基于键合图法的履带车油气弹簧阻尼阀特性分析  

Characteristic Analysis of Damping Valve in Hydro-pneumatic Suspension of Tracked Vehicle Based on Bonding-diagram

作　　者：聂维 何洪文[1] 雷强顺[2] 万义强[2] NIE Wei;HE Hongwen;LEI Qiangshun;WAN Yiqiang(School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China;Propulsion System Technologies Department,China North Vehicle Research Institute,Beijing 100072,China)

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081 [2]中国北方车辆研究所推进系统技术部,北京100072

出　　处：《兵工学报》2024年第8期2728-2736,共9页Acta Armamentarii

摘　　要：为优化车辆悬挂的阻尼特性,基于功率键合图法建立油气悬挂阻尼阀阻尼特性的参数化模型。针对阻尼阀压缩行程开阀前、开阀后和复原行程下不同工作模式,分析不同工作状态下阻尼阀的节流形式,结合流体力学知识建立阻尼阀压缩和复原行程的阻尼特性模型。通过模型仿真研究结构参数对阻尼阀特性的影响。设计流量试验台对阻尼阀特性仿真结果进行验证。研究结果表明,基于功率键合图法建立的阻尼阀特性模型可以准确地计算出阻尼阀的特性,减小单向阀芯上通孔2和通孔3的直径可以降低悬挂阻尼阀开阀点速度,调整通孔1和通孔4的直径可以在不影响开阀速度的条件下相应调整阻尼力,通孔6的直径只对复原行程的阻尼力产生影响。To optimize the damping characteristics of vehicle suspension,a parametric model for the damping characteristics of damping valve in hydro-pneumatic suspension is established based on the bonding diagram method.According to the dfferent working modes of damping valve before and after opening and closing during compression stroke and during recovery stroke,the throttling form of damping valve under different working conditions is analyzed,and a damping characteristic model for the compression and recovery strokes of damping valve are established by combining the knowledge of fluid dynamics.The influences of structural parameters on the compression stroke,recovery stroke and flow rate of valve opening point are analyzed by simulation.A flow test bench is designed to verify the simulation results of damping valve characteristics.The results show that the characteristic model of damping valve established by the bonding diagram method can accurately calculate the characteristics of damping valve,the diameters of orifices 2 and 3 in the spool are decreased to reduce the opening speed of damping valve,the diameters of orifices 1 and 4 are adjusted to regulate the damping force accordingly without affecting the opening speed,and the diameter of orifice 6 only affects the damping force on the recovery stroke.

关 键 词：履带车辆 阻尼特性 流体力学 油气弹簧 开阀速度 

分 类 号：TB123[理学—工程力学]