Sound insulation property of membrane-type acoustic metamaterials carrying different masses at adjacent cells

We present the experimental realization and theoretical understanding of membrane-type acoustic metamaterials embedded with different masses at adjacent cells, capable of increasing the transmission loss at low frequency. Owing to the reverse vibration of adjacent cells, Transmission loss (TL) peaks appear, and the magnitudes of the TL peaks exceed the predicted results of the composite wall. Compared with commonly used configuration, i.e., all cells carrying with identical mass, the nonuniformity of attaching masses causes another much low TL peak. Finite element analysis was employed to validate and provide insights into the TL behavior of the structure.

[1]  Jihong Wen,et al.  Low-frequency acoustic absorption of localized resonances: Experiment and theory , 2010 .

[2]  High optimization process for increasing the attenuation properties of acoustic metamaterials by means of the creation of defects , 2008 .

[3]  Xiaopeng Zhao,et al.  Tunable acoustic metamaterial with negative modulus , 2012 .

[4]  P. Sheng,et al.  Locally resonant sonic materials , 2000, Science.

[5]  Xiaopeng Zhao,et al.  Two-dimensional acoustic metamaterial with negative modulus , 2010 .

[6]  Steven Nutt,et al.  Transmission loss and dynamic response of membrane-type locally resonant acoustic metamaterials , 2010 .

[7]  Christina J. Naify,et al.  Transmission loss of membrane-type acoustic metamaterials with coaxial ring masses , 2011 .

[8]  P. Sheng,et al.  Hybrid elastic solids. , 2011, Nature materials.

[9]  C. Sun,et al.  Wave attenuation mechanism in an acoustic metamaterial with negative effective mass density , 2009 .

[10]  Steven A. Cummer,et al.  Design and measurements of a broadband two-dimensional acoustic metamaterial with anisotropic effective mass density , 2011 .

[11]  Sam-Hyeon Lee,et al.  Composite acoustic medium with simultaneously negative density and modulus. , 2010, Physical review letters.

[12]  P. Sheng,et al.  Broadband locally resonant sonic shields , 2003 .

[13]  Jihong Wen,et al.  Theoretical investigation of the sound attenuation of membrane-type acoustic metamaterials , 2012 .

[14]  J. Silver,et al.  Sound transmission testing of polymer compounds , 2012 .

[15]  V. Romero-Garc'ia,et al.  Tunable wideband bandstop acoustic filter based on 2D multi-physical phenomena periodic systems , 2011, 1102.1593.

[16]  Gang Wang,et al.  Effects of locally resonant modes on underwater sound absorption in viscoelastic materials. , 2011, The Journal of the Acoustical Society of America.

[17]  Ping Sheng,et al.  Acoustic metamaterial panels for sound attenuation in the 50–1000 Hz regime , 2010 .

[18]  P. Sheng,et al.  Membrane-type acoustic metamaterial with negative dynamic mass. , 2008, Physical review letters.

[19]  Christina J. Naify,et al.  Membrane-type metamaterials: Transmission loss of multi-celled arrays , 2011 .

[20]  T. E. Vigran,et al.  Normal incidence sound transmission loss in impedance tube – Measurement and prediction methods using perforated plates , 2012 .

[21]  A. Krynkin,et al.  Multi-resonant scatterers in Sonic Crystals: Locally Multi-resonant Acoustic Metamaterial , 2011, 1103.6283.

[22]  Ming-Hui Lu,et al.  Phononic crystals and acoustic metamaterials , 2009 .

[23]  Sam-Hyeon Lee,et al.  Acoustic metamaterial with negative density , 2009 .

[24]  N. Fang,et al.  Sub–Diffraction-Limited Optical Imaging with a Silver Superlens , 2005, Science.