低频抑振器用于抑制水下薄板振动和声辐射的研究

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (21) : 233-240.

论文

王钰杰，陶猛，符磊，赵雪峰

作者信息 +

Low-frequency vibration suppressor applied in suppressing vibration and acoustic radiation of underwater thin plate

WANG Yujie, TAO Meng, FU Lei, ZHAO Xuefeng

Author information +

文章历史 +

摘要

为研究低频抑振器对流体中板结构的减振降噪性能，建立了考虑流固耦合的水下板结构声振仿真模型。通过对比有限元结果与理论解，验证了所采用的有限元仿真方法的可行性。分析了低频抑振器的材料和结构参数对简支板振动声辐射的影响，结果表明：低频抑振器有较宽的抑振频段，具有抑制结构中弯曲波传播的特性；黏弹性材料对低频抑振器减振降噪性能有重要作用，损耗因子增大对低频抑振器效果有利；增大杨氏模量会使结构在高频的振动和声辐射峰值降低，但并非杨氏模量越大整体效果越优；增加质量和低频抑振器高度有利于改善低频抑振器低频时的性能；改变空腔直径会同时改变低频抑振器的质量、刚度和阻尼，选择空腔直径要综合考虑这些参数变化带来的影响。

Abstract

In order to study vibration and noise reduction performance of a low-frequency vibration suppressor to an underwater plate structure, an acoustic-vibration simulation model of an underwater plate structure considering fluid-structure interaction was established.By comparing its FE results with the theoretical solution, the feasibility of the FEM was verified.Effects of material and structural parameters of the low-frequency vibration suppressor on vibration and sound radiation of an underwater simply supported plate were analyzed.Results showed that low-frequency vibration suppressor has a wider vibration suppression frequency range and characteristics to suppress bending wave propagation in plate structure; viscoelastic material plays an important role in vibration and noise reduction performance of low-frequency vibration suppressor; increasing loss factor is beneficial to the effect of low-frequency vibration suppressor; increasing material Young’s modulus can reduce peak values of high frequency vibration and sound radiation in plate structure, but it is not true that the larger the Young’s modulus, the better the overall effect; increasing low-frequency vibration suppressor’s mass and height is beneficial to improving its performance within a lower frequency range; changing its cavity diameter can simultaneously change its mass, stiffness and damping, so choosing its cavity diameter should comprehensively consider effects brought by variation of these parameters.

导出引用

王钰杰，陶猛，符磊，赵雪峰. 低频抑振器用于抑制水下薄板振动和声辐射的研究[J]. 振动与冲击, 2020, 39(21): 233-240

WANG Yujie, TAO Meng, FU Lei, ZHAO Xuefeng. Low-frequency vibration suppressor applied in suppressing vibration and acoustic radiation of underwater thin plate[J]. Journal of Vibration and Shock, 2020, 39(21): 233-240

参考文献

[1] 黎胜. 水下结构声辐射和声传输的数值分析及主动控制模拟研究[D]. 大连：大连理工大学, 2001.
[2] 张冠军,朱翔,李天匀,等. 双层加筋板水下声振耦合特性研究[J]. 船舶力学, 2019, 23(01):78-87.
ZHANG Guan-jun,ZHU Xiang,LI Tian-yun,et al. Vibro-acoustic coupling characteristics of double stiffened plates coupled with water [J]. Journal of Ship Mechanics,2019,23(01):78-87.
[3] 吴锦武,彭文辉,赵飞. 分层有限元模型下层合板声功率优化设计[J]. 振动与冲击, 2015, 34(16):85-89+146.
WU Jin-wu,PENG Wen-hui.ZHAO Fei. Optimal design of acoustic power of laminated composite plate based on layer-wise FEM[J]. Journal of Vibration and Shock, 2015, 34(16):85-89+146.
[4] 闫兆敏,张东俊,温激鸿,等. 基于有限元法的贴敷阻尼薄板声辐射性能研究[J]. 振动与冲击,2014,33(15):195-199+211.
YAN Zhao-min,ZHANG Dong-jun,WEN Ji-honf,et al. Sound radiation from a damped thin plate based on finite element method [J]. Journal of Vibration and Shock, 2014,33(15):195-199+211.
[5] 陶猛,汤渭霖,范军. 柔性去耦覆盖层降噪机理分析[J]. 船舶力学, 2010, 14(4):421-429.
TAO Meng,TANG Wei-lin,FAN Jun. Mechanism analysis of noise reduction by compliant decoupling layers[J]. Journal of Ship Mechanics,2010,14(4): 421-429.
[6] 陶猛,范军,汤渭霖. 覆盖多柔性层的有限长圆柱壳声辐射特性[J]. 声学学报(中文版), 2008, 33(3):220-225.
Tao Meng,Fan Jun,Tang Weilin. The characteristics of sound radiation from a cylindrical shell coated with multiple compliant layers[J]. Acta Acustica, 2008, 33(3): 220-225.
[7] Plattenburg J , Dreyer J T , Singh R . Active and passive damping patches on a thin rectangular plate: A refined analytical model with experimental validation[J]. Journal of Sound and Vibration, 2015, 353:75-95.
[8] Jin Zhongkun , Yin Yao , Liu B . Equivalent modulus method for finite element simulation of the sound absorption of anechoic coating backed with orthogonally rib-stiffened plate[J]. Journal of Sound and Vibration, 2016, 366:357-371.
[9] 徐振邦,吴清文. 吸振器底座对减振效果的影响研究[J]. 振动与冲击,2014,33(13):72-76.
XU Zhenbang,WU Qingwen. nfluence of the base of vibration absorber on vibration attenuation effect[J]. Journal of Vibration and Shock,2014,33(13):72-76.
[10] Xu Zhao-Dong,Gai Pan-Pan, Zhao Hui-Yi, et al. Experimental and theoretical study on a building structure controlled by multi-dimensional earthquake isolation and mitigation devices[J]. Nonlinear Dynamics, 2017,89(1):723-740.
[11] Hua Yingyu,Wong W,Li Cheng. Optimal design of a beam-based dynamic vibration absorber using fixed-points theory[J]. Journal of Sound and Vibration,2018,421:111-131.
[12] Esen I,KOC M A. Optimization of a passive vibration absorber for a barrel using the genetic algorithm[J]. Expert Systems with Applications, 2015, 42(2):894-905.
[13] Sun S S , Yang J , Li W H , et al. Development of an isolator working with magnetorheological elastomers and fluids[J]. Mechanical Systems and Signal Processing, 2017: 83:371-384.
[14] 刘海平,杨建中,罗文波,钱志英.新型欧拉屈曲梁非线性动力吸振器的实现及抑振特性研究[J].振动与冲击,2016,35(11):155-160+228.
LIU Hai-ping,YANG Jian-zhong,LUO Wen-bo,et al. Realization and vibration supperession ability of a new novel Euler buckled beam nonlinear vibration absorber[J]. Journal of Vibration and Shock,2016,35(11):155-160+228.
[15] Li S , Li X . The effects of distributed masses on acoustic radiation behavior of plates[J]. Applied Acoustics, 2008, 69(3):272-279.
[16] 朱拥勇,刘宝.简支矩形板在空气与水中声辐射特性比较[J].噪声与振动控制,2016,36(03):11-15.
ZHU Yong-yong,LIU Bao. Comparison of the Acoustic Radiation Characteristics of Simply Supported Rectangular Plates in the Air and in the Water [J]. Noise and Vibration Control,2016,36(03):11-15.