液压与气动2026，Vol.50Issue(6)：40-51,12.DOI:10.11832/j.issn.1000-4858.2026.06.005
基于正交试验的反向随动比例阀频率响应特性优化
Optimization of Frequency Response Characteristics of Reverse Follow-up Proportional Valve Based on Orthogonal Test
摘要
Abstract
To address the insufficient working frequency bandwidth,large pilot spool dead zone,and low steady-state control accuracy of a reverse follow-up proportional valve,we target three key structural parameters of the feedback valve port:notch depth,notch length,and notch angle.A mathematical model of the valve is established.The influence of these parameters on the system corner frequency and dynamic characteristics is analyzed.An orthogonal test with three factors and five levels is designed.The dead zone of the pilot spool,displacement ratio,and flow area gradient are used as evaluation indicators.Range and variance analysis determine the weight and significance of each structural parameter.The optimization scheme is validated by AMESim dynamic simulation and prototype tests.Results show that the optimized valve achieves a stable displacement ratio of about 1.17,an 11.09％reduction in pilot spool dead zone,an effective working frequency increased from 20 Hz to 35 Hz,and an opening/closing time below 14 ms,significantly improving the dynamic response characteristics of the reverse follow-up proportional valve.关键词
反向随动比例阀/正交试验/频率响应/反馈阀口Key words
reverse follow-up proportional valve/orthogonal test/frequency response/feedback valve port分类
机械制造引用本文复制引用
周宇恒,闵为,王佳敏,连杰..基于正交试验的反向随动比例阀频率响应特性优化[J].液压与气动,2026,50(6):40-51,12.基金项目
国家自然科学基金(52165007) （52165007）
