矿用宽体车互联式油气悬架系统平顺性分析  

Ride comfort analysis of interconnected hydro-pneumatic suspension system of mine wide-body vehicle

作　　者：靳航 雷贤卿[1] 周鑫 南迪 JIN Hang;LEI Xianqing;ZHOU Xin;NAN Di(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003

出　　处：《机电工程》2024年第7期1160-1169,共10页Journal of Mechanical & Electrical Engineering

基　　金：山东省重点研发计划项目(2019GHZ013);扬州市科技计划项目(YZ2019019)。

摘　　要：采用钢板弹簧悬架的矿用宽体车难以获得良好的行驶平顺性,为此,提出了一种刚度阻尼可调的互联式油气悬架系统。首先,阐述了互联式油气悬架系统的工作原理,建立了油气悬架系统的数学模型;其次,运用AMESim软件搭建了互联式油气悬架系统和钢板弹簧悬架的仿真模型,确定了仿真模型中的主要参数;最后,在D级随机路面激励下进行了匀速和加速-制动运行工况的车辆行驶平顺性仿真研究,并对仿真结果进行了分析。研究结果表明:与钢板弹簧悬架相比,匀速和加速-制动的空载工况下,互联式油气悬架系统的车身加速度均方根值分别下降了38.7%和38.8%,车轮动载荷均方根值分别增加了3.1%和0.5%,不影响车轮的接地性,悬架动挠度均方根值分别增加了41.6%和39.7%,悬架撞击限位块的概率小于0.1%,满足设计要求;匀速和加速-制动的满载工况下,互联式油气悬架系统的车身加速度、车轮动载荷、悬架动挠度三项平顺性评价指标均得到改善。该结果证明互联式油气悬架系统可提升车辆的行驶平顺性,为矿用宽体车油气悬架系统设计提供参考。It is difficult to obtain good ride comfort for mine wide-body vehicle with leaf spring suspension.Therefore,an interconnected hydro-pneumatic suspension system with adjustable stiffness and damping was proposed.Firstly,the working principle of interconnected hydro-pneumatic suspension system was described.And the mathematical model of hydro-pneumatic suspension system was established.Then,the simulation model of interconnected hydro-pneumatic suspension system and leaf spring suspension was built by AMESim software.The main parameters of the simulation model were determined.Finally,under D-class random road excitation,the simulation study on vehicle ride comfort under uniform speed and acceleration-braking conditions was carried out.And the simulation results were analyzed.The research results indicate that compared with the leaf spring suspension,under the empty load condition of uniform speed and acceleration-braking,the root mean square of body acceleration of the interconnected hydro-pneumatic suspension system is respectively decreased by 38.7%and 38.8%.The root mean square of the wheel dynamic load is respectively increased by 3.1%and 0.5%and grounding of the wheel is not affected.The root mean square of suspension dynamic deflection is respectively increased by 41.6%and 39.7%.The probability of suspension hitting the limit block is less than 0.1%,meeting the design requirements.Under the full load conditions of uniform speed and acceleration-braking,the three ride comfort evaluation indexes of body acceleration,wheel dynamic load and suspension dynamic deflection of the interconnected hydro-pneumatic suspension system are improved.The results show that the interconnected hydro-pneumatic suspension system can improve ride comfort of the vehicle,which can provide a reference for the design of hydro-pneumatic suspension system for mine wide-body vehicle.

关 键 词：钢板弹簧悬架 车辆行驶平顺性 油气悬架系统数学模型 刚度阻尼 D级随机路面 匀速工况 加速-制动工况 

分 类 号：TH137.5[机械工程—机械制造及自动化] TD52[矿业工程—矿山机电] U463.33[机械工程—车辆工程]