摘要
为了提高汽车行驶过程中不同路面的平顺性和运行稳定性,在分析阻尼调节阀结构的基础上,设计了一种具有阻尼调节阀的液压减振器。该减振器中的阀芯在衔铁推动下发生运动,实现进出油口流量与压力调节,达到减振器呈现阻尼特性的效果。研究结果表明:改变激励电压并不会造成响应时间的明显变化。增大阀芯负载压差将引起阀芯上升时间增加并达到更长的响应时间。随着阻尼系数的提高,上升时间也发生了逐渐增加。当提高衔铁质量后,阀芯可以在更短时间内完成触动响应,阀芯需经过更长时间完成上升与响应过程。通过实验验证了该可调阻尼减振器设计满足目标阻尼的要求,对提高汽车运行舒适性具有很好的理论价值,且易于推广。
In order to improve the smoothness and running stability of different road surfaces,a hydraulic shock absorber with a damping control valve is designed based on the structural analysis of the damping control valve.The valve core in the shock absorber moves under the armature,and the flow and pressure in and out of the oil port are adjusted to achieve the effect that the shock absorber presents damping characteristics.The results show that the response time does not change significantly when the excitation voltage is changed.Increasing the spool load pressure difference will cause the spool rise time to increase and achieve a longer response time.With the increase of the damping coefficient,the rise time also increases gradually.When the quality of the armature is improved,the spool can complete the touch response in a shorter time,and the spool needs to complete the rise and response process in a longer time.It is verified by experiments that the design of the adjustable damper meets the requirements of target damping,and has good theoretical value for improving the running comfort of the vehicle,and is easy to be popularized.
作者
张梅红
魏冬至
张明柱
ZHANG Meihong;WEI Dongzhi;ZHANG Mingzhu(Henan Vocational College of Industry and Trade,Department of Mechanical and Electrical Engineering,Zhengzhou 451191,China;Department of Mechanical Manufacturing,Zhengzhou Technician College,Zhengzhou 450000,China;School of Mechanical and Electrical Engineering,Henan University of Science and Technology,Zhengzhou 450000,China)
出处
《机械设计与研究》
CSCD
北大核心
2023年第6期75-79,共5页
Machine Design And Research
基金
河南省高等学校重点科研项目(23B460022)。
关键词
液压减振器
阻尼调节阀
动态特性
参数优化激励电压
hydraulic shock absorber
damping regulating valve
dynamic characteristics
parameter optimization
excitation voltage
