Results 1 to 10 of about 257 (180)

Rail Flaw Detection via Kolmogorov Entropy of Chaotic Oscillator Based on Ultrasonic Guided Waves [PDF]

Sensors
Ultrasonic guided wave (UGW) inspection is an emerging non-destructive testing(NDT) technique for rail flaw detection, where weak UGW signals under strong noise backgrounds are difficult to detect.
Ziyan Zeng, Jing Wu, Mingfang Zheng, Hongwei Ma   +3 more
doaj   +4 more sources

Research on Forward Problem of Rail Detection Based on Magnetoacoustic Coupling [PDF]

Sensors, 2022
According to the characteristics of rail defects, a rail microcrack detection method based on magnetoacoustic coupling effect is proposed in this paper. Firstly, the basic principle of a rail microcrack detection method based on magnetoacoustic coupling ...
Xin Huang, Aijuan Li, Zhen Huang, Yi Sun, Yumin Song, Ning Xu   +5 more
doaj   +2 more sources

Study and Optimal Design of the Integrated 37° Unidirectional SV-EMAT for Rapid Rail Flaw Detection [PDF]

Sensors
The problem of poor coupling and wheel breakage is a critical issue in the rapid inspection of rails using contact piezoelectric ultrasonic technology for trolleys and vehicles.
Wei Yuan
doaj   +2 more sources

Integrated Intelligent System for Rail Flaw Detection Vehicle

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

GTC-80 Rail Flaw Detection Car

机车电传动, 2013
Main technical parameters and vehicle distribution of GTC-80 rail flaw detection car were introduced, as well as the car body,bogie, brake system, flaw detection system and circulation detection system.
ZHANG Xiang-yang, ZHANG Gao-feng
doaj   +1 more source

DGTC-80 Subway Rail Flaw Detection Vehicle

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

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, LI Ruixia, ZHAO Li, ZHANG Xiangyang, LI Hongliang   +4 more
doaj   +1 more source

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

Kongzhi 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, WANG Pin, CAO Jingwei, LI Hongliang   +3 more
doaj   +2 more sources

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

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, JIA Jinglan, ZHAO Li, ZHANG Xiangyang   +3 more
doaj   +1 more source

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

Kongzhi 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, CAO Jingwei, WANG Pin, LI Hongliang   +3 more
doaj   +3 more sources