模拟工程车辆换挡瞬态的动力学仿真模型

A dynamic simulation model to simulate shifting transients of off-Highway vehicles

以美国CATpillar公司631型轮式铲运机为例,介绍一种经验证的工程车辆的动力学建模方法。同时特别分析了该机带有5个行星排的动力换档变速箱在齿轮换挡过程中的动力学问题并提出了建模方法。对于工程机械计算机仿真模型试验、系统设计参数优化、传动系统的零件寿命的评估尤其是车辆换挡平顺性的研究具有一定的实用意义。

This paper describes one method for modeling a power train-vehicle system, giving special consideration and one method for modeling to the dynamics of a transmission unit having five planetary gear sets in gear shifts . All is directed toward computer Simulation model testing optimizing system design parameters and evaluating power train component capability and especially vehicle shift-feel.