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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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Numerical simulation study on the heat dissipation characteristics of an air-cooled radiator [PDF]
E3S Web of Conferences, 2023 This article conducts numerical simulation calculations on the heat dissipation characteristics of an air-cooled radiator. The results show that under natural heat dissipation conditions, the maximum temperature of air-cooled radiators with flat heat ...
Yan Kai, Li Feng, Ren Jing
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Ground simulation research on the super large moment of inertia of the space transfer manipulator [PDF]
MATEC Web of Conferences, 2020 During the construction of the space station, the cabin is driven by the transposition manipulator in space. Because of the large mass and volume of the cabin, which is not less than 22 tons, there will be emerge a large moment of inertia in the ...
Zhang Wei +4 more
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Shock and Vibration, 2022 The wayside acoustic defective bearing detector system (TADS) is located on both sides of the railway, so that the acoustic signals recorded by the microphone not only include the sound from the train bearings but also include it from the other ...
Yali Sun +5 more
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IEEE Access, 2023 In the routine inspection process of railway catenary systems, the primary task is to find out the locations of various components accurately. The complex composition of the components in the catenary system and their large dimensional differences make ...
Shuai Xu +7 more
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Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014 One edge of an elastic rod is inserted into a friction-less and fitting socket head, whereas the other edge is subjected to a torque, generating a uniform twisting moment. It is theoretically shown and experimentally proved that, although perfectly smooth, the constraint realizes an expulsive axial force on the elastic rod, which amount is independent ...
Bigoni, Davide +3 more
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Damage and Fatigue Life Evaluation for Laser Cladding Remanufactured Wheel
Advances in Materials Science and Engineering, 2022 Owing to high speeds and heavy loads, the wheels of trains and locomotives undergo gradual but significant damage. Conventionally, these damaged wheels are repaired using the rotatory repair method; however, this approach results in large amounts of ...
Liang Hua, Run-dong Zhou
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Shape retrieval by using multi-scale angle-based representation and dynamic label propagation
IET Cyber-systems and Robotics, 2020 To improve the robustness and discrimination power of the triangle-area representation, a novel shape matching method based on multi-scale angle representation is proposed in this study.
Yanxia Yu +6 more
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Railway Engineering Science, 2023 The 20,000-ton combined train running has greatly promoted China’s heavy-haul railway transportation capability. The application of controllable train-tail devices could improve the braking wave of the train and braking synchronism, and alleviate ...
Yuan Zhang +4 more
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Energies, 2023 The stator winding insulation system is the most critical and weakest part of the EMU’s (electric multiple unit’s) traction motor. The effective diagnosis for stator ITSC (inter-turn short-circuit) faults can prevent a fault from expanding into phase-to ...
Jie Ma +7 more
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