Results 11 to 20 of about 5,517 (250)
On the Use of Microwave Holography to Detect Surface Defects of Rails and Measure the Rail Profile. [PDF]
Sensors (Basel), 2019 The use of microwave holography for detecting rail surface defects is considered in this paper. A brief review of available sources on radar methods for detecting defects on metal surfaces and rails is given. An experimental setup consisting of a two-coordinate electromechanical scanner and a radar with stepped frequency signal in the range from 22.2 ...
Zhuravlev A +4 more
europepmc +5 more sources
Deep learning on rail profiles matching
CoRR, 2022 Matching the rail cross-section profiles measured on site with the designed profile is a must to evaluate the wear of the rail, which is very important for track maintenance and rail safety. So far, the measured rail profiles to be matched usually have four features, that is, large amount of data, diverse section shapes, hardware made errors, and human
Wang, Kunqi +5 more
openaire +2 more sources
Wheel-Rail Profile Condition Monitoring [PDF]
UKACC International Conference on CONTROL 2010, 2010 Increased railway patronage worldwide is putting pressure on rolling stock and infrastructure to operate at higher capacity and with improved punctuality. Condition monitoring is seen as a contributing factor in enabling this and is highlighted here in the context of rolling stock being procured with high capacity data buses, multiple sensors and ...
Ward, C.P., Dixon, R., Goodall, Roger M.
openaire +1 more source
A 3D Laser Profiling System for Rail Surface Defect Detection
Sensors, 2017 Rail surface defects such as the abrasion, scratch and peeling often cause damages to the train wheels and rail bearings. An efficient and accurate detection of rail defects is of vital importance for the safety of railway transportation. In the past few
Zhimin Xiong +3 more
doaj +1 more source
Design and optimisation of wheel–rail profiles for adhesion improvement [PDF]
Vehicle System Dynamics, 2016 This paper describes a study for the optimisation of the wheel profile in wheel-rail system to increase the overall level of adhesion available at the contact interface, in particular to investigate how the wheel and rail profile combination may be designed to ensure the improved delivery of tractive/braking forces even in poor contact conditions.
LIU, BINBIN, Mei, T. X., BRUNI, STEFANO
openaire +1 more source
Grinding Management of Rail Profile Based on Abnormal Hunting of High-speed Train
机车电传动, 2020 To study the influence of the polished depth of rail profile at the gauge angle on the low-frequency vibration of high-speed train, a group of rail profiles were obtained by interpolating between the standard CN60 profile and the measured rail profile ...
Jingwei CHEN +3 more
doaj
The Effect of Profiles on Wheel and Rail Damage [PDF]
International Journal of Vehicle Structures & Systems, 2009 This paper outlines the historical development of the wheel and rail profiles currently used on railway vehicles. It also presents the key damage mechanisms involved in wheel-rail contact and summarises the methods that have recently been developed by railway engineers to predict the level of wheel and rail damage from these mechanisms.
openaire +1 more source
Advanced Functional Materials, EarlyView.Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco +8 more
wiley +1 more source
Study on Dynamic Problem of Speed-increasing EMUs on Lanzhou-Xinjiang Passenger Dedicated Line
机车电传动, 2021 The Lanzhou-Xinjiang passenger dedicated Line is located in the northwest region of China with the natural environment of high temperature, severe cold and windy sand, which puts forward higher requirements for the safe and reliable operation of high ...
Guodong LI +3 more
doaj