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以配装SW—200型转向架的动力学试验车为研究对象,对二系横向阻尼采用天棚半主动悬挂和开关半主动悬挂2种控制模式下的车辆动力学性能进行仿真计算分析。结果表明:半主动悬挂控制模式下的车辆蛇行失稳临界速度比采用被动悬挂控制模式时虽有所下降,但仍能满足运用要求。与被动悬挂控制模式相比,在直线上运行时,天棚半主动悬挂和开关半主动悬挂控制模式下的车体横向平稳性指标分别改善13%～18%和8%～16%,而且车辆运行速度越高,半主动悬挂控制模式对车体振动的控制效果越好;在曲线上运行时,半主动悬挂模式对车体横向振动仍有良好的控制作用;与开关半主动模式相比,系统时滞对天棚半主动悬挂模式控制车体振动的效果影响较大。
The dynamic test vehicle equipped with SW-200 bogie is taken as the research object to simulate and calculate the vehicle dynamic performance under the two kinds of control modes of semi-active suspension and semi-active suspension in the second-class transverse damping. The results show that the critical speed of the vehicle in the semi-active suspension control mode is lower than that of the passive suspension control mode, but it still meets the operational requirements. Compared with the passive suspension control mode, the lateral stability of the vehicle body in the semi-active suspension and semi-active switch control modes of the canopy were improved by 13% ~ 18% and 8% ~ 16% respectively in the straight line operation, and the vehicle operation The higher the speed, the better the control effect of semi-active suspension control mode on vehicle body vibration; the semi-active suspension mode has a good control over the vehicle body lateral vibration when operating on the curve; compared with the semi-active switch mode, The effect of delay on the vibration effect of the car body in semi-active suspension mode has a great effect.