Low-frequency target strength analysis of benchmark submarine with acoustic coating
英文摘要:Acoustic coating absorbs incident waves and reduces radiated noise, and is one the most commonly used methods for acoustic stealth. Therefore, the monostatic low-frequency target strength of benchmark submarine with acoustic coating is analyzed. First, the acoustic-shell-structure coupling finite element model is established and validated. Second, the target strength of single-hull benchmark submarine is analyzed. The results indicate that acoustic coating changes the peaks and notches of the target-strength curves. At some particular frequencies and incident angles, the target strength with acoustic coating is greater than that without acoustic coating. Statistically, acoustic coating reduces the average target strength slightly. Third, the target strength of double-hull benchmark submarine is analyzed. The acoustic coating in the external hull changes the peaks and notches of the target-strength curves and reduces the average target strength slightly. However, additional acoustic coating in the internal hull has little effect.
2019,41(7): 20-24 收稿日期:2018-07-21
DOI:10.3404/j.issn.1672-7649.2019.07.004
分类号:TB566
基金项目:国家自然科学基金资助项目(11772304)
作者简介:冯雪磊(1989-),男,高级工程师,研究方向为声场计算与分析
参考文献:
[1] 朱蓓丽, 黄修长. 潜艇隐身关键技术——声学覆盖层的设计[M]. 上海:上海交通大学出版社, 2012.
[2] 俞孟萨, 林立. 船舶水下噪声研究三十年的基本进展及若干前沿基础问题[J]. 船舶力学, 2017, 21(2):244-248 YU Meng-sa, LIN Li. Some progresses of underwater noise of ships in the recent thirty years and several new basic problems[J]. Journal of Ship Mechanics, 2017, 21(2):244-248
[3] 赵敏兰, 朱蓓丽. 用等效参数法研究含球形空腔弹性体的吸声性能[J]. 噪声与振动控制, 1996, 16(5):11-14 ZHAO Min-lan, ZHU Bei-li. Acoustic absorbing properties analysis of elastomer with spherical bores using equivalent parametric method[J]. Noise and Vibration Control, 1996, 16(5):11-14
[4] 陶猛, 赵阳. 基于反射系数测量的黏弹性材料动态力学参数反演方法[J]. 振动与冲击, 2014, 33(17):85-89 TAO Meng, ZHAO Yang. Inversion analysis of viscoelastic material dynamic parameters based on reflection coefficient measurement[J]. Journal of Vibration and Shock, 2014, 33(17):85-89
[5] 龚家元, 安俊英, 马力, 等. 覆黏弹层加肋双层板的声反射[J]. 声学学报, 2013, 38(3):326-337 GONG Jia-yuan, AN Jun-ying, MA Li, et al. Acoustic reflection of rib-stiffened double plates coated with a viscoelastic layer[J]., 2013, 38(3):326-337
[6] 张阳, 李桂娟, 王振山, 等. 改进的板块元遮挡算法[J]. 声学技术, 2016, 35(4):319-324 ZHANG Yang, LI Gui-juan, WANG Zhen-shan, et al. An improved plate element sheltering algorithm[J]. Technical Acoustics, 2016, 35(4):319-324
[7] MARBURG S. Six boundary elements per wavelength:is that enough?[J]. J. Comput. Acoust, 2002, 10(1):25-51
[8] GILROY L, DE JONG C, NOLTE B, SCHÄFER I. BeTSSi Ⅱ Benchmark Target Strength Simulation[C]//Forum Acusticum. Krakow, Poland, 2014.
[9] 金国梁, 尹剑飞, 温激鸿, 等. 基于等效参数反演的敷设声学覆盖层的水下圆柱壳体声散射研究[J]. 物理学报, 2016, 65(1):014305 JIN Guo-liang, YIN Jian-fei, WEN Ji-hong, et al. Investigation of underwater sound scattering on a cylindrical shell coated with anechoic coatings by the finite element method based on an equivalent parameter inversion[J]. Acta Phys. Sin., 2016, 65(1):014305
[10] MITRI F G. Calculation of the acoustic radiation force on coated spherical shells in progressive and standing plane waves[J]. Ultrasonics, 2006, 44(3):244-258