设计了海水中铝基牺牲阳极阴极保护35钢的电极电位分别处于保护范围内、过保护、欠保护状态下的物理模型,推导Laplace方程的弱形式,方便了有限元程序设计.利用Kriging网格化插值法比较了有限元计算和实验数据.结果表明,有限元法模拟计算三种保护状态下的电位分布接近测量值.
Physical models of cathodic protection for 35-steel by. aluminum sacrificial anode in seawater were built under different conditions of normal cathodic protection, over-protection and under-protection, respectively. And the weak form of Laplace equation was deduced to make finite element method (FEM) numerical calculation conveniently. The comparison of FEM data and measured experimental data was made by Kriging gridding interpolation. The results show that the potential distributions under three protection conditions simulated by FEM approximated to measured experimental results.
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