竖直岸壁对舰船水下标量电位分布的影响研究  

Influence of Vertical Bank on Underwater Electric Field Distribution of Ships

作　　者：杨靖玄 陈聪[1] 孙嘉庆 谭浩[1] 司理锋 杜初阳 YANG Jingxuan;CHEN Cong;SUN Jiaqing;TAN Hao;SI Lifeng;DU Chuyang(Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学,武汉430033

出　　处：《兵器装备工程学报》2020年第3期1-7,共7页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金项目(51109215);海军工程大学自然科学自主立项项目(425317Q011)。

摘　　要：为研究竖直岸壁对舰船水下标量电位分布的影响,采用水平电偶极子作为舰船电场等效场源,基于稳恒电场镜像理论,推导了表征竖直岸壁对舰船水下标量电位分布影响的数学表达式;采用数值仿真的方法,就竖直岸壁对舰船水下标量电位分布的影响规律开展研究。结果表明:随岸壁、场点相对方位改变,竖直岸壁对标量电位的影响具有明显的方位指向性;与舰船航向平行的岸壁可使除舰船中横剖面外所有场点处的标量电位绝对值增加,且场点距离岸壁边界越近,其量值以及对称性受到影响越大。在实验室中模拟了同时存在四个方位竖直岸壁的海洋环境,实测模拟场源下方一定深度平面上的标量电位分布,通过和仿真结果的对比,验证了理论推导以及仿真研究结论的正确性。In order to study the vertical bank’s influence on the underwater electric scalar potential produced by a ship in seawaters,the horizontal DC electric dipole was used as the equivalent field source.Based on the mirror theory of static electric field,the expressions for characterizing the vertical bank’s influence on the underwater electric scalar potential distribution of ship were derived.The influence of the vertical bank parallel to the ship’s course on the underwater electric scalar potential distribution was studied by numerical simulation.Simulation results show that the effect of the vertical bank on the scalar potential has obvious orientation directly with the change of the relative azimuth of the vertical bank and the field point,the bank which parallels to the ship’s course can increase the absolute value of scalar potential except the midship plane.The closer the field point is to the bank,the greater the influence of its value and symmetry.The marine environment with four azimuthal bank boundaries was mimicked in laboratory,and the scalar potential distribution on a certain depth plane under the simulated field source was measured.These theoretical derivation and research conclusions of simulation were further confirmed by comparing simulation results.

关 键 词：舰船水下标量电位 直流电偶极子 竖直岸壁 镜像法 对称性 方位 

分 类 号：TJ6[兵器科学与技术—武器系统与运用工程]