船舶拖曳潜体回转和收放作业仿真

Simulation of the towed body under turning and retraction

为了对潜体拖曳系统的运动进行预判,并能快速且正确地得到船舶拖曳的潜体在水下不同时刻的位置和缆绳形态图,采用改进的集中质量法对拖曳系统进行数学建模,模拟水下拖曳系统不同工作状态下的运动形态,并对潜体的回转作业和收放作业进行简化。结果显示:水下拖曳潜体做回转运动时,拖曳潜体系统形成闭合的圆形回路;做收放运动时,拖曳系统随着时间的增加长度逐渐增加,从而完成潜体的收放操作。通过对海上船体拖曳系统运动规律的预测,以及对拖体拖曳系统的直航、回转和收放工况的研究,得到了拖曳系统的缆形的实时分布,以及潜深和拖曳潜体系统最大拉力之间的大小对应关系。

This paper briefly describes the important role of underwater towed operation, but in its practical operation, the towed body turning and retractable jobs are of vital importance. By using the lumpedmass method, the towed body is simulated utilizing the principles of calculus. When the turning motion ofthe towing vessel acts on a towed body, the flexible cable connection will change accordingly. Moreover, dif-ferent swing factors（boat speed） will also affect towing performance. Finally, this paper presents the detailed calculation of the movement of the potential towed body.