干旱区生态环境知识资源中心(Arid): Elastic Metamaterial Design To Filter Harmonic Mechanical Wave Propagation

Arid

	Elastic Metamaterial Design To Filter Harmonic Mechanical Wave Propagation
	Rodrigues, Gustavo Simao 1; Weber, Hans Ingo 2; Driemeier, Larissa 3
通讯作者	Rodrigues, Gustavo Simao
会议名称	ASMEInternational Mechanical Engineering Congress and Exposition (IMECE2018)
会议日期	NOV 09-15, 2018
会议地点	Pittsburgh, PA
英文摘要	The metamaterial concept was first oriented to electromagnetic field applications and the main objectives were to develop materials with peculiar properties such as negative dielectric constant, negative magnetic permeability and negative refraction index. Gradually, other areas started using parameters that do not exist in the materials found in nature and, classifying them as metamaterials. So, areas such as acoustics, optics and mechanics opened up space for applications of this innovative material. Many efforts for an adequate modeling were made searching also for all kinds of possible applications. One example of application in optics is the use of conformal transformation to design devices with new functionalities from non-homogeneous isotropic dielectric media. The mirages created in the desert are the result of these non-homogeneities. These studies are supposed being helpful to develop invisible cloaks using metamaterials. The present work deals with elastic metamaterial application in mechanical engineering. It is well knowing that metamaterials are able to filter harmonic wave propagation and many works present this capability caused by a bandgap that appears in some range of frequency due to the system's features. However, it is not very clear how the parameters used for the metamaterials design should be defined. The purpose of this work is to propose a methodology to design an optimized metamaterial component to filter the mechanical wave propagation in a finite chain of masses. It is also in the scope of this work to analyze the borders of the bandgap of the studied chain of masses and how the propagated wave is attenuated along this region.
来源出版物	PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2018, VOL 1
出版年	2019
ISBN	978-0-7918-5200-2
出版者	AMER SOC MECHANICAL ENGINEERS
类型	Proceedings Paper
语种	英语
国家	Brazil
收录类别	CPCI-S
WOS记录号	WOS:000465183800027
WOS类目	Engineering, Aerospace ; Engineering, Mechanical
WOS研究方向	Engineering
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/308204
作者单位	1.Mil Inst Engn, Rio De Janeiro, RJ, Brazil; 2.Pontifical Catholic Univ Rio de Janeiro, Rio De Janeiro, RJ, Brazil; 3.Univ Sao Paulo, Sao Paulo, SP, Brazil
推荐引用方式 GB/T 7714	Rodrigues, Gustavo Simao,Weber, Hans Ingo,Driemeier, Larissa. Elastic Metamaterial Design To Filter Harmonic Mechanical Wave Propagation[C]:AMER SOC MECHANICAL ENGINEERS,2019.