采用电隔离措施是减小舰船腐蚀静电场的重要方法之一，为了解决电隔离措施方法中根据目标电场估算出最小隔离电阻大小的关键技术问题，首先，建立船体异种金属材料之间的电化学腐蚀电路模型；其次，在点电极理论基础上，建立了绝缘船体和非绝缘船体2种条件下异种金属材料下方的电场值和腐蚀电流的关系，并得到了最小隔离电阻与电场值之间的函数表达式；最后，利用边界元仿真软件对所提方法的正确性进行检验，结果表明，所提方法能够准确预测最小隔离电阻值。
Electric isolation measuring is one of the important methods of reducing the ship's corrosion related static electric field. In order to solve the key technical problem of estimating the minimum isolation resistance based on the electric field of target,firstly, the electrochemical corrosion circuit model between dissimilar metal materials of ship hull is established. Secondly, the relationship between electric field and corrosion current at the bottom of dissimilar metal material under the condition of both insulation and un-insulation hull was established based on point charge model, and the mathematical formula between the minimum insulated resistance and corrosion related static electric field has been proposed. Finally, the correctness of the proposed method was tested by BEM software simulated data, the results show that the proposed method can predict the minimum isolation resistance accurately.
2018,40(8): 123-127 收稿日期：2017-03-08
DOI：10.3404/j.issn.1672-7649.2018.08.024
分类号：O411.1
基金项目：国家自然科学家基金资助项目（51509252，41476154）
作者简介：喻鹏(1991-),男,硕士研究生,研究方向为军用目标特性及信息感知技术
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