舰船自然腐蚀时腐蚀相关电场场源等效方法研究  

Study on equivalent method of field source for natural corrosion-related-electric field of ships

作　　者：蒋治国[1] 陈聪[1] 危玉倩 JIANG Zhi-guo;CHEN Cong;WEI Yu-qian(Dept. of Basic Courses, Naval Univ. of Engineering, Wuhan 430033, China)

机构地区：[1]海军工程大学基础部,武汉430033

出　　处：《海军工程大学学报》2020年第1期14-19,共6页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(51109215);海军工程大学自主立项资助项目(425517K102)。

摘　　要：为解决舰船腐蚀相关电场场源等效问题,从产生机理出发,根据实际舰船结构、海洋环境等条件,提出了舰船自然腐蚀时腐蚀相关电场场源的具体等效方法。该方法的基本场源为沿一定方向放置的异种金属对,并按一定方法将其等效为电偶极子或电流线。在实验室条件下,模拟海洋环境和舰船自然腐蚀时的基本场源,对该场源等效方法的正确性进行验证,验证过程中特别考虑到水域周边岸壁边界的影响。结果表明:所提出的场源等效方法是正确的,可用于对舰船自然腐蚀时水下腐蚀相关电场的分布特点进行预估,也可为舰船水下电场的其他应用提供理论依据。In order to solve the problem of the source equivalent of the corrosion-related electric field,the source and mechanism of corrosion-related electric field are analyzed when the ship is naturally corroded.According to the actual ship structure,marine environment and other conditions,the concrete equivalent method of corrosion-related electric field source is proposed.With the method the basic field source of the ship is the dissimilar metal pair placed along a certain direction,and it can be equivalent to the electric dipole or the current line in a certain way.Under the laboratory condition,the correctness of the equivalent method is verified by simulating basic source of ship natural corrosion-related-electric field and marine environment,for which the effect of the boundary of the bank wall is considered in particular.The results show that this method is basically correct.This method can be applied to estimate the distribution characteristics of the underwater electric field during the natural corrosion of the ship,and it also provides a theoretical basis for other applications of underwater electric field.

关 键 词：舰船腐蚀相关电场 基本场源 自然腐蚀 电偶极子 岸壁 

分 类 号：TJ6[兵器科学与技术—武器系统与运用工程]