摘要
为提高多轴越野车的行驶平顺性,建立了8×8越野车半车模型的六自由度动力学方程,求解对第一轴路面输入的传递函数.以提高行驶平顺性为目的确立目标函数,应用遗传算法对各轴间的悬架刚度和阻尼进行匹配优化,将优化前后的结果进行对比分析,优化后的悬架刚度和阻尼有效提高了多轴越野车辆的行驶平顺性.
In order to improve the ride comfort of a multi - axle off - road vehicle, a six-degrees of freedom dynamic model for an 8 × 8 off - road vehicle is built to solve the transfer functions of the road input of its first axle. The objective function is established to improve the ride comfort and the genetic algorithm is used for the matching optimization of stiffness and damping among each axle. The comparison of results before and after the improvement shows that the suspension with optimized parameters can effectively improve the ride comfort of the vehicle.
出处
《车辆与动力技术》
2014年第4期40-44,49,共6页
Vehicle & Power Technology
关键词
多轴
平顺性
刚度
阻尼
优化
Multi-axle
Ride comfort
Stiffness
Damping
Optimization
