Effect of Anti-slip Control Strategy on Locomotive Wheel Tread Damage

doi:10.3901/JME.2023.22.369

Abstract

Abstract: The heavy-haul locomotives are widely equipped with anti-slip control modules with an aim to preventing wheel slipping under poor wheel/rail adhesion conditions. An improved PID-based anti-slip controller with optimal control threshold is proposed in this study, in which the disturbance observation is employed to judge the wheel/rail friction conditions. A three-dimensional heavy-haul train-track interactional model is established based on the vehicle-rail coupled dynamics theory. The wheel-rail contact behaviour and wheel tread fatigue damage with respect to the proposed anti-slip controller and re-adhesion anti-slip controller are compared carefully with the changing wheel-rail adhesion conditions and braking loadings. The results show that the anti-slip control strategy is of great importance to wheel/rail contact behaviour and wheel surface damage. The anti-slip controller will be triggered once the powered wheelset slips under the low-adhesion conditions. The wheel-rail adhesion utilization of the PID-based anti-slip controller with optimal control threshold is higher than that of the re-adhesion anti-slip controller, whereas the wheel surface damage will be more serious with utilization of the improved anti-slip controller.

Key words: heavy-haul locomotive, disturbance observer, pid-based anti-slip controller with optimal control threshold, vehicle-track coupled dynamics, wheel tread damage

CLC Number:

U270

GUO Xinru, YANG Yunfan, LING Liang, CHEN Zhe, WANG Kaiyun, ZHAI Wanming. Effect of Anti-slip Control Strategy on Locomotive Wheel Tread Damage[J]. Journal of Mechanical Engineering, 2023, 59(22): 369-379.

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