【摘要】 针对汽车电泳过程中,现场影响因素复杂,过程控制要求高,质量问题分析不足,根据流体NS方程、连续方程、动量守恒方程、能量守恒方程及麦克斯韦方程建立了全耦合数学计算模型,应用ECoatMaster有限元分析软件,对三维状态下的汽车电泳工艺进行全耦合场计算机仿真分析,得到了整车电流密度分布及漆膜厚度分布。结果表明,在全耦合计算机仿真分析过程中,应用ECoatMaster软件能有效计算电泳液属性、阳极管排布、电压特性和行车轨迹特性对汽车电泳性能的影响,所得整车外板及B柱内腔膜厚的不同开孔位置膜厚差异,并与已有试验结果及研究数值吻合良好。更多还原

【Abstract】 Aiming at the defects predict of automotive E-coating process in difficult conditions and high quality control,according to the N-S equation,continuality equation,momentum conservation equation,energy conservation equation and Maxwell equations,applying ECoatMaster finite element software,the E-Coating process 3Dfield under fully coupled conditions to predict electric current distribution and painting film distribution is analyzed.The results show that the paint characters,anodes distribution,voltage setting and vehicle trajectory will effect film distribution.The film distribution in outer vehicle and B-pillar is differently based on the sharp and product design.It is well consistent with experimental and research results.更多还原