Optimization and validation of traction performance for an eight-axle heavy-haul locomotive during gradient starting [PDF]
Scientific ReportsTo validate the traction performance of two newly developed eight-axle heavy-haul electric locomotives prior to their formal commissioning, a restart test was carried out. The test required each locomotive to individually initiate movement of a 4,700-ton
Yongfeng Liu +3 more
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Real-Time Evaluation of Ground Insulation Degradation and Fault Warning Method Under Multiple Operating Conditions for Train Traction Drive System [PDF]
SensorsAiming at the problem that the main circuit grounding fault in the traction drive system of locomotives and high-speed trains can only be diagnosed under a single operating condition and cannot be warned about early, a mechanism and data-driven real-time
Zhenglin Cheng +5 more
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Multiobjective Optimization and Weight Selection Method for Heavy Haul Trains Trajectory
IEEE Access, 2022 Energy-saving, punctuality and smoothness are difficult to achieve in the operation of heavy haul train. This paper proposes a multi-objective method for speed curve optimization.
Wang Li, Senhao Jiang, Miaoxin Jin
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Research on Air Supply Volume and Temperature Control of Subway Trains Based on Passenger Capacity
Atmosphere, 2023 There is currently no way for subway air-conditioning systems to adjust to changes in passenger capacity in terms of air-supply volume and air-supply temperature.
Zhiyuan Liu +6 more
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Bionic shape design of electric locomotive and aerodynamic drag reduction [PDF]
Archives of Transport, 2018 Bionics has been widely used in many fields. Previous studies on the application of bionics in locomotives and vehicles mainly focused on shape optimisation of high-speed trains, but the research on bionic shape design in the electric locomotive field is
Zhenfeng WU +3 more
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Energies, 2021 Wheel flat can cause a large impact between the wheel and rail and excites a forced vibration in the locomotive and track structure systems. The working conditions and fatigue life of the motor bearings are significantly affected by the intensified wheel–
Bingbin Guo +4 more
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Intelligent Scheduling Strategy of Electric Locomotive Robots for Underground Mining
IEEE Access, 2021 In order to improve the working efficiency of underground electric locomotive robots in complex geological coal mines and realize the automation of underground scheduling system, the scheduling model of electric locomotive robots is established based on ...
Xuanxuan Yan +4 more
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Feedforward-loop phase-locked loop based estimation scheme for sensorless IPMSM drive system
e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023 The existence of mechanical speed sensors brings challenges of system reliability. Therefore, drives without speed and position sensors attract much popularity in interior permanent-magnet synchronous motor (IPMSM) drive system. This paper provides a new
Wang Li, Jixiong Jiang, Junwen Mu
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Вестник Научно-исследовательского института железнодорожного транспорта, 2021 Mass of a passenger train and, accordingly, number of cars in its composition is selected based on the amount of passenger traffic on the section, determined by the seasonal demand for transportation in each direction.
I. N. Nikonchuk
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Fatigue research of metro car body based on operational loads [PDF]
Railway SciencesPurpose – The principle of infinite life design currently directs fatigue resistance strategies for metro car bodies. However, this principle might not fully account for the dynamic influence of operational loads and the inevitable presence of defects ...
Xihong Jin, Feng Guo
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