论文部分内容阅读
以具有二系横向主动控制悬挂装置的高速客车为例，建立了具有３１个自由度的整车数学模型。通过对系统主动悬挂简单数学模型最优控制的研究，给出了其控制规律，并用于高速客车的主动控制悬挂装置。通过对高速客车的运动稳定性、曲线通过性能、随机响应的动力学仿真分析表明，加装该二系横向主动控制装置不仅能提高高速客车的蛇行临界速度，而且能较大地改善高速客车的横向运行平稳性；高速客车曲线通过性能如脱轨系数、轮轨横向力均有降低，其曲线通过性能得到了改善。因此，主动控制悬挂技术的应用有助于改进高速客车动力学性能
Taking a high-speed passenger car with two-tiered transverse active control suspension as an example, a complete vehicle mathematical model with 31 degrees of freedom is established. Through the research on the optimal control of the simple math model of active suspension system, the control law is given, and it is also used in the active control suspension device of high speed passenger car. Through the dynamic stability analysis of the high-speed passenger car, curve passing performance and random response, it is shown that the installation of the second-line transverse active control device can not only improve the critical speed of the high speed passenger car, but also greatly improve the transverse speed of the high speed passenger car Running smoothness; Passenger vehicle curve passing performance such as derailment coefficient, wheel-rail lateral force are reduced, the curve through the performance has been improved. Therefore, the application of active control suspension technology helps to improve the performance of high-speed passenger car dynamics