Results 1 to 10 of about 104 (98)

Integrated Intelligent System for Rail Flaw Detection Vehicle

open access: yes机车电传动, 2021
Ultrasonic testing is widely used to detect rail internal fatigue damage in large-scale rail flaw detection vehicles. However, the existing domestic ultrasonic system architecture platform has the phenomenon of data congestion and computer crash when it ...
Xiangyang ZHANG, Jiangping LUO
doaj   +1 more source

DGTC-80 Subway Rail Flaw Detection Vehicle

open access: yes机车电传动, 2017
DGTC-80 subway rail flaw detection vehicle was designed to complete subway rail internal flaw detection well and reduce emission pollution to environment around.
ZHANG Longping, YANG Fei
doaj   +1 more source

GTC-80 Plateau Rail Flaw Detection Vehicle

open access: yes机车电传动, 2015
To satisfy the requirement of 5 100 m altitude height Qingzang railway rail detection, GTC-80 plateau rail flaw detection vehicle was developed. Pertinence measures was adopted for the bad climatic conditions of high altitude, low atmospheric pressure ...
JIA Jinglan   +4 more
doaj   +1 more source

Analysis and Flaw Recognition Application of 70o Probe Echoes for Rail Flaw Detection Vehicles

open access: yesKongzhi Yu Xinxi Jishu
This paper delves into the impact of abnormal echoes at the rail head on flaw recognition resulting from the central 70° probes on rail flaw detection (RFD) vehicles.
XIA Lang   +3 more
doaj   +2 more sources

Research of Dual-power Under-suspension Type Rail Flaw Detection Vehicle

open access: yes机车电传动, 2018
In order to solve the problems of commissioned rail flaw detection vehicles such as poor curve alignment, and improve working environment and optimize dynamic performance of vehicle, a new type rail flaw detection vehicle proposal was put forward.
REN Taolong   +3 more
doaj   +1 more source

Research on Rail Flaw Echo Accurate Location Method Based on Interface Wave Tracking Technology

open access: yesKongzhi Yu Xinxi Jishu, 2023
In the calculation of rail flaw echo location, the rail flaw location is related to the ultrasonic propagation time in rail. The more accurate the extracted propagation time, the more accurate the rail flaw location calculation.
XIA Lang   +3 more
doaj   +3 more sources

Rail Magnetic Flux Leakage Detection and Data Analysis Based on Double-Track Flaw Detection Vehicle

open access: yesProcesses, 2023
The rapid development of the railway industry has brought convenience to people’s lives. However, with the high speed, high frequency and heavy load characteristics of rail use, the safety of rail is seriously threatened. In this paper, a magnetic flux leakage testing (MFL) detection technology of rail based on a double-track flaw detection vehicle is ...
Yi Wang   +6 more
openaire   +1 more source

Analysis of 70° Ghost Echo of Bolt Hole in High-speed Rail Flaw Detection Ultrasonic Examination

open access: yes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  

Automatic Segment Compensation Alignment Control Algorithm Based on Rail Head Wear

open access: yes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  

A Method of Trackside Kilometer Post Identification Combined with YOLOv3 Model

open access: yesKongzhi Yu Xinxi Jishu, 2020
In view of poor anti-interference ability and weak generalization of the present trackside identification method, it is unable to adapt to complex background fluctuation along railway.
QIU Xinhua   +3 more
doaj  

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