波浪中水面船舶与拖曳系统耦合运动特性计算方法研究  

Numerical Research on Couped Motions of Surface Vessel and Towing System in Waves

作　　者：孙小帅 马骋 钱正芳 姚朝帮 SUN Xiaoshuai;MA Cheng;QIAN Zhengfang;YAO Chaobang(China Marine Development and Research Center,Beijing 100161,China;School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]中国海洋开发研究中心,北京100161 [2]华中科技大学船舶与海洋工程学院,武汉430074

出　　处：《中国造船》2022年第5期71-81,共11页Shipbuilding of China

基　　金：国家自然科学基金资助项目(50879090,51509256);航空科学基金资助项目(20152316005)。

摘　　要：针对波浪中水面船舶和拖曳系统的耦合运动特性问题,基于已建立的船体运动计算模型,采用有限差分法求解拖缆动力学方程。通过边界条件与拖体的6自由度运动耦合,建立了波浪中水面船舶与拖曳系统耦合运动特性的时域计算方法,模拟配备拖曳阵的水面船舶在规则波中的运动,分析船体和拖曳阵的相互影响。结果表明,拖曳阵对水面船舶耐波性的影响较小,主要原因在于拖缆首端与船体之间的夹角变化很小,导致拖缆首端拖点处的张力在船体垂直方向的分量变化较小。Coupled motion performance of a surface vessel and undersea towing system in waves was investigated.Motions of the surface towing vessel were obtained by utilizing the panel method based on Green function of three-dimensional translating-pulsating sources and the retardation function. Dynamic equation of the towing cable was solved with the finite difference method. Motion of the towed body was modelled by the motion equations. Numerical simulation was conducted to study motions of a surface vessel equipped with a towed array in regular waves, and hydrodynamic interaction between the surface vessel and the towed array was analyzed. The results indicate that the influence of the towed array on the seakeeping performance of the vessel can be ignored. The reason is that the fluctuation of the angle between the head end of the towing cable and the surface vessel is very small, which results in a tiny fluctuation of the tension on the hull in the vertical direction.

关 键 词：拖曳系统 耦合运动特性 拖缆 移动脉动源格林函数 

分 类 号：U661.1[交通运输工程—船舶及航道工程]