Physically Realizable Broadband Acoustic Metamaterials with Anisotropic Density
-
Abstract
Transformation acoustics are concentrated for the purpose of designing novel acoustic devices to tailor acoustic waves to achieve desirable characteristics. However, these devices require fluid or fluid-like materials with an anisotropic density that generally does not exist in nature. Therefore, we introduce pentamode metamaterials into an alternating multilayer isotropic medium model to build fluid-like metamaterials with an anisotropic density. A 2D acoustic bending based on transformation acoustics is established and investigated to verify our method. This idea provides a method to design broadband and physically realizable acoustic metamaterials with an anisotropic density and is meaningful for the design of acoustic metamaterials. -
-
References
[1] Cummer S A, Christensen J and Alu A 2016 Nat. Rev. Mater. 1 16001 doi: 10.1038/natrevmats.2016.1[2] Chen H and Chan C T 2010 J. Phys. D 43 113001 doi: 10.1088/0022-3727/43/11/113001[3] Norris A N 2008 Proc. R. Soc. London A 464 2411 doi: 10.1098/rspa.2008.0076[4] Zigoneanu L, Popa B I, Starr A F and Cummer S A 2011 J. Appl. Phys. 109 054906 doi: 10.1063/1.3552990[5] Bi Y F, Han J, Lu W J, Ji P and Yang J 2017 Sci. Rep. 7 705 doi: 10.1038/s41598-017-00779-4[6] Bi Y F, Jia H, Sun Z Y, Yang Y Z, Zhao H and Yang J 2018 Appl. Phys. Lett. 112 223502 doi: 10.1063/1.5026199[7] Chen Y, Liu X N and Hu G K 2015 Sci. Rep. 5 15745 doi: 10.1038/srep15745[8] Akl W and Baz A 2012 J. Appl. Phys. 111 044505 doi: 10.1063/1.3686210[9] Lu W J, Jia H, Bi Y F, Yang Y Z and Yang J 2017 J. Acoust. Soc. A 142 84 doi: 10.1121/1.4990952[10] Sun Z Y, Jia H, Chen Y, Wang Z and Yang J 2018 J. Acoust. Soc. A 143 1029 doi: 10.1121/1.5024351[11] Wu L Y, Chiang T Y, Tsai C N, Wu M L and Chen L W 2012 Appl. Phys. A 109 523 doi: 10.1007/s00339-012-7296-5[12] Zhao L, Conlon S C and Semperlotti F 2014 Smart Mater. Struct. 23 065021 doi: 10.1088/0964-1726/23/6/065021[13] Xu T, Zhu X F, Liang B, Li Y, Zou X Y and Cheng J C 2012 Appl. Phys. Lett. 101 033509 doi: 10.1063/1.4737873[14] Cai L, Wen J H, Yu D L, Lu Z M and Wen X S 2014 Chin. Phys. Lett. 31 094303 doi: 10.1088/0256-307X/31/9/094303[15] Cummer S A and Schurig D 2007 New J. Phys. 9 45 doi: 10.1088/1367-2630/9/3/045[16] Cheng Y, Yang F, Xu J Y and Liu X J 2008 Appl. Phys. Lett. 92 151913 doi: 10.1063/1.2903500[17] Liu Z Y, Zhang X X, Mao Y, Zhu Y Y, Yang Z, Chan C T and Sheng P 2012 Science 338 201 doi: 10.1126/science.1230718[18] Torrent D and Sánchezdehesa J 2008 New J. Phys. 10 063015 doi: 10.1088/1367-2630/10/6/063015[19] Torrent D and Sánchezdehesa J 2010 Phys. Rev. Lett. 105 174301 doi: 10.1103/PhysRevLett.105.174301[20] Zhang S, Xia C and Fang N 2011 Phys. Rev. Lett. 106 024301 doi: 10.1103/PhysRevLett.106.024301[21] Norris A 2011 J. Acoust. Soc. Am. 130 2359 doi: 10.1121/1.3654451[22] Gokhale N H, Cipolla J L and Norris A N 2012 J. Acoust. Soc. Am. 132 2932 doi: 10.1121/1.4744938[23] Milton G W and Cherkaev A 1995 J. Eng. Mater. T 117 483 doi: 10.1115/1.2804743[24] Kadic M, Bückmann T, Schittny R and Wegener M 2013 New J. Phys. 15 023029 doi: 10.1088/1367-2630/15/2/023029[25] Layman C N, Naify C J, Martin T P, Calvo D C and Orris G J 2013 Phys. Rev. Lett. 111 024302 doi: 10.1103/PhysRevLett.111.024302[26] Su X, Norris A N, Cushing C W, Haberman M R and Wilson P S 2017 J. Acoust. Soc. A 141 4408 doi: 10.1121/1.4985195[27] Fu M H and Yin J R 1999 Acta Mech. Sin. 31 133 in Chinese[28] Gibson L J and Ashby M F 1982 Proc. R. Soc. London 382 43 doi: 10.1098/rspa.1982.0088
DownLoad: