摘要
液压换挡系统中的液压缓冲阀的性能与汽车换挡品质密切相关。以某重型车辆液压缓冲阀为研究对象,建立其AMESim仿真模型;以换挡系统充油压力为优化目标,通过时间乘绝对误差积分准则以及回归分析确定了优化函数;采用实验设计法分析得出对充油压力影响的Pereto图,并分析出液压缓冲阀对充油压力影响的参数为阻尼孔直径、弹簧刚度以及泄油孔直径。运用遗传算法进行优化,得出缓冲阀的最优结构参数取值。采用控制变量法进行的实验验证显示,通过遗传算法对缓冲阀结构参数进行优化后,换挡系统的性能显著提升,表现在充油压力的上升过程更加接近理想状态,从而显著改善了换挡的整体品质。
The performance of hydraulic buffer valves in hydraulic shift systems is closely related to the quality of vehicle shifting.Focusing on a hydraulic buffer valve used in a heavy-duty vehicle,its AMESim simulation model was established.With the filling pressure of the shift system as the optimization goal,the optimization function was determined through the time multiplied by absolute error integral criterion and regression analysis.The design of experiments method was used to analyze the Pereto chart of factors affecting the filling pressure,identifying the damping hole diameter,spring stiffness,and oil drain hole diameter as the critical parameters influencing the filling pressure.Genetic algorithm was used to optimize and the optimal structural parameter values were gained for the buffer valve.Experimental validation,conducted through the method of controlling variables,demonstrates that optimized structural parameters of the buffer valve significantly enhances the performance of the shift system.This is evident in the more ideal progression of filling pressure,which substantially improves the overall quality of shifting.
作者
强彦
郑天成
单乐
毛飞鸿
魏列江
QIANG Yan;ZHENG Tiancheng;SHAN Le;MAO Feihong;WEI Liejiang(College of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou Gansu 730050,China;China North Vehicle Research Institute,Beijing 100072,China)
出处
《机床与液压》
北大核心
2025年第5期129-134,共6页
Machine Tool & Hydraulics
基金
国家重点研发计划课题二(2022YFB3403002)。
关键词
液压缓冲阀
DOE分析
遗传算法
结构参数优化
hydraulic buffer valve
DOE analysis
genetic algorithm
structural parameter optimization
