高频电气喷射阀优化设计与试验  

Optimal Design and Test of High-speed Electro-pneumatic Ejector Valve

作　　者：向忠[1] 刘昊[1] 陶国良[1] 

机构地区：[1]浙江大学流体传动及控制国家重点实验室,杭州310027

出　　处：《农业机械学报》2009年第4期210-214,220,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50805128);高等学校博士学科点专项科研基金资助项目(20070335133);浙江省教育基金资助项目(20070057)

摘　　要：建立了高频电气喷射阀电磁铁的有限元分析模型。在静态有限元分析基础上,通过减小喷射阀衔铁外径及在其中心钻孔对电磁铁结构进行了优化设计。优化后模型的结构尺寸及提供的稳态电磁力均与优化前相当,而衔铁质量下降71%,故其加速度大幅上升,使得优化后模型的动态响应时间在各工作状况下均约缩短8%。最后,根据优化后电磁铁模型加工制造了电气喷射阀样机,并研制了其动态性能测试系统。试验与仿真结果吻合,验证了仿真模型的有效性。A finite element simulation model of the high-speed electro-pneumatic ejector valve actuator was built to analyze its steady state and transient performances. Optimal design was implemented by turning the fringe part and boring the center part of the armature base on steady state finite element analysis. Comparing with the original actuator, the optimized actuator has an almost 71% reducing in the armature weight whilst without significant steady state solenoid force loss in the actuator and without significant increase in structure dimensions that it gets a considerable improvement in armature acceleration, so the response times decrease by typically 8 % under different work conditions. Finally, prototype electro-pneumatic ejector valves were fabricated according to the optimized actuator model, and a test facility was also built up to obtain the valve＇s dynamics. The agreement between the simulation results and the experimental data proves the effectiveness of the simulation model.

关 键 词：高频喷射阀 优化设计 仿真 试验 

分 类 号：TH138.52[机械工程—机械制造及自动化] TM15[电气工程—电工理论与新技术]