Investigation of locally resonant absorption and factors affecting the absorption band of a phononic glass

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	Investigation of locally resonant absorption and factors affecting the absorption band of a phononic glass
	Chen M(陈猛); Jiang H(姜恒); Feng YF; Wang YR(王育人); Wang, YR (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
发表期刊	APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
	2014-12
卷号	117 期号:4 页码:2067-2072
ISSN	0947-8396
摘要	We experimentally and theoretically investigated the mechanisms of acoustic absorption in phononic glass to optimize its properties. First, we experimentally studied its locally resonant absorption mechanism. From these results, we attributed its strong sound attenuation to its locally resonant units and its broadband absorption to its networked structure. These experiments also indicated that the porosity and thickness of the phononic glass must be tuned to achieve the best sound absorption at given frequencies. Then, using lumped-mass methods, we studied how the absorption bandgaps of the phononic glass were affected by various factors, including the porosity and the properties of the coating materials. These calculations gave optimal ranges for selecting the porosity, modulus of the coating material, and ratio of the compliant coating to the stiff matrix to achieve absorption bandgaps in the range of 6-30 kHz. This paper provides guidelines for designing phononic glasses with proper structures and component materials to work in specific frequency ranges.
学科领域	Materials Science ; Physics
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000345293200053
项目资助者	We acknowledge project supported by the National Natural Science Foundation of China (Grant No 11202211 and 11272315) and the opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology). The opening project number is KFJJ14-5 M.
课题组名称	NML空间材料物理力学
论文分区	二类
力学所作者排名	True
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49449
专题	微重力重点实验室
通讯作者	Wang, YR (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Chen M,Jiang H,Feng YF,et al. Investigation of locally resonant absorption and factors affecting the absorption band of a phononic glass[J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,2014,117,4,:2067-2072.
APA	Chen M,Jiang H,Feng YF,Wang YR,&Wang, YR .(2014).Investigation of locally resonant absorption and factors affecting the absorption band of a phononic glass.APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,117(4),2067-2072.
MLA	Chen M,et al."Investigation of locally resonant absorption and factors affecting the absorption band of a phononic glass".APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 117.4(2014):2067-2072.

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