不同截止频率下轨道不平顺对车辆垂向振动的影响

摘要

为研究地铁车辆在不同波长不平顺轨道上的乘坐舒适性,通过模拟轨道不平顺的时域样本,分析了不同截止频率下轨道不平顺样本对车辆垂向振动的影响,得出了轨道不平顺频率或波长对地铁车辆运行舒适性的影响及规律.结果表明,从抑制车体垂向振动的角度出发,应严格控制10 m～30 m波长的轨道不平顺.%In order to research on the ride comfort of metro vehicles on irregular track with different wave lengths, through simulation of the time domain sample of track irregularity, the effect of track irregularity sample with different cut-off frequencies on vertical vibration of vehicles is analyzed, the effect and regular pattern of the track irregularity frequency or wave length on the ride comfort of metro vehicles are obtained. The result shows that, from the angle of suppressing vertical vibration of carbodies, the track irregularity with the wave length of 10 m～30 m should be strictly controlled.