CAJ | 학술논문

为准确评估某型6×6轮式越野车行驶动力学性能，建立了该越野车的整车多刚体动力学模型，分析了模型的振动固有特性和频率响应特性，并进行了特定工况下的行驶动力学特性仿真，计算了悬架动行程均方根值和车轮动载荷均方根值，分析了悬架与限位块的碰撞概率和车轮跳离地面的概率。结果表明：该动态工况下越野车的悬架设计工作空间满足使用要求，但行驶安全性能较差。
위준학평고모형6×6륜식월야차행사동역학성능，건립료해월야차적정차다강체동역학모형，분석료모형적진동고유특성화빈솔향응특성，병진행료특정공황하적행사동역학특성방진，계산료현가동행정균방근치화차륜동재하균방근치，분석료현가여한위괴적팽당개솔화차륜도리지면적개솔。결과표명：해동태공황하월야차적현가설계공작공간만족사용요구，단행사안전성능교차。
A mulit-rigid-body dynamic model of a 6WD wheeled off-road vehicle is established for accu- rately evaluating its ride dynamic performance. Then characters of natural vibration and frequency re- sponse of the model are analyzed with the results of the model' s dynamic simulation of given driving con- ditions, and the mean square root value of suspension working space and dynamic tire load are calculat- ed. An analysis of the probabilities of the suspension impacting bumpstop and the tire jumping off road surface has been made. The results show that the suspension working space satisfies demand but its ride security is poor. The methods of this research can be applied to vehicle engineering.