K. Y. Wang and P. F. Liu, “Characteristic of Dynamic Interaction between Wheel and Rail Due to the Hunting Motion on Heavy-Haul Railway,” Engineering Mechanics, Vol. 28, No. 1, 2012, pp. 235-239.

has been cited by the following article:

• TITLE: Lateral Stability Analysis of Heavy-Haul Vehicle on Curved Track Based on Wheel/Rail Coupled Dynamics

  AUTHORS: Kaiyun Wang, Pengfei Liu

  KEYWORDS: Hunting; Stability; Curved Track; Heavy-Haul Railway; Coupled Dynamics

  JOURNAL NAME: Journal of Transportation Technologies, Vol.2 No.2, April 23, 2012

  ABSTRACT: Being viewed from the standpoint of whole system, the hunting stability of a heavy-haul railway vehicle on a curved track is investigated in this paper. First, a model to simulate dynamic performance of the heavy-haul vehicle on the elastic track is developed. Secondly, the reason of the hunting motion is analyzed, and a bifurcation diagram for the vehicle on the curved track is put forward to simulate the nonlinear critical speed. Results show that the hunting motion of the heavy-haul vehicle will appear due to the larger conicity, the initial lateral shift and the wheelset angle of attack. With the hunting motion appearing, the lateral shift and force of the wheelset are changed sharply and periodically with a wave of circa 3.6 m. There is obvious difference in the bifurcation diagram between on a curved track and on a tangent track. Relative to the centerline of the track, each vehicle body on the curved track has two stable cycles. As for the curved track with a radius of 600 m and a superelevation of 55 mm, the nonlinear critical speed of the heavy-haul vehicle is 76.4 km/h.