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针对叶片电化学加工过程难以预测、实验参数修正周期长的问题,建立与温度相关的叶片多场耦合仿真模型,基于COMSOL Multiphysics平台对叶片电化学加工过程进行多场耦合仿真,仿真分析了不同加工电压和不同进液流量对法向平衡间隙的影响。结果表明:加工电压越大,间隙也相应增大,且间隙分布越不均匀;进液流量越大,间隙分布越均匀。采用其中一组仿真参数进行工艺实验,仿真与实验的对比结果表明,叶片轮廓曲率变化缓慢处的仿真结果和实验结果比较贴合,而轮廓曲率变化较快处的仿真值与实验值差别相对较大,但两者的变化趋势相同。
In order to solve the problem that it is difficult to predict the electrochemical machining process of the blade and long the experimental parameters are corrected, a multi-field coupled simulation model of the blade is established. Based on the COMSOL Multiphysics platform, multi-field coupling simulation of the electrochemical machining process is carried out. Effect of Voltage and Different Influent Flow on Normal Balance Gap. The results show that the larger the machining voltage is, the larger the gap is, and the more uneven the gap distribution. The larger the inlet flow rate, the more uniform the gap distribution. One set of simulation parameters was used to carry out the process experiment. The simulation results and the experimental results show that the simulation results and the experimental results of the slow change of the blade profile curvature are in good agreement with each other, while the simulation values and the experimental values are relatively fast Big, but both have the same trend of change.