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作 者:孙强[1] 姜润翔 喻鹏 程锦房[1] SUN Qiang;JIANG Run-xiang;YU Peng;CHENG Jin-fang(College of Weaponry Engineering,Naval University of Engineering,Wuhan 430033,China;College of Electrical Engineering,Naval University of Engineering,Wuhan 430033,China)
机构地区:[1]海军工程大学兵器工程学院,湖北武汉430033 [2]海军工程大学电气工程学院,湖北武汉430033
出 处:《水下无人系统学报》2020年第6期657-662,共6页Journal of Unmanned Undersea Systems
基 金:国家自然科学基金(51509252);青岛国家海洋实验室项目资助(2017WHZZB0202).
摘 要:为实现基于控制参量k(补偿电流与轴电流之比)的电流补偿式舰船静电场隐身控制技术,利用边界元仿真软件研究了某型船在不同涂层破损率、不同涂层破损位置情况下的水下电场变化趋势和控制参量k最佳值的变化趋势。结果表明,最佳k值会随着涂层破损率增加而逐渐增大;靠近螺旋桨区域的局部涂层破损会对最佳k值产生影响,而船体中前部局部涂层破损对最佳k值影响较小。之后利用缩比模型试验研究了螺旋桨转速对最佳k值的影响,结果显示,不同转速情况下水下电场最大抑制比不一致,但是最佳k值基本不变。To produce a stealth control technology for the static electric field of a ship with current compensation based on the control parameterk(i.e.,the ratio of the compensation current to the shaft current),this study analyzes variation trends in the underwater electric field and the optimal value ofk.Specifically,the study employs boundary element simulation software to assess a ship with different degrees of coating damage and different coating damage positions.Results show that the optimal value ofkgradually increases with the rate of coating damage.In addition,damage localized near the propeller affects the optimal value ofk,unlike that in the middle anterior of the hull.The effect of propeller rotational velocity on the optimal value ofkis also studied based on a scaled ship model experiment,with results showing that the optimal value ofkis not affected by the rotational velocity.Results also show that the maximum suppression ratios of the underwater electric field are different under different rotational velocities.
分 类 号:U663.2[交通运输工程—船舶及航道工程] O441.4[交通运输工程—船舶与海洋工程]
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