摘要
本文提出了机车转向架的三个等效刚度（即弯曲刚度Ｋ＿ｂ、剪切刚度Ｋ，及牵引刚度Ｋ＿ｔ）的概念，并分别对常规机车转向架及机车径向转向架导出了这三个刚度的表达式，建立了机车径向转向架的简化等效模型。经分析得出，常规转向架的这三个刚度有强烈的相关性，而机车径向转向架的三个刚度则有可能相互独立，设计得当时可实现曲线通过、横向稳定性及动轮驱动系统粘滑振动稳定性三方面性能的良好协调，使机车径向转向架的应用范围及其动力学性能均有可能大大优于常规的机车转向架。
ln this paper,three stiffness concepts(bending,shear and traction stiffness;K_b,K_s,K_t,)are proposed and their expressions are derived both from a conventional and a self-steering powering bogie as well. On the basis of these concepts a simplified equivalent model of a radial powering bogie is established. The resuIts show that on a conventional bogie withpower these stiffnesses are strongly dependent on each other,but on a self-steering poweringbogie each stiffness is possibly independent on others. There exists a reasonable design forthese three stiffnesses to obtain a better coordination among curve negotiation, lateral stability and driving system stability.This will make the dynamics of a self-steering powering bogie much better than a conventional one and can be used in more lines。
出处
《铁道学报》
EI
CSCD
北大核心
1995年第1期21-28,共8页
Journal of the China Railway Society
基金
铁道部科技发展项目
关键词
机车
转向架
牵引
动力学
locomotive
bogie
traction
dynamics
