便携式侧扫声呐具备尺寸小、重量轻的特点，可快速搭载于水面舰艇上，便于运输与使用。声呐拖体的拖曳姿态由重力、浮力、水动力和牵引力共同决定，采用有限元软件对该声呐拖体进行水动力仿真，根据力矩平衡方程计算不同流速下，声呐拖体的水动力性能与拖曳稳态纵倾角，并与拖曳试验结果进行对比，验证了仿真结果的准确性。采用有限元方法，对配备不同角度助潜翼和尾翼的拖体模型进行纵倾角仿真计算，将声呐拖体的纵倾角由15°优化至10°以内。仿真结果经试验验证有效，可为声呐拖体的拖曳姿态研究提供参考。
Portable side scan sonar has the characteristics of small size and light weight. It can be quickly carried on surface ships, which is convenient for transportation and use. The towing attitude of the sonar towing body is determined by gravity, buoyancy, hydrodynamic force and traction force. The hydrodynamic simulation of the sonar towing body is carried out by using finite element software. The hydrodynamic performance and towing steady-state trim angle of the sonar towing body under different flow velocities are calculated according to the moment balance equation, and compared with the towing test results to verify the accuracy of the simulation results. The finite element method is used to calculate the trim angle of the towed body equipped with different angle auxiliary submerged wings and tail wings. Finally, the trim angle of the sonar towed body is reduced from 15° to less than 10°. The simulation results are proved to be effective by experiments, which can provide a reference for the study of the towed attitude of sonar towed body.
2023,45(13): 119-123 收稿日期：2022-07-30
DOI：10.3404/j.issn.1672-7649.2023.13.024
分类号：U666.7
作者简介：张沛心(1991-)，女，硕士，工程师，研究方向为声呐结构设计与流体仿真
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