Results 31 to 40 of about 11,419 (301)

Verification of elastically supported beam model for growth mechanism analysis of rail corrugation

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Rail corrugation that causes the vibration and the noise is a phenomenon in which roughness patterns of approximately regular wavelengths are formed on the rail running surface by trains running.
Mitsuo ABOSHI, Hirofumi TANAKA
doaj   +1 more source

Generation mechanism and remedy method of rail corrugation at a sharp curved metro track with Vanguard fasteners

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2020
In Chinese metro lines, Vanguard fastener system is widely used as vibration damping fastener. However, the rails mounted with this fastener system are deeply affected by rail corrugation.
BW Wu, GX Chen, JZ Lv, Q Zhu, X Kang
doaj   +1 more source

Experimentally Based Numerical Simulation of the Influence of the Agricultural Subsurface Drainage Pipe Geometric Structure on Drainage Flow

open access: yesAgriculture, 2022
The geometric structure of corrugated plastic pipes affects performance in agricultural subsurface drainage systems. To explore the influence of pipe geometry on flow field characteristics and the characterization of water movements, we developed a three-
Zhe Wu   +4 more
doaj   +1 more source

Corrugated multi-supersheets [PDF]

open access: yesJournal of High Energy Physics, 2013
We explore the multi-superthreads and supersheets solutions of six-dimensional N=1 supergravity coupled to a tensor multiplet. The solutions carry D1-D5-P charges, but no Kaluza-Klein monopole. We lay down the formalism to construct multiple supersheets with arbitrary and independent profiles.
openaire   +3 more sources

Evolution of Low-Profile Ultra-Wideband Frequency Selective Surface with a Stable Response and Sharp Roll-Off at Lower Band for C, X and Ku Band Applications [PDF]

open access: yesRadioengineering, 2020
This paper focuses on two different design flows of how an ultra-wideband FSS can be achieved from a narrow band structure. By amalgamating a capacitive patch with a corrugated square slot structure, as the first approach while the second approach ...
A. N. Biswas   +3 more
doaj  

The Identification and Assessment of Rail Corrugation Based on Computer Vision

open access: yesApplied Sciences, 2019
The identification and assessment of rail corrugation are two of the essential tasks of daily railway inspection to guarantee the safety of train operation and promote the development of an efficient maintenance strategy.
Dehua Wei   +4 more
doaj   +1 more source

Formation Mechanism of Metro Rail Corrugation Based on Wheel–Rail Stick–Slip Behaviors

open access: yesApplied Sciences, 2021
Field investigation shows that most corrugations occur on the inner rail surface of curved tracks with a radius of less than 700 m. In order to explore the formation mechanism of metro corrugation, the relationship between wheel–rail stick–slip ...
Zhiqiang Wang, Zhenyu Lei
doaj   +1 more source

The development of rail-head acoustic roughness

open access: yes, 2009
A model of the development of rail-head acoustic roughness on tangent track has been formulated. The model consists of a two-dimensional time domain wheel-rail interaction force calculation, with the normal force used as the input to a two-dimensional ...
Croft, Briony Elizabeth
core   +2 more sources

THE CORRUGATED VOCAL CORD [PDF]

open access: yesAmerican Journal of Roentgenology, 1967
The corrugated vocal cord, a normal variant, is described. Possible causes are suggested and the differentiation from carcinoma is discussed.
openaire   +2 more sources

Reduction of Corrugation by Semi-Active Track [PDF]

open access: yes, 2004
This article discusses possibilities for application of semi-active actuators to reduce rail and wheel wear. A simple model of a vehicle/track interaction is presented. The model is extended with a model of semi-active actuators. The feedback control law
Preumont, A., Valasek, M., Vaculin, O.
core  

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