铰接式胶轮车转向系统的优化与验证

摘要

Aiming at the pressure pendulum in the process of steering for a full hydraulic steering system of an articulated rubber-tired vehicle,an optimization design of articulated steering mechanism is carried out based on particle swarm optimization,to deduce the maximum pressure of the steering cylinder as well as the max stroke difference between the left and right steering cylinders.The simulation result before and after optimization is compared based on the mechanical-hydraulic co-simulation model of the full hydraulic steering system for the articulated rubber-tired vehicle established by AMESim and ADAMS.Simulation result shows that for the optimized steering system the maximum pressure is reduced by 18.68％,the amplitude of the vibration is reduced by 19.41％.The optimization effect is obvious,which can be used as a reference for solving the problem of pressure pendulum for a full hydraulic steering system of an articulated rubber-tired vehicle.%针对铰接式胶轮车全液转向系统在转向过程中存在的压力振摆问题,以转向油缸最大压力最小和左右转向油缸最大行程差最小为优化目标,油缸铰接点位置为设计变量,利用粒子群算法,对铰接转向机构进行优化.在利用AMESim和ADAMS建立的铰接式胶轮车转向系统机液联合仿真模型的基础上,对优化前后结果进行对比仿真.仿真结果表明,优化后转向系统最大压力减少了18.86％,振摆幅度减少了19.41％,优化效果明显.为铰接式胶轮车全液转向系统压力振摆问题的解决提供参考.