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建立了包含车下设备的铁道车辆动力学模型,设计了车下设备隔振元件参数,并对隔振元件参数、设备质量及吊挂位置对车体振动及设备自身振动的影响进行了分析。结果表明,合理设立吊挂参数可有效减小车体弹性振动。根据本文的研究,吊挂在车体纵向中心位置附近的大质量设备采用弹性悬挂时能够有效抑制车体的弹性振动。轻质量设备(小于1000kg)对于车体弹性振动抑制效果很小;分布在车体两端的车下设备对车体一阶垂弯振动抑制效果很小。另外,对位于端部且质量不大的车下部件,可以采用刚性连接。
The dynamic model of the railway vehicle including the equipment under the vehicle is established, the parameters of the vibration isolation device under the vehicle are designed, and the influence of the vibration isolation device parameters, equipment quality and hanging position on the vibration of the vehicle body and the vibration of the equipment itself is analyzed. The results show that the reasonable establishment of suspension parameters can effectively reduce the body vibration. According to the research of this paper, the large-capacity equipment suspended near the longitudinal center of the car body can effectively restrain the elastic vibration of the car body when the elastic suspension is adopted. The light weight equipment (less than 1000kg) has little effect on the elastic vibration of the vehicle body; the undercarriage distributed on both ends of the vehicle body has little effect on the vibration damping of the first-order body of the vehicle body. In addition, a rigid connection can be used for lower-quality parts of the vehicle at the ends.