多重开孔式声子晶体隔声特性研究
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摘要
设计了一种多重开孔式局域共振声子晶体结构,结合有限元方法计算结构的带隙和隔声特性,并进一步分析了影响隔声效果的因素。结果表明,该结构在41~1500 Hz范围内存在一个较宽的完全带隙和两个较宽的方向带隙。隔声峰出现的位置与带隙频率范围相对应。通过增加内部金芯体的半径,减小包覆层硅橡胶孔的尺寸,可以取得更好的隔声效果。通过在结构中新增一层复合层,可使整体结构的隔声性能进一步优化。
A type of locally resonant phononic crystal with multi-opening structure was proposed. The structure's band gap and sound transmission loss were investigated with the finite element methods. The factors that affecting the sound isolation effect were also studied. It is found that,the proposed structure has one wide absolute band gap and two wide directional band gaps in the frequency ranging from 41 Hz to 1500 Hz. The location of sound isolation peaks are consistent with the frequency range of band gaps.By increasing the radius of inner golden core and reducing the size of the openings in the middle silastic layer,a better sound isolation effect could be obtained. Furthermore,with a new compound layer adding to the structure,the sound isolation effect of total structure could be further improved.
A type of locally resonant phononic crystal with multi-opening structure was proposed. The structure's band gap and sound transmission loss were investigated with the finite element methods. The factors that affecting the sound isolation effect were also studied. It is found that,the proposed structure has one wide absolute band gap and two wide directional band gaps in the frequency ranging from 41 Hz to 1500 Hz. The location of sound isolation peaks are consistent with the frequency range of band gaps.By increasing the radius of inner golden core and reducing the size of the openings in the middle silastic layer,a better sound isolation effect could be obtained. Furthermore,with a new compound layer adding to the structure,the sound isolation effect of total structure could be further improved.
引文
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[27]陈琳,吴卫国,周榕.一种基于局域共振的低频超宽带隙瓣状声学超材料[J].声学技术,2016,35(3):222-227.
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[29]杜春阳,郁殿龙,刘江伟,等.X形超阻尼局域共振声子晶体梁弯曲振动带隙特征[J].物理学报,2017,66(14):140701.
[30]Dai H,Liu T,Jiao J,et al.Double Dirac cone in two-dimensional phononic crystals beyond circular cells[J].Journal of Applied Physics,2017,121(13):135105.
[2]马兴瑞,郑钢铁,段广仁,等.动力学、振动与控制新进展[M].北京:中国宇航出版社,2006.
[3]孙明.船体振动噪声在声学覆盖层中传递特性研究[D].哈尔滨:哈尔滨工程大学,2010.
[4]苏强,王桂波,朱鹏飞,等.国外潜艇声隐身前沿技术发展综述[J].舰船科学技术,2014,36(1):1-9.
[5]Kushwaha M S,Halevi P,Dobrzynski L,et al.Acoustic band structure of periodic elastic composites[J].Phys.Rev Lett.,1993,71(13):2022-2025.
[6]温熙森,温激鸿,郁殿龙,等.声子晶体[M].北京:国防工业出版社,2009.
[7]Martinezsala R,Sancho J,Snchez J V,et al.Sound-attenuation by sculpture[J].Nature,1995,378(6554):241-241.
[8]James R,Woodley S M,Dyer C M,et al.Sonic bands,band gaps,and defect states in layered structures-theory and experiment[J].The Journal of the Acoustical Society of America,1995,97(4):2041-2047.
[9]Torres M,Deespinosa F R M,Garcia-pablos D,et al.Sonic band gaps in finite elastic media:surface states and localization phenomena in linear and point defects[J].Physical Review Letters,1999,82(15):3054.
[10]Wu F,Hou Z,Liu Z,et al.Point defect states in two-dimensional phononic crystals[J].Physics Letters A.,2001,292(3):198-202.
[11]Liu Z Y,Zhang X X,Mao Y W,et al.Locally resonant sonic materials[J].Science,2000,289(5485):1734-1734.
[12]Li J,Chan C T.Double-negative acoustic metamaterial[J].Phys.Rev.E,2004,70(5):055602(R).
[13]Psarobas I E,Stefanou N,Modinos A.Phononic crystals with planar defects[J].Physical Review B.,2000,62(9):5536-5540.
[14]Romero-garcia V,Sanchez-perez J V,Garcia-raffi L M.Propagating and evanescent properties of double-point defects in sonic crystals[J].New Journal of Physics.,2010,12:083024.
[15]Romero-garcia V,Sanchez-perez J V,Garcia-raffi L M.Analytical model to predict the effect of a finite impedance surface on the propagation properties of 2D Sonic Crystals[J].Journal of Physics D:Applied Physics.,2011,44(26):265501.
[16]Hu X,Shen Y,Liu X,et al.Superlensing effect in liquid surface waves[J].Physical Review E.,2004,69(3):030201.
[17]Li J,Liu Z,Qiu C.Negative refraction imaging of acoustic waves by a two-dimensional three-component phononic crystal[J].Physical Review B.,2006,73(5):054302.
[18]Lu M,Zhang C,Feng L,et al.Negative birefraction of acoustic waves in a sonic crystal[J].Nature Materials.,2007:744-748.
[19]Li J,Liu Z,Qiu C.Negative refraction imaging of solid acoustic waves by two-dimensional three-component phononic crystal[J].Physics Letters A.,2008,372(21):3861-3867.
[20]Sanchez-dehesa J,Garcia-chocano V M,Torrent D,et al.Noise control by sonic crystal barriers made of recycled materials[J].Journal of the Acoustical Society of America.,2011,129(3):1173-1183.
[21]Naify C J,Chang C M,Mcknight G,et al.Transmission loss and dynamic response of membrane-type locally resonant acoustic etamaterials[J].Journal of Applied Physics.,2010,108:114905.
[22]Naify C J,Chang C M,Mcknight G,et al.Membrane-type metamaterials:Transmission loss of multi-celled arrays[J].Journal of Applied Physics.,2011,109(10):104902-104909.
[23]Naify C J,Chang C M,Mcknight G,et al.Transmission loss of membrane-type acoustic metamaterials with coaxial ring masses[J].Journal of Applied Physics.,2011,110(12):124903-124908.
[24]Mei J,Ma G,Yang M,et al.Dark acoustic metamaterials as super absorbers for low-freqeuncy sound[J].Nature Communications.,2012,3:756.
[25]柳志忠.潜艇声纳的装备技术与发展[J].舰船电子工程,2016,36(7):23-26.
[26]黄佳,尹进,张昭,等.圆管型局域共振声子晶体三维构型振动带隙研究[J].计算力学学报,2015,32(3):353-356.
[27]陈琳,吴卫国,周榕.一种基于局域共振的低频超宽带隙瓣状声学超材料[J].声学技术,2016,35(3):222-227.
[28]Sun X T,Jing X J.A nonlinear vibration isolator achieving high-static-low-dynamic stiffness and tunable anti-resonance frequency band[J].Mechanical Systems and Signal Processing,2016,80,166-188,.
[29]杜春阳,郁殿龙,刘江伟,等.X形超阻尼局域共振声子晶体梁弯曲振动带隙特征[J].物理学报,2017,66(14):140701.
[30]Dai H,Liu T,Jiao J,et al.Double Dirac cone in two-dimensional phononic crystals beyond circular cells[J].Journal of Applied Physics,2017,121(13):135105.