波浪作为无人水面船(Unmanned Surface Vessel,USV)的动力来源之一,波浪水翼的动能捕获能力与船体随波浪的振荡响应能力息息相关,为此展开了不同海况下波浪的长度、波浪的振幅、前后水翼的流场扰动对USV的振荡响应影响研究。首先建立Stokes五阶波的数值模型,与理论值对比验证后,将USV的多体动力学模型导入CFD软件进行模拟,绘制船体及翼板的响应曲线,随后设计海上实验平台进行验证,并与仿真结果进行对比。结果表明:波长与船长的比例决定了船体的响应频率,且在船长为波长的2/3时频率同步性最佳;波高则影响了船体的振幅,随波高的增加,船体及翼板的振荡角度同步增加,最高可达135.34%。
Wave as one of the driving forces of the unmanned surface vassal (USV), the hydrofoil in the capture mechanism has typically influence by the hull's oscillate with wave, so takes a serials of analyzes to find how the wave length, wave amplitude, flow field disturbance influenced the front and back hydrofoil on the oscillatory response of USV in different sea states. According to the CFD simulation to obtain the theoretical results, so as to obtain the response parameters under corresponding conditions, then the study will design an offshore experimental platform for verification. After comparison and analysis with the simulation results, suggestions were put forward for the design of USV in different working conditions. The results show that the ratio between wavelength and ship length determines the response frequency of the hull, and the frequency synchronization is the highest when the ship length is 2 / 3 of the wave length. And the wave height affects the amplitude of the hull. With the increase of wave height, the oscillation angle of the hull and wing plate hits to 135.34%.
2023,45(23): 85-90 收稿日期:2022-10-18
DOI:10.3404/j.issn.1672-7649.2023.23.015
分类号:U661.31
作者简介:武冬兵(1995-),男,硕士研究生,研究方向为自然能源AUV
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