Sound absorption performance of various nickel foam-base multi-layer structures in range of low frequency

作     者：Wei CHENG Cui-yun DUAN Pei-sheng LIU Miao LU 程伟;段翠云;刘培生;卢淼

作者机构：College of Nuclear Science and Technology Beijing Normal University Beijing 100875 China 

基　　金：Project (C16) supported by the Testing Foundation of Beijing Normal University China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2017年第27卷第9期

页      码：1989-1995页

摘      要：Commercial3D reticular nickel foam and its composite structure were investigated on the sound absorption *** absorption performance of foam plates1?5layers(1-layer thickness:2.3mm;porosity:89%;average pore-diameter:0.57mm)was found to be poor,and could be improved by adding backed cavum or front perforated thin *** absorption coefficient could reach about0.4at1000-1600Hz for the composite structure of5-layer foam with a backed5mm-thick cavum,and even0.68at about1000Hz for that of2-layer foam with the same cavum and a perforated plate closely in front of the foam.

主 题 词：reticular metal foam reticular nickel foam composite structure for sound absorption low frequency sound absorption 

学科分类：07[理学] 070205[070205] 08[工学] 080501[080501] 080502[080502] 0805[工学-能源动力学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1016/S1003-6326(17)60223-1

馆 藏 号：203263579...