Study of Quick Prediction Method for Ship Corrosion Related Static Electric Field Based on Point Charge Source Model

doi:10.3969/j.issn.1000-1093.2017.04.015

Abstract

Abstract: A method of rapidly establishing the prediction model based on the point charge source is proposed for the prediction of ship corrosion related static electric field. The reasonable division of ship structure is set, and the mixed potential of ship is calculated based on mixed electrode potential. The functional relationship between potential and current of point electrode is established based on the material polarization curve and the electrochemical system’s current sum which is zero. The current of point electrode is calculated using least squares method, and the ship corrosion related static electric field is predicted using the potential calculation method of point charge under three-layered medium. The effectiveness of the proposed method is verified by using the surface ship simulation data and the ship model test results. The results show that the proposed method can be used for fast prediction of ship corrosion related static electric field. Key

Key words: electromagnetics, ship, corrosion, staticelectricfield, pointchargesource, electricmulti-polemoment, anode, cathode, polarizability

CLC Number:

O441.1

JIANG Run-xiang， ZHANG Jia-wei， LIN Chun-sheng. Study of Quick Prediction Method for Ship Corrosion Related Static Electric Field Based on Point Charge Source Model[J]. Acta Armamentarii, 2017, 38(4): 735-743.

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第38卷
第4期2017 年4月兵工学报ACTA
ARMAMENTARIIVol.38No.4Apr.2017

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