Results 271 to 280 of about 1,600,843 (353)

Dynamic modelling of traction motor bearings in locomotive-track spatially coupled dynamics system

Vehicle System Dynamics, 2021
For railway locomotive, its motor bearing is one of the key components, which is likely to be damaged due to the intensified vibration conditions caused by the wheel-rail interaction and gear mesh.
Yuqing Liu, Zaigang Chen, Kaiyun Wang, W. Zhai   +3 more
semanticscholar   +1 more source

Modelling the Dynamic Voltage Distribution in Electric Traction Motor Windings

International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2022
In this paper, a model for calculating the dynamic voltage distribution in electric traction motor windings under fast switching inverter feed is proposed. An Equivalent Circuit Model (ECM) approach is selected and outlined in detail.
Marina Keller, M. Maier, T. Petri, N. Parspour   +3 more
semanticscholar   +1 more source

Comparative study of stator current-based and vibration-based methods for railway traction motor bearing cage fault diagnosis at high-speed condition

Structural Health Monitoring, 2022
Traction motor’s rolling element bearings are one of the most critical components for the structural health monitoring of high-speed train vehicles. Most structural health monitoring techniques for railway rolling element bearings are using vibration ...
Qi Sun, Chunjun Chen, Xinchang Liu
semanticscholar   +1 more source

The Application of Traction Motors

Transactions of the American Institute of Electrical Engineers, 1940
The application of traction motors is based fundamentally on speed-time curve calculations. This method has been used for many years and is familiar to electrical engineers engaged primarily in transportation activities. Many other engineers infrequently encounter problems of traction-motor application but are not conversant with the effect which ...
F. E. Wynne, G. M. Woods
openaire   +1 more source

Optimisation of Hairpin Winding in Electric Traction Motor Applications

International Electric Machines and Drives Conference, 2021
This paper investigates the influence of number of layers and conductor size of hairpin windings of electric motors for electric vehicle applications.
S. Xue, M. Michon, Mircea Popescu, G. Volpe   +3 more
semanticscholar   +1 more source

Dynamic braking with traction motors

Electrical Engineering, 1945
Retardation with traction motors, either independently or as an adjunct to mechanical braking, has been utilized in various forms on practically all types of electric vehicles from battery trucks to main-line locomotives. In some cases, it is used only to maintain uniform speeds on long grades and in others to make regular service stops.
L. G. Riley, G. M. Woods
openaire   +1 more source

Faster Multiscale Dictionary Learning Method With Adaptive Parameter Estimation for Fault Diagnosis of Traction Motor Bearings

IEEE Transactions on Instrumentation and Measurement, 2021
Traction motor bearings are crucial components to guarantee stable operation. Thus, it is significant to monitor the bearing condition. Dictionary learning is a powerful method to extract the characteristic condition.
Zilong Zhang, Zhibin Zhao, Xiaolong Li, Xingwu Zhang, Shibin Wang, Ruqiang Yan, Xuefeng Chen   +6 more
semanticscholar   +1 more source

Numerical prediction and measurement of pressure drop and heat transfer in a water‐cooled hollow‐shaft rotor for a traction motor application

IET electric power applications, 2021
Yaohui Gai, School of Mechano‐Electronic Engineering, Xidian University, Xi’an 710071, China Email: yhgai@xidian.edu.cn Abstract This article addresses the rotating effect on the pressure loss and heat transfer coefficient (HTC) of a hollow‐shaft rotor ...
Y. Gai, Chenwei Ma, Yongming Xu, Y. C. Chong   +3 more
semanticscholar   +1 more source

Motorized Robotic Closed Cervical Traction

Spine, 2023
Study Design. Biomechanical study Objective. To demonstrate that robotic cervical traction can apply closed cervical traction as effectively as manual weight-and-pulley traction in extension spring and cadaveric models. Summary of Background Data.
Brandon A. Sherrod, Trevor Schwehr, Daniel Waldram, Andrew Adams, Sterling Averett, Jeewon Ha, Simon Kahle, Derek Mitchell, Seth Polevoi, Andrew T. Dailey, Andrew S. Merryweather, Marcus D. Mazur   +11 more
openaire   +2 more sources

Online Deep Learning for High-Speed Train Traction Motor Temperature Prediction

IEEE Transactions on Transportation Electrification
As the core component of the traction drive system of high-speed trains, the working condition of the traction motor is directly related to the operational safety of the train.
Zhiqiang Yang, Honghui Dong, Jie Man, L. Jia, Yong Qin, Jun Bi   +5 more
semanticscholar   +1 more source