水下拖曳浮标系统要素匹配性分析

Element Matching Analysis Method for Underwater Towed Buoy Systems

水下拖曳浮标系统是水下航行器隐蔽通信和定位的重要手段之一,浮标、拖缆和拖带平台三要素之间的相互匹配对系统的使用至关重要。基于Ablow和Schechter提出的经典拖缆动力学分析方法,以某水下拖曳浮标系统为研究对象,研究分析了拖曳速度、拖带深度、浮标俯仰角等因素变化对拖缆位形和张力的影响;以满足拖带安全性和最小化拖带负荷为目标,建立了一种浮标、拖缆与拖带平台三要素匹配分析方法,分析了不同工况下的最优匹配规律,并提出了绞车及浮标相应的控制期望目标。研究结果表明:存在浮标最优俯仰角,使水下拖曳浮标系统满足拖带安全性、拖带负荷最小等要求,且最优俯仰角随拖曳速度的减小、拖带深度的增大而逐渐增大。

An underwater towed buoy system is an important means of undersea vehicle concealed communication and positioning. To utilize this system, it is crucial to match the buoy, tow cable, and towed vehicle. In this study, based on the classical method proposed by Ablow and Schechter for analyzing towed cable dynamics, we investigated the influence of towing velocity, towing vehicle depth, and buoy’s pitch angle on the tow cable’s shape and tension, considering an underwater towed buoy system as the research object. To meet the requirements of towing security and minimize the towing vehicle load, we established an analysis method for matching the buoy, tow cable, and towing vehicle, obtained the optimal matching law under different working conditions, and proposed the corresponding control expectation target of the winch and buoy. The results demonstrate that the buoy optimal pitch angle, which ensures that the underwater towed system fulfils the towing safety and minimum towing load requirements, increases with decreasing towing velocity and increasing towing depth.