Results 11 to 20 of about 988,622 (290)

The effect of controllable train-tail devices on the longitudinal impulse of the combined trains under initial braking

open access: yesRailway 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
doaj   +1 more source

Rolling Ribbons [PDF]

open access: yesPhysical Review Letters, 2010
We present the results of a combined experimental and theoretical investigation of rolling elastic ribbons. Particular attention is given to characterizing the steady shapes that arise in static and dynamic rolling configurations. In both cases, above a critical value of the forcing (either gravitational or centrifugal), the ribbon assumes a two-lobed,
Raux, P., Reis, P., Bush, J., Clanet, C.
openaire   +3 more sources

Unified Principal S–N Equation for Friction Stir Welding of 5083 and 6061 Aluminum Alloys

open access: yesChinese Journal of Mechanical Engineering, 2021
With the popularization of friction stir welding (FSW), 5083-H321 and 6061-T6 aluminum alloy materials are widely used during the FSW process. In this study, the fatigue life of friction stir welding with two materials, i.e., 5083-H321 and 6061-T6 ...
Xiangwei Li, Ji Fang, Xiaoli Guan
doaj   +1 more source

Residual stress field of HIPed silicon nitride rolling elements [PDF]

open access: yes, 2002
The residual stress field of HIPed Si3N4 rolling elements were studied. Two kinds of HIPed Si3N4 ball blanks self-finished at different nominal lapping loads ranging from 1.3 to 10.87 kgf/ball and four kinds of commercially finished 1/2 in (12.7 mm ...
Hadfield, M, Kang, J, Tobe, S
core   +1 more source

Roll On - Roll Off [PDF]

open access: yes, 2021
<p>During the final months of 2011 the New Zealand government revisited a 50 year old proposal to move the inter-island ferry terminal, currently located in Picton, to a site bordering on both Lake Grassmere and the Clifford Bay coastline. This thesis is based around the design of the new terminal facilities.The primary goal of this research is ...
openaire   +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

Optimization of damping effect for the air spring by the frequency dependent orifice

open access: yesMechanical Engineering Journal, 2017
This study proposes a newly developed structure for a frequency-dependent orifice for an air spring of a passenger train vehicle. This frequency-dependent orifice reduced both the rolling motion and the vertical vibration at high frequency.
Yuichiro TAKINO   +5 more
doaj   +1 more source

Roll, roll, roll me away [PDF]

open access: yesCanadian Medical Association Journal, 2013
When Shelley Stoddart applied for a nursing position with the mobile eye care clinic run by CNIB, there was one job requirement she didn’t understand: the need for an AZ license. So she called her father. “When he heard, he said: ‘You’re going to have to become a truck driver’.”
openaire   +1 more source

Stator ITSC Fault Diagnosis for EMU Induction Traction Motor Based on Goertzel Algorithm and Random Forest

open access: yesEnergies, 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
doaj   +1 more source

Surface damage resulting from rolling contact operating in magnetic field [PDF]

open access: yes, 2007
This paper describes the effects of magnetic field in rolling contact tests of steel by using a two-disc configuration and the investigation of mechanisms involved.
Iida, Y, Sato, K, Stolarski, T A
core   +1 more source

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