China Mechanical Engineering

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Simulation and Experiments for Seven Spindled Hybrid Coupled Hydro Pneumatic Suspension Vehicles

TIAN Wenpeng1;YI Xiaogang1;GUO Lei2;GUO Yanjun2   

  1. 1.The National Engineering Laboratory for Highway Maintenance Equipment,Chang'an University, Xi'an,710061
    2.Sany Oil Intelligent Equipment Co.,Ltd.,Beijing,102202
  • Online:2018-05-10 Published:2018-05-09
  • Supported by:
    National Key Technology R&D Program (No. 2015BAF07B08)

七桥混合耦连油气悬架车辆仿真与试验

田文朋1;易小刚1;郭磊2;郭雁军2   

  1. 1.长安大学公路养护装备国家工程实验室,西安,710061
    2.三一石油智能装备有限公司,北京,102202
  • 基金资助:
    国家科技支撑计划资助项目(2015BAF07B08)
    National Key Technology R&D Program (No. 2015BAF07B08)

Abstract: A seventeen degrees of freedom dynamics model of vehicles was established based on the principles of seven spindled hybrid coupled hydro pneumatic suspension and vehicle model.A vehicle joint simulation model including Simulink model and AMEsim model was established based on Simulink platform.The time domain analog signals generated by white noise were used as simulation excitation to carry out joint simulation analysis.Combined simulation and actual road tests were carried out under the speed of 40km/h and 60km/h.The data show that the experimental results are in good agreement with the simulation results.The relative errors between the simulated data and the experimental data of the root mean square acceleration peak mean square root and power spectral density peak is less than 8%.It shows that the established simulation model has higher accuracy, which may be used as a basis for the study of vehicle characteristics.

Key words: seven spindled vehicle, hydro-pneumatic suspension, hybrid coupling, simulation and experiment

摘要: 将某七桥车辆的油气悬架系统混合耦连并对其原理和结构进行分析,建立了整车十七自由度动力学模型。基于整车结构和数学模型,以Simulink为主平台,搭建了整车的Simulink/AMESim联合仿真模型,仿真激励为白噪声法生成的相关性路面时域模拟信号。确定所需仿真参数后,进行整车的联合仿真和实际道路试验研究,得到了40 km/h和60 km/h车速下的对比曲线。对比结果显示,质心加速度均方根和功率谱密度峰值的仿真数据与试验数据的相对误差小于8%,仿真结果与试验结果基本吻合,说明所建立的整车模型具有较高的准确性,可以作为整车特性研究的依据。

关键词: 七桥车辆, 油气悬架, 混合耦连, 仿真与试验

CLC Number: