| 王慧，林兆伟，杨路春，王世鹏，朱仁传.基于间接时域法的船舶在波浪中运动计算研究[J].海洋工程,2025,(5):48~60 |
| 基于间接时域法的船舶在波浪中运动计算研究 |
| Investigation of ship motion in waves based on the indirect time-domain method |
| 投稿时间：2024-07-12 修订日期：2024-12-03 |
| DOI：10.16483/j.issn.1005-9865.2025.05.005 |
| 中文关键词: 间接时域法 波浪力 非线性运动 网格更新 运动响应 |
| 英文关键词:indirect time-domain method wave force non-linear motion mesh update motion response |
| 基金项目:国家自然科学基金联合基金项目“叶企孙”科学基金资助项目（U2141228） |
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| 中文摘要: |
| 针对中高速排水型船舶，基于三维移动脉动源格林函数，结合脉冲响应函数法求解时域绕射力和辐射力。同时基于弱非线性假设，考虑非线性入射波浪力、回复力与横摇阻尼的影响，采用间接时域法建立了中高速排水型船舶六自由度的弱非线性运动模型，通过傅里叶分析得到船舶在规则波中的运动响应。提出了网格重构法、干湿网格法与波面截切法3种瞬时船体湿表面网格更新方法。采用开发的数值计算程序对Wigley I和S175船舶运动响应进行计算，以验证数值方法的计算精度与船型适用性。结果表明，构建的船舶时域运动预报方法能较为准确地预报中高速排水型船舶的运动。 |
| 英文摘要: |
| In this paper, the three-dimensional translating pulsating source Green function and the impulse response function method are employed to solve the time-domain radiation and diffraction forces of moderate- and high-speed displacement ships. Under the assumption of week nonlinearity ,considering the effects of nonlinear incident wave forces, restoring forces, and roll damping, a weakly nonlinear six-degree-of-freedom motion model for moderate- and high-speed displacement ships is established using the indirect time-domain method. The ship's motion response in regular waves is obtained through Fourier analysis. This paper proposes three methods for updating the transient wet hull mesh: the regenerate mesh method, the dry-wet mesh method, and the wave-cut mesh method. The motion responses of Wigley I and S175 are computed using the developed numerical method to verify its accuracy and applicability to different hull types. The results show that the proposed method can predict the motions of moderate- and high-speed displacement ships with good accuracy. |
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