Numerical simulation of the effect of electrochemical modification of 3D carbon fiber fabrics
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摘要: 针对炭纤维三维织物电化学改性处理过程复杂和处理效果难于表征的问题, 提出了采用数值模拟的方法进行分析的方案。针对三维织物的结构特点, 采用"宏观均匀模型"的基本思想, 构建了三维织物电化学改性数学模型。利用该模型对织物改性过程进行数值模拟, 形象地描述了织物整体改性条件, 直观地评价了织物整体改性效果。同时发现三维织物存在内外处理效果不均一的现象, 其根本原因是织物内电解质浓度分布不均一。对此提出了三维织物间歇式电化学改性处理方案, 以改善织物内外处理效果的均一性。Abstract: The numerical simulation was adopted as a novel method to analyze the process and the effect of electrochemical modification of the 3D carbon fiber fabrics. A mathematical model of electrochemical modification of 3D carbon fiber fabrics was constructed on the principle of the macroscopic model. The mathematical model was used to simulate the process of fabric modification. The solution describes the treatment conditions of every part in the fabrics clearly and predicts the effect of the whole fabrics visually. The results indicate that the non-uniform modification existed in the fabrics, and the reason for this is the non-uniform distribution of the electrolyte in the fabrics. An intermittent electrochemical treatment method is raised to improve the effect of electrochemical modification of the whole 3D carbon fiber fabrics.
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