基于改进SSA的重载列车循环空气制动运行优化

打开文本图片集

中图分类号：U239.4 文献标志码：A

Abstract： To improve the running performance of heavy-haul trains，a running optimization method for heavyhaul trains based on improved sparrow search algorithm （SSA） was proposed，considering the use of circulating air braking for long downhill descent.The force analysis of each train section was carried out， the longitudinal dynamic model of the train was constructed，and the multi-objective optimization model ofthe train operation curve was established;the Circle chaotic map and line requirements were used to generatethe initial population， and the adaptive inertial weight factor and the SSA improved by Lévy flight strategy were used to optimize the maneuvering strategy of the train in the long downhillarea.The simulation results based on the actual data of the HXD1 heavy-haul train on the Daqin Line show that the improved SSA has a significant improvement ffect on the key indicators of the train in the optimization strategy，such as safety，energy saving and punctuality.This study can provide some reference for the theoryof circulating air braking operation of long downhillheavy-haul trains.

Key words： heavy-haul train; growing downhill; air brake; longitudinal impulse; improved SSA

Citation format： FUY T， ZHANG W W， YANG H. Optimization of circulating air braking operation of heavyhaul train based on improved SSA[J]. Journal of East China Jiaotong University，2025，42（5）： 71-82.

重载货运作为铁路运输的核心支柱，以其运输量大、效率高等优势，在我国经济建设中扮演着不可或缺的关键角色，是推动国家发展进程的重要驱动力[-2]。（剩余15527字）