一系悬挂参数对车辆动力学性能的影响  

Influence of Primary Suspension Parameters on Vehicle Dynamic Performance

作　　者：张雯娣[1] 颉方正[1] 

机构地区：[1]兰州石化职业技术学院汽车工程系,甘肃兰州730070

出　　处：《机械研究与应用》2015年第3期91-92,共2页Mechanical Research & Application

摘　　要：运用多体动力学SIMPACK软件建立车辆动力分析模型,仿真模拟车辆模型在高低和方向不平顺复合轨道谱激励下以200km/h时速行驶时一系悬挂系数对车辆动力学性能的影响,分析一系纵向定位刚度在0.5～1.5MN/m范围变化时和-系垂向阻尼在15～25kN·s/m范围变化时,对车辆系统脱轨系数、倾覆系数、轮轨力和车体加速度的影响.The dynamic analysis model of vehicle is built by using the multibody dynamics software SIMPACK, and analoguesimulation of the impact that the primary suspension parameters on vehicle dynamics performance when the vehicle model trav-els at speed of 200km/ h under the irregularity in the level and direction of complex orbital excitation spectrum is conducted.Influences to the derailment coefficient, the overturning coefficient, the wheel-rail forces and the car body acceleration of ve-hicle systems by changes of the primary vertical positioning stiffness from 0. 5 to 1. 5 MN/ m and changes of the primary verticaldamping from 15 kN·s/ m to 25 kN·s/ m are also analyzed.

关 键 词：一系悬挂参数 纵向定位刚度 垂向阻尼 

分 类 号：U271.91[机械工程—车辆工程]