019, Pages 200-210
Journal: Applied Acoustics - Volume 143, 1 January 2019, Pages 200-210
نویسندگان
Gyani Shankar Sharma, Alex Skvortsov, Ian MacGillivray, Nicole Kessissoglou,