磁浮轨道不平顺对悬浮系统影响的抑制方法

为了研究磁浮轨道不平顺对悬浮系统的影响，介绍了轨枕铺设、轨道梁距离这两个轨道周期性不平顺的主要来源，建立带轨道周期性不平顺的悬浮模块模型。在此基础上，从干扰输入和系统输出的角度探究轨道不平顺对悬浮系统的影响。以数值仿真的方式，分析系统在额定车速下，受到不同轨道波长激励时的悬浮间隙波动输出。结合唐山轨道不平顺功率谱，指出车辆运行时的敏感波长区域，从轨枕铺设和轨道梁架设距离两个方面提出改进意见。针对现有的磁浮轨道工况，从控制器设计角度研究调整控制参数对抑制轨道周期性不平顺干扰的影响。
In order to analyze the track irregularity, the source of the periodical irregularity was introduced, and the simplified model of track irregularity and a levitation module model were built. Based on these models, the impact of track irregularity on the suspension was discussed. The gap fluctuation of the system was analyzed when stimulated by the different length wavelength of the track periodical irregularity. Considering the track power spectrum density in the Tangshan maglev experimental line, the sensitive wave length was pointed and some advice for the improvement of the track building was given. As the fact that many low-speed maglev tracks have been built, the way of adjusting parameters of the controller to reduce the disturbance from track periodical irregularity was studied.