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Optimization and validation of traction performance for an eight-axle heavy-haul locomotive during gradient starting [PDF]

open access: yesScientific Reports
To 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
doaj   +2 more sources

Numerical simulation study on the heat dissipation characteristics of an air-cooled radiator [PDF]

open access: yesE3S 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
doaj   +1 more source

Ground simulation research on the super large moment of inertia of the space transfer manipulator [PDF]

open access: yesMATEC 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
doaj   +1 more source

Study of Supercapacitors Built in the Start-Up System of the Main Diesel Locomotive

open access: yesEnergies, 2023
A successful guaranteed launch of a mainline diesel locomotive is one of the most important and urgent problems of the rolling stock operation. Improvement of the start-up system of the main diesel locomotive when using a supercapacitor allows multiple ...
B. Malozyomov   +7 more
semanticscholar   +1 more source

Determination of the Risk of Failures of Locomotive Diesel Engines in Maintenance

open access: yesEnergies, 2023
This article presents a mathematical model of the risk of failures, depending on the operating parameters, of locomotive diesel engines. The purpose of this study is to determine the risk of failures of locomotive diesel engines in maintenance.
Denys Baranovskyi   +4 more
semanticscholar   +1 more source

A Novel Denoise Method of Acoustic Signal from Train Bearings Based on Resampling Technique and Improved Crazy Climber Algorithm

open access: yesShock 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
doaj   +1 more source

Torsional locomotion [PDF]

open access: yesProceedings 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
openaire   +4 more sources

Research and Optimization of Hybrid On-Board Energy Storage System of an Electric Locomotive for Quarry Rail Transport

open access: yesEnergies, 2023
Operation modes of rolling stock at mining enterprises are considered and analyzed. The justification of the need to replace it with a modern specialized electric locomotive for quarry railway transport, equipped with an asynchronous traction electric ...
S. Goolak   +5 more
semanticscholar   +1 more source

A Locating Approach for Small-Sized Components of Railway Catenary Based on Improved YOLO With Asymmetrically Effective Decoupled Head

open access: yesIEEE 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
doaj   +1 more source

Tracking and Characterizing Spatiotemporal and Three-Dimensional Locomotive Behaviors of Individual Broilers in the Three-Point Gait-Scoring System

open access: yesAnimals, 2023
Simple Summary Objective gait scoring can provide critical insight into broiler chicken welfare, including physiological traits related to leg health status.
Guoming Li   +3 more
semanticscholar   +1 more source

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