摘要
无人艇在回收过程中会受到复杂海况及母船尾流的综合影响。因此,开展不同环境条件下无人艇回收过程动态响应特性及变化规律研究,对实现无人艇安全平稳回收具有重要意义。以某型无人艇为研究对象,建立无人艇回收动态仿真数值模型,并通过加载4级海况不规则波,研究无人艇回收过程动态特性。在此基础上,对比分析不同的相对航速、偏移距离对无人艇回收过程动态特性的影响规律。研究结果表明,标准工况下无人艇的回收满足航行稳定性、回收时的快速性和安全性要求。同时,在4级海况及尾流综合作用下,增加无人艇回收航速或增大无人艇与母船中心线偏移量时,无人艇的运动将出现较大波动,稳定性下降。在实际回收过程中无人艇的回收航速不能过高,与母船中心线之间的偏移距离应保持在一定范围内,确保无人艇运动幅值不超过安全极限,避免倾覆现象的发生。
During the recovery process,USV is affected by the complex sea conditions and the wake of the mother ship.Therefore,in order to realize the safe and stable recovery of the USV,it is of great significance to carry out research on the dynamic response characteristics and changing laws of the recovery process of the USV under different environmental conditions.Taking a certain type of USV as the research object and establishes a dynamic simulation numerical model for it’s recovery.Then loading irregular waves of fourth-level sea condition to study the dynamic characteristics of the recovery process of the USV.On this basis,the effects of relative speed and offset distance on the dynamic characteristics of USV recovery are analyzed.The research results show that the recovery of the USV under standard condition meets the requirements of navigation stability,rapidity and safety.At the same time,under the combined effect of the fourth-level sea condition and wake,when the recovery speed of the USV is increased or the offset of the centerline of the USV and the mother ship is increased,the motion of the USV will fluctuate greatly and the stability will decrease.In the actual recovery process,the speed of the USV should not be too high,and the offset distance from the center line of the mother ship should be kept within a certain range to ensure that the motion amplitude of the USV does not exceed the safety limit and avoid overturning happened.
作者
杜杰星
叶晓明
贾如
王泉斌
李伟光
高瀚林
DU Jie-xing;YE Xiao-ming;JIA Ru;WANG Quan-bin;LI Wei-guang;GAO Han-lin(School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;China Ship Development and Design Center,Wuhan 430064,China)
出处
《舰船科学技术》
北大核心
2023年第7期98-105,共8页
Ship Science and Technology
关键词
无人艇
尾流
海况
四自由度操纵运动
运动响应
USV
wake flow
sea condition
four-degree-of-freedom steering motion
motion response
