Results 41 to 50 of about 6,316,137 (108)

Effect of Long‐Wavelength Track Irregularities on Vehicle Dynamic Responses

Shock and Vibration, Volume 2019, Issue 1, 2019., 2019
Long‐wavelength track irregularities have obvious influence on ride comfort and running stability of high‐speed trains. Meanwhile, it brings risk to the inspection of track irregularities since ordinary inspection equipment has difficulties in covering long wavelengths. Previous research on the effect of long‐wavelength track irregularities is rare. In
Tao Xin, Pengsong Wang, Yu Ding, Lutz Auersch   +3 more
wiley   +1 more source

Comprehensive system limit state function model and its application for CRTS II track slab

, 2022
Considering safety and serviceability simultaneously, a comprehensive system limit state function (LSF) model and its application for CRTS II track slab is analyzed.
Xuan-Yi Zhang, Yan-Gang Zhao, Chun-Qing Li, Zhao-Hui Lu   +3 more
core   +1 more source

Efficient quantifying track structure cracks using deep learning

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 19, Page 2969-2986, 5 August 2025.
Abstract High‐speed railway ballastless track structure crack detection usually has a high demand for the efficiency of crack detection technology. To overcome the limitation that current crack quantification methods usually require multiple steps, this paper proposes an efficient quantification method for track structure cracks using deep learning ...
Hongshuo Sun, Li Song, Zhiwu Yu
wiley   +1 more source

Influences of Under-Track Foundation Diseases on Track System

Buildings
In order to study the influence of the under-track foundation disease on the track system, based on the CRTS II slab ballastless track in ABAQUS, this paper analyzes the influence of the overall temperature, temperature gradient, CA mortar layer ...
Jinbao Yao, Xiaoteng Sun, Zhikun Song, Yueyue Chen   +3 more
doaj   +1 more source

Diagnosis of high‐speed railway ballastless track arching based on unsupervised learning framework

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 11, Page 1445-1465, 30 April 2025.
Abstract Vehicle‐mounted detection methods have been widely applied in the maintenance of high‐speed railways (HSRs), providing feasibility for diagnosing ballastless track arching. However, applying detection data faces several key limitations: (1) The threshold mostly requires manual setting, making recognition accuracy highly subjective; (2) the ...
Xueyang Tang, Yi Wang, Xiaopei Cai, Fei Yang, Yue Hou   +4 more
wiley   +1 more source

Intelligent Detection of Surface Defects in High‐Speed Railway Ballastless Track Based on Self‐Attention and Transfer Learning

Structural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
The detection of ballastless track surface (BTS) defects is a prerequisite for ensuring the safe operation of high‐speed railways. Traditional convolutional neural networks fail to fully exploit contextual information and lack global pixel representations.
Wenlong Ye, Juanjuan Ren, Chen Li, Wengao Liu, Zeyong Zhang, Chunfang Lu, Hoon Sohn   +6 more
wiley   +1 more source

Microstructure in Adhesion Development Process and Strength Formation Mechanism in Early Stage of Cold Recycled Mixture with Emulsified Asphalt

Advances in Civil Engineering, Volume 2024, Issue 1, 2024.
With the large‐scale maintenance and renovation of asphalt pavement, a considerable amount of reclaimed asphalt pavement (RAP) will be generated. Stacking these wastes occupies a large amount of land and seriously damages the ecological environment. Hence, efficient regeneration of RAP through recycling technology has gained more and more attention. In
Xueying Zhao, Baofu Ma, Afshar A. Yousefi   +2 more
wiley   +1 more source

Thermal arching and interfacial damage evolution of CRTS-II slab track under solar radiation in alpine and plateau regions

, 2023
Arch deformation and interface failure of CRTS-II slab track have become crucial issues for the operation safety of high-speed railways. However, few researchers investigated the mechanics and deformation behaviour on CRTS-II slab track exposed to high ...
Ping Lou, Tao Shi
core   +1 more source

Effect of temperature gradient-induced periodic deformation of CRTS Ⅲ slab track on dynamic responses of the train-track system [PDF]

Purpose – Temperature is an important load for a ballastless track. However, little research has been conducted on the dynamic responses when a train travels on a ballastless track under the temperature gradient.
Wang Jijun, Wang Meng, Shi Cheng, Zhang Huanxin   +3 more
core   +1 more source

Numerical Simulation on the Pouring Process of Self-compacting Concretein CRTS III Slab Track [PDF]

, 2023
In this study, a fluid-solid coupling model describing the pouring process of self-compacting concrete (SCC) in CRTS III ballastless slab track in straight section was established based on a coupled Eulerian-Lagrangian method, which realized the ...
Wu, Kai, Zhang, Haonan, Zhang, Yanrong
core