Results 11 to 20 of about 257 (180)
Influence of speed of rail flaw detection on the reliability of its results [PDF]
E3S Web of Conferences, 2023 The system of non-destructive testing of rails during their operation on the railroad network of the Russian Federation is based on the use of removable and mobile means of flaw detection.
Davydkin A.V. +2 more
doaj +1 more source
Elevator dynamic monitoring and early warning system based on machine learning algorithm
IET Networks, EarlyView., 2022 In order to monitor and warn the elevator dynamics, in this work, the machine learning algorithm is introduced, and the particle swarm algorithm is used to perfect the model. The model is optimised, and the experimental comparison shows that the optimisation of the model parameters can further improve the accuracy of the elevator load prediction. Then,
Shuai Zhang, Qiangguo Yin, Jinlong Wang
wiley +1 more source
Case Studies in Thermal Engineering, 2021 With rapid increase in operation and development of high-speed trains, inspection of railroad surface flaws has become an important aspect for safe and reliable operation of rail network.
Bilawal Ramzan +5 more
doaj +1 more source
Mìkrosistemi, Elektronìka ta Akustika, 2022 In this work, the possibility of application the device with a non-standard (side) piezoelectric sensor installation for rail condition monitoring is considered.
Illia Kostiantynovych Shapovalov +3 more
doaj +1 more source
An Algorithm for Correcting Levels of Useful Signals on Interpretation of Eddy-Current Defectograms
Моделирование и анализ информационных систем, 2021 To ensure traffic safety of railway transport, non-destructive tests of rails are regularly carried out by using various approaches and methods, including eddy-current flaw detection methods.
Egor V. Kuzmin +4 more
doaj +1 more source
Analysis of 70° Ghost Echo of Bolt Hole in High-speed Rail Flaw Detection Ultrasonic Examination
机车电传动, 2021 In the detection process of high-speed rail flaw by ultrasonic flaw, there are some abnormal echoes in rail head near the bolt holes in B scan sometimes, however, they are not echoes from defects but ghost echoes actually.
Pin WANG +3 more
doaj
Severity Estimation of Defects on Interpretation of Eddy-Current Defectograms
Моделирование и анализ информационных систем, 2021 To ensure traffic safety of railway transport, non-destructive tests of rails are regularly carried out by using various approaches and methods, including eddy-current flaw detection methods.
Egor V. Kuzmin +4 more
doaj +1 more source
Intelligent Rail Flaw Detection System Based on Deep Learning and Support Vector Machine
机车电传动, 2021 Currently, detection systems of rail flaw detection vehicles in China have automatic flaw recognition function, which has problems with low accuracy, high false alarm rate and occurrence of underreport because of the adoption of simple logic judgment ...
Jiangping LUO +3 more
doaj
Automatic Segment Compensation Alignment Control Algorithm Based on Rail Head Wear
机车电传动, 2021 RSU (roller search unit) automatic alignment system which is based on laser profile measurement theory ensures that the RSU is always above the center of the rail, so that the ultrasonic can scan the rail normally and ensuring normal flaw detection.
Wenxing WANG +4 more
doaj
Metals, 2023 To solve the instability of liquid steel in the continuous casting process and the inconsistent flaw detection of heavy rail steel, steel flow control was studied numerically in a tundish with a porous baffle wall by using the fluid dynamics software ...
Shuo Zhao +6 more
doaj +1 more source