基于BP神经网络的整体叶盘电解加工阴极设计及流场仿真  

Cathode Design and Flow Field Simulation for ECM of Blisk Based on BP Neural Network

作　　者：田梦娟 薛润荣 张君[3] 薄佑锋 唐霖[1] TIAN Mengjuan;XUE Runrong;ZHANG Jun;BO Youfeng;TANG Lin(School of Mechatronics Engineering,Xi'an Technological University,Xi'an 710021,China;Xi'an Space Engine Company Limited,Xi'an 710100,China;China National Heavy Machinery Research Institute Co.,Ltd.,Xi'an 710018,China)

机构地区：[1]西安工业大学机电工程学院,陕西西安710021 [2]西安航天发动机有限公司,陕西西安710100 [3]中国重型机械研究院股份公司,陕西西安710018

出　　处：《电加工与模具》2025年第2期32-36,共5页Electromachining & Mould

基　　金：航天科技集团技术开发项目(HY2022-02);陕西省重点科研创新团队项目(2023-CX-TD-24);西安市科技计划科学家+工程师队伍建设项目(23KGDW0003-2022);陕西省产业化服务项目(23JC041);陕西省自然科学基础研究计划项目(2023-JC-QN-0538);陕西省教育厅青年创新团队建设科研计划项目(22JP032,23JP069)。

摘　　要：针对整体叶盘电解加工成形精度低的问题,提出一种基于BP神经网络的阴极型面设计方法,设计了整体叶盘前后缘供液结构,开展了整体叶盘间隙流场仿真及均匀性分析,探究了供液孔位置、进液口压力对流场分布的影响规律。结果表明,在进液孔与叶片中心距离5 mm、进液口压力1.6 MPa时,能很好地改善流场均匀性,在此参数条件下可实现叶片轮廓尺寸精度±0.03 mm、表面粗糙度Ra0.9 μm的整体叶盘稳定加工。In order to solve the problem of low forming accuracy in electrochemical machining,a cathode profile design method based on BP neural network was proposed.A liquid supply structure for the front and rear edges of the integral blade disc was designed,the simulation and uniformity analysis of the whole blade disk gap flow field were carried out,and the influence of the position of the cathode liquid supply hole and the inlet pressure on the flow field distribution was explored.The result showed that when the distance between the inlet hole and the blade center is 5 mm and the inlet pressure is 1.6 MPa,the uniformity of the flow field can be well improved.Under the previous parameter conditions,a stable machining of the overall blade disk could be achieved with a blade profile size accuracy of±0.03 mm and a surface roughness of Ra0.9μm.

关 键 词：整体叶盘 电解加工 流场均匀性 供液孔 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]