[HTML][HTML] A robust bridge rivet identification method using deep learning and computer vision

T Jiang, GT Frøseth, A Rønnquist - Engineering Structures, 2023 - Elsevier
Timely and effective inspection ensures safe operation and optimum resource use for
infrastructure maintenance and renewal. Robot advances allow rapid collection of …

[HTML][HTML] A 6-DOF camera motion correction method using IMU sensors for photogrammetry and optical measurements

T Jiang, GT Frøseth, S Wang, ØW Petersen… - … Systems and Signal …, 2024 - Elsevier
Environmental conditions such as wind and ground traffic introduce motion in camera
measurement systems and affect measurement accuracy. Conventional camera motion …

[HTML][HTML] A detailed investigation of uplift and damping of a railway catenary span in traffic using a vision-based line-tracking system

T Jiang, A Rønnquist, Y Song, GT Frøseth… - Journal of Sound and …, 2022 - Elsevier
For electrified railways, the catenary dynamic behavior is critical to ensure a robust and
steady current collection quality for electric trains. The current collection is achieved as the …

[HTML][HTML] Assessment of pantograph-catenary interaction in a railway overlap section via a novel optical-based method

T Jiang, GT Frøseth, P Nåvik, A Rønnquist - Mechanism and Machine …, 2022 - Elsevier
Smooth pantograph-catenary contact is essential for regular train operation. However,
catenary section overlaps are locations where peak contact forces occur, which significantly …

Modelling and Analysis of Expansion Joints' Effect on Dynamic Performance of Railway Rigid Overhead System

X Feng, Z Hu, S Gao, F Duan, W Chu, Y Song - Sensors, 2023 - mdpi.com
This study focuses on developing a comprehensive model of a rigid overhead system, which
includes essential components such as the suspension structure, positioning clamp, and …

A visual inspection and diagnosis system for bridge rivets based on a convolutional neural network

T Jiang, GT Frøseth, A Rønnquist… - Computer‐Aided Civil …, 2024 - Wiley Online Library
Rivets are critical mechanical fasteners in steel bridges, and rivet defects may cause
catastrophic failure. This study proposes a convolutional neural network (CNN)‐based …

Hardware-in-the-loop test bench for simulation of catenary–pantograph interaction (CPI) with linear camera measurement

A Correcher, C Ricolfe-Viala, M Tur, S Gregori… - Sensors, 2023 - mdpi.com
Catenary–pantograph contact force is generally used for assessment of the current
collection quality. A good current collection quality not only increases catenary lifetime but …

Study on the dynamic performance of high-speed railway catenary system with small encumbrance

Z Xu, Z Liu, Y Song - IEEE Transactions on Instrumentation and …, 2022 - ieeexplore.ieee.org
The catenary system is the only source of power for high-speed railways, which carries the
electric current to be collected by a pantograph mounted on the train roof via sliding contact …

[PDF][PDF] Convergence Study for the Simulation of Stitched Railway Catenary Dynamics and Design Verification of a High-Speed System for Sweden

B Schick, WZ Liu, S Stichel - 2024 - ctresources.info
This paper describes the results of a parametric convergence study on dynamic pantograph-
catenary interaction simulations performed with the simulation tool CaPaSIM 3D. The …