论文部分内容阅读
根据铁道车辆稳定性的经典研究,作者提出了对于轮对与转向架构架之间具有抗蛇行减振器或前后轮对之间具纵向或横向刚度的铁道车辆如何修改运动方程。车辆的临界速度由矩阵A(9,9)的本征值来确定。根据临界速度与抗蛇行减振器的典型值C_R及临界速度与纵向或横向刚度K_b或K_b′之间的关系。我们可以说,在等效锥度γ_e较高时这些系统的参数对临界速度有较大的影响,而对于等效锥度γ_e较低的情况来说,临界速度本来就已经很高了。根据本文给出的临界速度与C_R及K_b(或K_b′)之间的关系曲线,确定了K_b(或K_b′)的最佳C_b值。最后还提出横向刚度比纵向刚度在车辆稳定性方面更重要。
Based on a classic study of the stability of railroad vehicles, the authors propose how to modify the equation of motion for railway vehicles with anti-snake shock absorber or longitudinal or transverse stiffness between the front and rear wheelsets between the wheelsets and the bogie frame. The critical speed of a vehicle is determined by the eigenvalues of matrix A (9, 9). According to the critical speed and anti-snake shock absorber typical value C_R and the critical speed and longitudinal or transverse stiffness K_b or K_b ’relationship between. We can say that the parameters of these systems have a greater impact on the critical speed when the equivalent taper γ_e is higher, but the critical speed is already quite high for the case of the lower equivalent taper γ_e. According to the curves of critical velocity and C_R and K_b (or K_b ’) given in this paper, the best C_b value of K_b (or K_b’) is determined. Finally, it is also suggested that the transverse stiffness is more important than the longitudinal stiffness in terms of vehicle stability.