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Based on the mechanical wave selective absorption principle of mass-spring microstructures by the optical vibration mode, a two-dimensional acoustic metamaterial panel consisting of lumped mass and elastic membrane is presented. The vibration characteristic simulation of the metamaterial equivalent panel representative cell is performed using the finite element method and the results indicate that the presented 2D metamaterial panel behaves just like regular mass-spring microstructures. Under the guidance of the simulation results, a square metamaterial panel is fabricated and its vibration characteristics are examined using a Polytec scanning laser vibrometer. The test results indicate that the metamaterial panel can efficiently absorb mechanical waves of about 157.5 Hz.
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Keywords:
- mass-spring microstructure /
- optical vibration mode /
- mechanical wave /
- acoustic metamaterial equivalent panel
[1] Liu Z, Zhang X, Mao Y 2000 Sci. 289 1734
[2] Liu Z, Chan C T, Sheng P 2005 Phys. Rev. B 71 014103
[3] Chen H, Chan C T 2007 Appl. Phys. Lett. 91 183518
[4] Li J, Chan C T 2004 Phys. Rev. E 70 055602
[5] Berryman J G 1980 J. Acoust. Soc. Am. 68 809
[6] Hirsekorn M 2004 Appl. Phys. Lett. 84 17
[7] Milton G W, Briane M, Willis J R 2006 New J. Phys. 8 248
[8] Huang H H, Sun C T 2009 Int. J. Eng. Sci. 47 610
[9] Ding C L, Zhao X, P 2009 Acta Phys. Sin. 58 6351 (in Chinese) [丁昌林, 赵晓鹏 2009 物理学报 58 6351]
[10] Sheng P, Zhang X X, Liu Z, Chan C T 2003 Physica B 338 201
[11] Diaz A R, Haddow A G, Ma L 2005 Struct. Multidiscip. O. 29 418
[12] Lin G C, Sun H W, Tan H F, Du X W 2011 Acta. Phys. Sin. 60 034302 (in Chinese) [林国昌, 孙宏伟, 谭惠丰, 杜星文 2011 物理学报 60 034302]
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[1] Liu Z, Zhang X, Mao Y 2000 Sci. 289 1734
[2] Liu Z, Chan C T, Sheng P 2005 Phys. Rev. B 71 014103
[3] Chen H, Chan C T 2007 Appl. Phys. Lett. 91 183518
[4] Li J, Chan C T 2004 Phys. Rev. E 70 055602
[5] Berryman J G 1980 J. Acoust. Soc. Am. 68 809
[6] Hirsekorn M 2004 Appl. Phys. Lett. 84 17
[7] Milton G W, Briane M, Willis J R 2006 New J. Phys. 8 248
[8] Huang H H, Sun C T 2009 Int. J. Eng. Sci. 47 610
[9] Ding C L, Zhao X, P 2009 Acta Phys. Sin. 58 6351 (in Chinese) [丁昌林, 赵晓鹏 2009 物理学报 58 6351]
[10] Sheng P, Zhang X X, Liu Z, Chan C T 2003 Physica B 338 201
[11] Diaz A R, Haddow A G, Ma L 2005 Struct. Multidiscip. O. 29 418
[12] Lin G C, Sun H W, Tan H F, Du X W 2011 Acta. Phys. Sin. 60 034302 (in Chinese) [林国昌, 孙宏伟, 谭惠丰, 杜星文 2011 物理学报 60 034302]
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