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In this paper the influences of viscoelastic absorption of materials on the directivity and DOA estimation of acoustic vector sensor installed on the carrier are investigated by virtue of theoretical analysis and experimental results. First, the mathematical model, consisting of absorption material and carrier structure, is established, and the acoustic characteristics of the composite materials in the case of sound propagation are analyzed. On that basis, the acoustic characteristics picked up by the vector sensor are studied by finite element method (FEM) coupling boundary element method (BEM) before and after the covering of absorption material. The influences of absorption material on the directivity of vector sensor are studied by theoretical calculation and numerical analysis, and the DOA estimation accuracy of the vector sensor before and after covering by sound absorption material is calculated. Results are proved to be valid by the experiment in the anechoic tank.
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Keywords:
- sound absorption material /
- small underwater carrier /
- acoustic vector sensor /
- acoustic characteristics
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[2] Kosobrodov R A, Nekrasov V N 2001 Acoust Phys. 47 382
[3] Robert J B, Kevin B S, Harold T V 2010 J. Acoust. Soc. Am. 129 2772
[4] Seyyed M H, M R 2007 J. Sound Vibr. 302 208
[5] Lin F M, Hong P Y, Lee C Y 2010 Appl. Acust. 71 68
[6] Romanov A G, Tolokonnikov L A 2009 J. Appl. Math. Mech. 73 336
[7] He Y A, He Z Y 2002 Acta Acoust. 27 507 (in Chinese) [何元安, 何祚镛 2002 声学学报 27 507]
[8] Ying Y Z, Ma L, Guo S M 2011 Chin. Phys. B 20 054301
[9] Yu F, Chen J, Li W B, Chen X Z 2005 Acta Phys. Sin. 54 789 (in Chinese) [于飞, 陈剑, 李卫兵, 陈心昭 2005 54 789]
[10] Zhang H B, Jiang W K, Wan Q 2008 Acta Phys. Sin. 57 313 (in Chinese) [张海滨, 蒋伟康, 万泉 2008 57 313]
[11] Bi C X, Hu D Y, Zhang Y B, X L 2013 Acta Phys. Sin. 62 084301 (in Chinese) [毕传兴, 胡定玉, 张永斌, 徐亮 2013 62 084301]
[12] Xu L 2009 Ph. D. Dissertation (Hefei: Hefei University of Technology) (in Chinese) [徐亮, 2009 博士学位论文(合肥: 合肥工业大学)]
[13] Wang R Q, Ma L L 2004 J Harbin Eng Univ. 3 288 (in Chinese) [王仁乾, 马黎黎 2004 哈尔滨工程大学学报 3 288]
[14] Bai G F, Yin Z, Zhou C G, Liu B L, Liu K 2010Acta Acoust. 35 107 (in Chinese) [白国锋, 尹铫, 周城光, 刘碧龙, 刘克 2010 声学学报 35 107]
[15] Baird A M, Kerr F H, Townend D J 1999 J. Acoust. Soc. Am. 105 1527
[16] Zhao H G, Liu Y Z, Wen J H, Yu D L, Wen X S 2007 J. Appl. Phys. 101 123518
[17] Jiang H, Zhang M L, Wang Y R, Hu Y P, Lan D, Wei B C 2009 Chin. Phys. Lett. 26 106202
[18] Y L G, L Z H, M L L 2012 Acta Phys. Sin. 61 024301 (in Chinese) [于利刚, 李朝晖, 马黎黎 2012 61 024301]
[19] Yu L G, Li Z H, Wang R Q, M L L 2013 Acta Phys. Sin. 62 064301 (in Chinese) [于利刚, 李朝晖, 王仁乾, 马黎黎 2013 62 064301]
[20] Sven M I 2006 J. Acoust. Soc. Am. 119 3558
[21] Brekhovskikh L M 1980 Waves in Layered Media (New York: Academic Press) p61
[22] Щендеров, He Z Y, Zhao J Y 1983 Wave Propagation Problems of Underwater Acoustics (Beijing: National Defense Industry Press) p267 (in Chinese) [沈杰罗夫, 何祚镛, 赵晋英 1983 水声学波动问题(北京: 国防工业出版社) 第267页]
[23] Ji J F 2012 Ph. D. Dissertation (Harbin: Harbin Engineering University) (in Chinese) [嵇建飞 2012 博士学位论文(哈尔滨: 哈尔滨工程大学)]
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[1] Sun G Q, Li Q H 2004 Acta Acoust. 29 481 (in Chinese) [孙贵青, 李启虎 2004 声学学报 29 481]
[2] Kosobrodov R A, Nekrasov V N 2001 Acoust Phys. 47 382
[3] Robert J B, Kevin B S, Harold T V 2010 J. Acoust. Soc. Am. 129 2772
[4] Seyyed M H, M R 2007 J. Sound Vibr. 302 208
[5] Lin F M, Hong P Y, Lee C Y 2010 Appl. Acust. 71 68
[6] Romanov A G, Tolokonnikov L A 2009 J. Appl. Math. Mech. 73 336
[7] He Y A, He Z Y 2002 Acta Acoust. 27 507 (in Chinese) [何元安, 何祚镛 2002 声学学报 27 507]
[8] Ying Y Z, Ma L, Guo S M 2011 Chin. Phys. B 20 054301
[9] Yu F, Chen J, Li W B, Chen X Z 2005 Acta Phys. Sin. 54 789 (in Chinese) [于飞, 陈剑, 李卫兵, 陈心昭 2005 54 789]
[10] Zhang H B, Jiang W K, Wan Q 2008 Acta Phys. Sin. 57 313 (in Chinese) [张海滨, 蒋伟康, 万泉 2008 57 313]
[11] Bi C X, Hu D Y, Zhang Y B, X L 2013 Acta Phys. Sin. 62 084301 (in Chinese) [毕传兴, 胡定玉, 张永斌, 徐亮 2013 62 084301]
[12] Xu L 2009 Ph. D. Dissertation (Hefei: Hefei University of Technology) (in Chinese) [徐亮, 2009 博士学位论文(合肥: 合肥工业大学)]
[13] Wang R Q, Ma L L 2004 J Harbin Eng Univ. 3 288 (in Chinese) [王仁乾, 马黎黎 2004 哈尔滨工程大学学报 3 288]
[14] Bai G F, Yin Z, Zhou C G, Liu B L, Liu K 2010Acta Acoust. 35 107 (in Chinese) [白国锋, 尹铫, 周城光, 刘碧龙, 刘克 2010 声学学报 35 107]
[15] Baird A M, Kerr F H, Townend D J 1999 J. Acoust. Soc. Am. 105 1527
[16] Zhao H G, Liu Y Z, Wen J H, Yu D L, Wen X S 2007 J. Appl. Phys. 101 123518
[17] Jiang H, Zhang M L, Wang Y R, Hu Y P, Lan D, Wei B C 2009 Chin. Phys. Lett. 26 106202
[18] Y L G, L Z H, M L L 2012 Acta Phys. Sin. 61 024301 (in Chinese) [于利刚, 李朝晖, 马黎黎 2012 61 024301]
[19] Yu L G, Li Z H, Wang R Q, M L L 2013 Acta Phys. Sin. 62 064301 (in Chinese) [于利刚, 李朝晖, 王仁乾, 马黎黎 2013 62 064301]
[20] Sven M I 2006 J. Acoust. Soc. Am. 119 3558
[21] Brekhovskikh L M 1980 Waves in Layered Media (New York: Academic Press) p61
[22] Щендеров, He Z Y, Zhao J Y 1983 Wave Propagation Problems of Underwater Acoustics (Beijing: National Defense Industry Press) p267 (in Chinese) [沈杰罗夫, 何祚镛, 赵晋英 1983 水声学波动问题(北京: 国防工业出版社) 第267页]
[23] Ji J F 2012 Ph. D. Dissertation (Harbin: Harbin Engineering University) (in Chinese) [嵇建飞 2012 博士学位论文(哈尔滨: 哈尔滨工程大学)]
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