Study on Stability of the High-Speed Bogie Based on Three Typical Wheel Treads
Study on Stability of the High-Speed Bogie Based on Three Typical Wheel Treads
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发表时间：
2010
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通讯作者：
Zhao Wen-zhong
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作者：
Zhao Wen-zhong
针对高速铁路运行速度为350 km·h1的CRH3多台机组，采用基于高速轮轨匹配计算的线性稳定性分析方法，绘制了高速轮轨交互空间（W/R）稳定安全裕度的三维图形。线性稳定性分析表明，等效锥度越大，转向架猎动固有频率越高，因此必须不断提高抗猎动阻尼器的串联刚度。非线性稳定性仿真分析表明，为了满足减猎振动、限制猎振幅度和权衡准静态曲线协调的动态性能等要求，需要形成更宽频带的吸能特性，以满足其动液压刚度的非线性。通过仿真计算得到的电机转向架的横向加速度与实测值基本一致。从踏面弯道磨损的角度出发，从理论上确定了XP55、S1002CN和LMA三种典型踏面的最大商业速度。
For CRH3 multiple units(MU) running on high-speed railway at 350 km·h1,the 3D figure of stability safety margin on high-speed wheel/rail(W/R) interaction space was drawn by the linear stability analysis methodology based on the high-speed W/R matching calculation.The linear stability analyses demonstrate that the more equivalent conicity,the higher inherent frequency of bogie hunting vibration,thus the stiffness in series must be increased continually for anti-hunting dampers.The simulation analyses of non-linear stability show that wider frequency-band absorbing energy features of the anti-hunting dampers are necessary to be formed with the non-linearity of their dynamical hydraulic stiffness so that the requirements can be satisfied,which are attenuating the hunting vibration,restricting the amplitude of hunting vibration and trading-off the dynamic performance of quasi-static curve negotiation,etc..The lateral accelerations of the motor bogies calculated from the simulation are consistent with the actual measured ones.The maximum commercial velocities of the three typical treads(XP55,S1002CN and LMA) are determined theoretically from the aspect of tread wear in curve negotiation.