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为了分析D35钳夹车转向架动力学性能,利用模板建模技术建立刚柔耦合整车模型.在3轴H形构架式转向架模型中,从轴箱悬挂和承载鞍摩擦作用角度,对多年来货车转向架的设计经验加以总结与验证,如1、3轴的直顶斜楔在垂向和横向上起到摩擦减振作用,而2轴承载鞍与轴箱之间金属-金属接触,在曲线通过时发生横向摩擦滑动以降低轮轨横向力和轴向力;在直线通过时接触摩擦产生迟滞阻尼作用以增强轮对纵横向定位刚度.D35空车回放仿真分析表明:“摆尾”现象是由辊子旁承摩擦激扰“打破”了末位转向架轮对临界阻尼状态所导致.
In order to analyze the dynamic performance of the D35 jaw car bogie, the rigid-flexible coupling vehicle model was established by using the template modeling technology.In the 3-axle H-frame bogie model, from the perspective of the axle box suspension and bearing saddle friction, The design experience of the truck bogie is summed up and verified. For example, the straight top wedges of the 1,3-axis play the role of friction and vibration damping in the vertical and horizontal directions, while the metal bearing of the 2-axle bearing saddle and the axle box are in metal- When the curve passes, lateral frictional sliding occurs to reduce the wheel-rail lateral force and axial force, and when the straight line passes, the contact friction produces hysteretic damping to enhance the longitudinal and transverse positioning rigidity of the wheelset. Simulation of D35 empty car playback shows that: “Phenomenon is caused by friction on the side of the roller ” Break "of the last bogie wheel to the critical damping state.