Page 43 - 《应用声学》2023年第3期
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第 42 卷 第 3 期 于小涛等: 有限元/边界元耦合方法在海洋生物目标强度特性研究的应用 481
用价值的是鱼群的散射特性 (如频率响应特征、平 [8] Gorska N. Modelling the acoustic effect of swimbladder
均单体 TS)。后续在单体 TS 特性研究的基础上,将 compression in herring[J]. ICES Journal of Marine Sci-
ence, 2003, 60(3): 548–554.
考虑生物集群中大量单体的体长、游泳倾角的统计
[9] Foote K G, Francis D T. Comparing Kirchhoff-
特征,分析生物集群的平均散射频率响应特征和平 approximation and boundary-element models for comput-
均单体 TS,推动 FEM/BEM 耦合方法实际应用于 ing gadoid target strengths[J]. The Journal of the Acous-
海洋生物资源声学资源评估。 tical Society of America, 2002, 111(4): 1644–1654.
[10] Clay C S. Composite ray‐mode approximations for
由于 FEM/BEM 耦合方法基于对目标几何的
backscattered sound from gas‐filled cylinders and swim-
网格化离散求解波动方程,计算结果的准确性很 bladders[J]. The Journal of the Acoustical Society of
大程度上取决于网格的疏密,一般网格最大尺寸 America, 1992, 92(4): 2173–2180.
[11] Clay C S, Horne J K. Acoustic models of fish: the Atlantic
不超过声波波长的 1/6。因此,频率越高 (目标尺
cod (Gadus morhua)[J]. The Journal of the Acoustical So-
寸与入射声波波长的比值越大),网格剖分越密, ciety of America, 1994, 96(3): 1661–1668.
FEM/BEM 耦合方法对计算能力的需求呈指数增 [12] Chu D, Foote K G, Stanton T K. Further analysis of tar-
长。考虑到未来研究生物集群的散射特性需在体长、 get strength measurements of Antarctic krill at 38 and
120 kHz: comparison with deformed cylinder model and
游泳倾角的二维空间进行统计平均,FEM/BEM耦
inference of orientation distribution[J]. The Journal of the
合方法计算过程中对频率、体长、游泳倾角3 个维度 Acoustical Society of America, 1993, 93(5): 2985–2988.
进行参数化扫描,计算量较大。因参数化扫描产生 [13] Stanton T K, Chu D. Review and recommendations for
的计算量,常用的解决方案是增加计算节点、利用 the modelling of acoustic scattering by fluid-like elongated
zooplankton: euphausiids and copepods[J]. ICES Journal
并行计算等方式。同时,可结合几何模型的优化,充 of Marine Science, 2000, 57(4): 793–807.
分利用目标的对称性以降低计算规模;对于具有不 [14] Zhao X. In situ target-strength measurement of young
规则几何形状的生物,可将其细分为更小的子域,合 hairtail (Trichiurus haumela) in the Yellow Sea[J]. ICES
Journal of Marine Science, 2006, 63(1): 46–51.
理设置网格大小,通过收敛性试验,保证一定计算精
[15] Zhao X, Wang Y, Dai F. Depth-dependent target strength
度的前提下,提高单次计算效率。 of anchovy (Engraulis japonicus) measured in situ[J].
ICES Journal of Marine Science, 2008, 65(6): 882–888.
[16] 蔺丹清, 张辉, 李君轶, 等. 4 种常见淡水养殖鱼类目标强度测
参 考 文 献 定与差异分析 [J]. 中国水产科学, 2017, 24(1): 1–10.
Lin Danqing, Zhang Hui, Li Junyi, et al. Target strength
of four freshwater cultured fish species and a variance
[1] Simmonds J, MacLennan D N. Fisheries acoustics: theory
analysis[J]. Journal of Fishery Sciences of China, 2017,
and practice[M]. 2nd Edition. Blackwell Science, 2005.
24(1): 1–10.
[2] 赵宪勇, 陈毓桢, 李显森, 等. 多种类海洋渔业资源声学评估
技术与方法 [C]. 我国专属经济区和大陆架勘测研究专项学术 [17] 尚晓明, 孔令民, 吴常文. 三种东海重要经济鱼类目标强度随
角度变化的椭球体模型及实验测定的研究 [J]. 海洋与湖沼,
交流会, 2005: 341–353.
[3] Korneliussen R J, Ona E. Synthetic echograms generated 2015, 46(3): 636–641.
from the relative frequency response[J]. ICES Journal of Shang Xiaoming, Kong Lingmin, Wu Changwen. On
Marine Science, 2003, 60(3): 636–640. target strength of several important economic fishes[J].
[4] 王新良, 赵宪勇, 左涛, 等. 黄海太平洋磷虾回波映像识别与 Oceanologia et Limnologia Sinica, 2015, 46(3): 636–641.
资源密度评估 [J]. 水产学报, 2016, 40(7): 1080–1088. [18] 于海圆, 赵宪勇. 鳀鱼 (Engraulis japonicus) 目标强度的模
Wang Xinliang, Zhao Xianyong, Zuo Tao, et al. Acous- 型法研究 [J]. 应用声学, 2007, 26(5): 267–276.
tical identification and density estimation of Euphau- Yu Haiyuan, Zhao Xianyong. Modeling study on the tar-
sia Pacifica in the Yellow Sea[J]. Journal of Fisheries of get strength of anchovy (Engraulis japonicus)[J]. Journal
China, 2016, 40(7): 1080–1088. of Applied Acoustics, 2007, 26(5): 267–276.
[5] Johnson R K. Sound scattering from a fluid sphere revis- [19] Tang Y, Nishimori Y, Furusawa M. The average three-
ited[J]. The Journal of the Acoustical Society of America, dimensional target strength of fish by spheroid model for
1977, 61(2): 375–377. sonar surveys[J]. ICES Journal of Marine Science, 2009,
[6] Furusawa M. Prolate spheroidal models for predicting gen- 66(6): 1176–1183.
eral trends of fish target strength[J]. The Journal of the [20] 张波. 鱼群声散射模型及其仿真研究 [D]. 哈尔滨: 哈尔滨工
Acoustical Society of Japan (E), 1988, 9(1): 13–24. 程大学, 2009.
[7] Stanton T K. Sound scattering by cylinders of finite [21] 杜伟东, 李海森, 陈宝伟, 等. 一种基于声散射特性的有鳔鱼
length. III. Deformed cylinders[J]. The Journal of the 特征获取方法 [J]. 应用声学, 2014, 33(6): 505–511.
Acoustical Society of America, 1989, 86(2): 691–705. Du Weidong, Li Haisen, Chen Baowei, et al. Features