Results 21 to 30 of about 131,627 (329)
Analysis of Acoustic Flow Field Characteristics of Key Components of High-Speed Train Bogies
Applied Sciences, 2023 In this paper, we aim to address the challenge of airflow interference during fault detection in high-speed train bogies by introducing a flow field and investigating the characteristics of the sound field distribution of critical components under its ...
Xing Zhao +3 more
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Energies, 2023 At present, China’s high-speed rail is in a period of rapid development. Most of the refrigerants used in Chinese motor train units at this stage are still R134a and R407c, which have an impact on the environment.
Hongjiang Cui +3 more
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The determination of the asynchronous traction motor characteristics of locomotive [PDF]
, 2017 The article deals with the problem of the locomotive asynchronous traction motor control with the AC diesel-electric transmission. The limitations of the torque of the traction motor when powered by the inverter are determined.
Kochin, Alexander Evgenievich +5 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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Optimal Design of Tuned Mass-Damper-Inerter for Structure with Uncertain-but-Bounded Parameter
Buildings, 2022 In this study we focus on the H∞ optimization of a tuned mass damper inerter (TMDI), which is implemented on an harmonically forced structure of a single degree of freedom in the presence of stiffness uncertainty. Posed as a min-max optimization problem,
Shaoyi Zhou +5 more
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VIRTUAL ROBOT LOCOMOTION ON VARIABLE TERRAIN WITH ADVERSARIAL REINFORCEMENT LEARNING [PDF]
, 2020 Reinforcement Learning (RL) is a machine learning technique where an agent learns to perform a complex action by going through a repeated process of trial and error to maximize a well-defined reward function.
Nguyen, Phong
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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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Study on Optimization of Copper to Aluminum for Locomotive Finned Tube Radiator
Energies, 2023 The influence of the improvement of the finned tube radiator unit structure on the fluid flow and heat transfer effect of the locomotive was studied. A saw-toothed fin structure with aluminum instead of copper was proposed to keep the position and size ...
Ying Guan, Hongjiang Cui, Jiyou Fei
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Aerodynamic Characteristics of Intercity High-Speed Trains Meeting in Tunnels
Chengshi guidao jiaotong yanjiu[Objective] The aerodynamic loads and instantaneous pressure changes generated when intercity high-speed trains meet in tunnels seriously affect the train operation safety and the passengers′ aerodynamic comfort.
ZHANG Baozhen +6 more
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, 2004 By far the most characteristic traits of nematodes are their extremely narrow streamlined body and undulatory style of locomotion, useful in their common burrowing habit. These traits have enabled them to be successful in an amazingly wide range of free-living and parasitic environments that is without parallel in other meiofauna.
Burr, A.H. Jay, Robinson, Forest A.
openaire +2 more sources