水下圆柱壳低频声辐射特性及有源控制

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (20) : 185-190.

论文

水下圆柱壳低频声辐射特性及有源控制

丁少虎1,2，陈克安1，李双3

作者信息 +

The low frequencies radiation characteristics of a submerged cylindrical shell and active control

DING Shao-hu1,2，CHEN Ke-an1，LI Shuang3

Author information +

文章历史 +

摘要

利用振动模态及声辐射模态分析水下有限长圆柱壳低频模态辐射特性。计算各阶周向振动模态对辐射声功率贡献；将各阶周向模态下轴向振动模态分为奇、偶模态组，分析低频范围内振动模态组与声辐射模态对应关系；以主导声辐射模态声功率为目标函数对水下有限长圆柱壳低频声辐射进行有源控制。结果表明，低频范围内水下简支圆柱壳受径向点力激励时，仅前几阶周向振动模态对辐射声功率有贡献；同一周向振动模态下轴向为奇（偶）振动模态组产生的声功率与具有相同周向模态而轴向为偶（奇）声辐射模态产生的声功率对应。通过控制前几阶主导声辐射模态即可完成对水下有限长壳体低频辐射噪声抑制。

Abstract

The radiation characteristics of a submerged finite cylindrical shell at low frequencies are investigated based on vibration modes and acoustic radiation modes. Firstly, the contribution of the individual circumferential vibration modes to the radiated sound is observed. Then, under the certain circumferential mode, the vibration modes are divided respectively into an axial odd-modes group and an axial even-modes group, and the relationship between the vibration modes group and the acoustic radiation modes at low frequency is given. The results show that at low frequencies, only the first few circumferential vibration modes contribute to the sound power radiated from a submerged finite cylindrical shell excited by the radial point force; under the certain circumferential mode, the sound power radiated from the odd (even) axial vibration modes group corresponds to the acoustic radiation mode with the same circumferential mode and even (odd) axial vibration modes. The sound power radiated from a submerged finite cylindrical shell can be controlled by the sound power of the dominant radiation modes as a target function.

导出引用

丁少虎1,2，陈克安1，李双3. 水下圆柱壳低频声辐射特性及有源控制[J]. 振动与冲击, 2015, 34(20): 185-190

DING Shao-hu1,2，CHEN Ke-an1，LI Shuang3. The low frequencies radiation characteristics of a submerged cylindrical shell and active control[J]. Journal of Vibration and Shock, 2015, 34(20): 185-190

参考文献

[1] Fuller C R. Experiments on reduction of aircraft interior noise using of active control of fuselage vibration[J]. Journal of the Acoustical Society of America, 1985, 78(S1): 79-88.
[2] Wang B, Fuller C R, Dimitriadis E K. Active control of noise transmission through rectangular plates using multiple piezoelectric or point force actuators[J]. Journal of Vibration and Acoustics, 1991, 90(5): 2820-2830.
[3] Peter H, Kessissoglou N. Modal decomposition of exterior acoustic-structure interaction[J]. Journal of the Acoustical Society of America, 2013, 133(5): 2668-2677.
[4] Elliott S J, Johnson M E. Radiation modes and the active control of sound power [J]. Journal of the Acoustical Society of American, 1993, 94(4): 2194-2204.
[5] Cunefare K A. Effect of modal interaction on sound radiation from vibrating structures [J]. AIAA Journal, 1992, 30(12): 2819-2828.
[6] Borgiotti G V. The power radiated by a vibrating body in an acoustic fluid and its determination from boundary measurements[J]. Journal of the Acoustical Society of America, 1990, 88(4): 1884-1893.
[7] Cunefare K A, Currey M N. On the exterior acoustic radiation modes of structures [J]. Journal of the Acoustical Society of America, 1994, 96(4): 2302-2312.
[8] Cunefare K A, Currey M N, Johnson M E, et al. The radiation efficiency grouping of free-space acoustic radiation modes [J]. Journal of the Acoustical Society of America, 2001, 109(1): 203-215.
[9] 黎胜, 赵德有. 结构声辐射的振动模态分析和声辐射模态分析[J]. 声学学报, 2004, 29(3): 200-208.
    LI Sheng, ZHAO De-you. Research on modal analysis of structural acoustic radiation using structural vibration modes and acoustic radiation modes[J]. Acta Acoustica, 2004, 29(3): 200-208.
[10] Naghshineh K, Koopmann G H. Active control of sound power using acoustic basis functions as surface velocity filters[J]. Journal of the Acoustical Society of America, 1993, 93(5): 2740-2752.
[11] Naghshineh K, Chen W, Koopmann G H. Use of acoustic basis functions for active control of sound power radiated from a cylindrical shell[J]. Journal of the Acoustical Society of America, 1998, 103(4): 1897-1903.
[12] 李双,陈克安,潘浩然. 基于模态理论的有源声学结构控制机理研究[J]. 振动工程学报,2007,20(2):140-144.
    LI Shuang, CHEN Ke-an,PAN Hao-ran. Mechanisms of active control for active acoustic structure based on mode theory[J]. Journal of Vibration Engineering,2007,20(2):140- 144.
[13] 周晓楠,姜哲. 结构噪声主动控制在时域声辐射模态下的仿真研究[J]. 振动工程学报, 2007, 20(2): 148-154.
    ZHOU Xiao-nan, JIANG Zhe. Active control of acoustic radiation based on time radiation modes [J]. Journal of Vibration Engineering, 2007, 20(2): 148-154.
[14] 马玺越,陈克安,丁少虎,等.基于平面声源的三层有源隔声结构误差传感策略研究[J]. 机械工程学报,2013,49(11): 70-78.
    MA Xi-yue, CHEN Ke-an, DING Shao-hu, et al. Error sensing strategy for active triple-panel sound insulation structure using planar source[J]. Journal of Mechanical Engineering, 2013, 49(11): 70-78.
[15] Peter H, Kessissoglou N. Modal contributions to the radiated sound from a fluid–loaded cylinder[C]. Proceedings of the 20th International Congress on Sound and Vibration, Bangkok, Thailand,2013.
[16] Johnson W R, Aslani P, Sommerfeldt S D, et al. Acoustic radiation mode shapes for control of plates and shells [C]. Proceedings of the 21st International Congress on Acoustics, Montreal, Canada,2013.
[17] 姜哲. 声辐射问题中的模态分析(Ⅱ) 实例[J]. 声学学报, 2004, 29(6): 507-515.
    JIANG Zhe. A modal analysis for the acoustic radiation problems(Ⅱ)examples[J]. Acta Acoustica,2004,29(6): 507- 515.
[18] 和卫平, 陈美霞, 魏建辉, 等. 基于有限测点的单层圆柱壳辐射声功率计算[J]. 船舶力学,2012,16(10): 1204-1211.
    HEI Wei-ping, CHEN Mei-xia, WEI Jian-hui, et al. Calculation of acoustic power radiated from a cylindrical shell based on a limited number of measurements[J]. Journal of Ship Mechianics, 2012, 16(10): 1204-1211.
[19] Laulagnet B, Guyader J L. Modal analysis of a shell's acoustic radiation in light and heavy fluids[J]. Journal of Sound and Vibration, 1989, 131(3): 397-415.
[20] 丁少虎,陈克安,马玺越,等. 有限长同轴共线弹性圆柱壳间互辐射阻抗计算[J]. 振动与冲击, 2013, 32(17): 14-18.
DING Shao-hu, CHEN Ke-an, MA Xi-yue, et al. Mutual- radiation impedance of two coaxial aligned cylindrical shells with finite length[J]. Journal of Vibration and Shock, 2013, 32(17): 14-18.