基于ADAMS/View的刚柔耦合大客车悬架优化分析

Optimization analysis for bus suspension with rigid-flexible coupling based on ADAMS/View

基于ADAMS软件中建立柔性体的方法,建立了某大客车悬架刚柔耦合运动学模型并对其进行仿真。针对在仿真过程中出现的在转弯工况下车身侧倾角过大的问题,利用ADAMS/Insight选取合适的横向稳定杆铰接点坐标值以及截面尺寸作为优化变量,以车身侧倾角均值最小作为优化目标,对悬架模型进行优化分析,以期使其车身侧倾角均值达到同类上市车型的水平,改善行驶稳定性。仿真结果验证了优化方案的可行性,使车身侧倾角均值达到了预期的控制目标,为今后的大客车悬架设计提供了参考方法。

Kinematic model of bus suspension with rigid-flexible coupling method was established and simulated in terms of the flexible body modeling method in ADAMS.Optimization analysis of suspension model was conducted with suitable installing coordinates of stabilizer bars and their cross sectional dimensions chosen as optimization variables in ADAMS/Insight to solve the problem of excessive auto body inclination angle under the turning working condition during simulation with the objective of minimum average inclination angle,which could reach the level of buses in market to improve the driving stability.Simulation results indicate that this optimization proposal is feasible,which would serve as a reference in the bus suspension design.