噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2015年
2期
61-64
,共4页
振动与波%横向稳定器%四自由度%刚度系数%Matlab/Simulink
振動與波%橫嚮穩定器%四自由度%剛度繫數%Matlab/Simulink
진동여파%횡향은정기%사자유도%강도계수%Matlab/Simulink
vibration and wave%anti-roll bar%four-DOF%stiffness coefficient%Matlab/Simulink
以某款轿车的横向稳定器为研究对象,研究其在行驶过程中对车辆侧倾性能的影响。首先建立装有横向稳定器的四自由度的车辆悬架系统数学模型,采用Matlab/Simulink工具箱进行仿真分析。然后以随机路面激励和稳定器刚度系数作为输入量,以汽车悬架的质心速度、侧倾角速度和悬架的变形作为输出量。通过对比仿真曲线,得知装有横向稳定器的悬架系统与无横向稳定器的悬架系统相比,车身侧倾角度减小,操纵稳定性和行驶安全性有一定程度的改善。
以某款轎車的橫嚮穩定器為研究對象,研究其在行駛過程中對車輛側傾性能的影響。首先建立裝有橫嚮穩定器的四自由度的車輛懸架繫統數學模型,採用Matlab/Simulink工具箱進行倣真分析。然後以隨機路麵激勵和穩定器剛度繫數作為輸入量,以汽車懸架的質心速度、側傾角速度和懸架的變形作為輸齣量。通過對比倣真麯線,得知裝有橫嚮穩定器的懸架繫統與無橫嚮穩定器的懸架繫統相比,車身側傾角度減小,操縱穩定性和行駛安全性有一定程度的改善。
이모관교차적횡향은정기위연구대상,연구기재행사과정중대차량측경성능적영향。수선건립장유횡향은정기적사자유도적차량현가계통수학모형,채용Matlab/Simulink공구상진행방진분석。연후이수궤로면격려화은정기강도계수작위수입량,이기차현가적질심속도、측경각속도화현가적변형작위수출량。통과대비방진곡선,득지장유횡향은정기적현가계통여무횡향은정기적현가계통상비,차신측경각도감소,조종은정성화행사안전성유일정정도적개선。
Influence of the anti-roll bar on the roll performance of a vehicle was studied. A four-DOF mathematical model of the suspension system of the vehicle with an anti-roll bar was established. Simulation of the model was carried out by means of Matlab/Simulink. In the simulation, the response curves under random road-profile excitation and the stiffness coefficient of the anti-roll bar were given as the input. The response curves of the body vertical velocity, the body roll angle and the suspen-sion dynamic deflection were obtained. Compared with those without anti-roll bars, the simulation results show that the body roll angle is reduced obviously by using the anti-roll bar. Meanwhile, the vehicle handling stability and ride comfort are im-proved.