Results 41 to 50 of about 7,582 (224)

A Novel Rail Damage Fault Detection Method for High-Speed Railway

Sensors
With the vigorous development of speedy railway technology, steel rails, as an important structural infrastructure in speedy railways, play a crucial role in ensuring the safety of the entire speedy railway operation.
Yu Wang, Bingrong Miao, Ying Zhang, Zhong Huang, Songyuan Xu   +4 more
doaj   +1 more source

Theory and practice for assessing structural integrity and dynamical integrity of high-speed trains [PDF]

Railway Sciences
Purpose – The safety and reliability of high-speed trains rely on the structural integrity of their components and the dynamic performance of the entire vehicle system. This paper aims to define and substantiate the assessment of the structural integrity
Weihua Zhang, Yuanchen Zeng, Dongli Song, Zhiwei Wang   +3 more
doaj   +1 more source

Energy Optimization Models for the Locomotive Assignment Problem

Networks, EarlyView.
ABSTRACT Reducing energy consumption is a key objective in transportation. Using detailed infrastructure data, this study introduces the Green Locomotive Assignment Problem (GLAP) to minimize energy consumption in railway operations by efficiently assigning locomotives to pre‐scheduled trains.
Gislind Baumgartner, Fatih Kocatürk, Ninja Scherr, Jan Fabian Ehmke   +3 more
wiley   +1 more source

Analysis of the traction forces of two adjacent linear induction motors

Scientific Reports
Linear induction motors (LIMs) are positioned head-to-tail in medium and low-speed maglev (MLSM) trains, and the interaction due to small spacing between two LIMs is not yet clear.
Min Zhang, Shujuan Luo, Yu Liu, Xubin Zhuang, Weihua Ma   +4 more
doaj   +1 more source

Study on the Vibration Behaviour of Locomotives Under Wheel Polygon Excitation and Its Quantitative Detection Method

IEEE Access
Wheel polygons can significantly impair the operational quality, service life and ride comfort of railway systems and even threaten the safety of train operations.
Weiwei Gan, Zhonghao Bai, Qinglin Xie, Bingguang Wen, Xinyu Qian, Zhigang Hu, Gongquan Tao, Zefeng Wen, Kan Liu   +8 more
doaj   +1 more source

Dynamic target template matching for railway catenary suspension motion detection in wind area

International Journal of Distributed Sensor Networks, 2018
A dynamic target template matching method was proposed to identify railway catenary suspension movements of wind-induced vibration in wind area. Catenary positioning point was taken as the target template, which was compared with equal-sized image ...
Wei Zhou, Heting Xiao, Zhonggang Wang, Lin Chen, Shaoqing Fu   +4 more
doaj   +1 more source

Analysis of the Crashworthiness of Novel Flax‐Fiber Hybrid Reinforced Three‐Dimensional Woven Composites

Polymer Composites, EarlyView.
Through‐thickness binder yarns in tailored three‐dimensional woven flax‐fiber composites stabilize damage propagation and promote progressive crushing, enhancing crashworthiness and energy absorption. ABSTRACT This study investigates the impact crashworthiness performance of flax‐fiber reinforced three‐dimensional (3D) composites through a ...
H. F. M. de Queiroz, A. Ciampaglia, M. D. Banea, R. Ciardiello   +3 more
wiley   +1 more source

Rate-temperature coupled deformation mechanism and constitutive parameters of catenary copper-magnesium alloy materials for high-speed railway

Baozha yu Chongji
With the increasing speed of trains, the impacts of mechanical shock, arc heat, and Joule heat on the high-speed railway catenary system have become increasingly significant.
Hongli WANG, Zelin ZENG, Xingya SU, Jing LING, Guiming MEI, Yanxiang LIANG, Lin JING   +6 more
doaj   +1 more source

Influence of Thermal Cycling on Friction, Wear, and Damage Evolution of Fused Deposition Modeling of 3D‐Printed Glass Fiber Reinforced Polylactic Acid Composites

Polymer Composites, EarlyView.
Schematic illustration of the experimental procedure of the specimens. ABSTRACT This research work investigated the effect of the cyclic thermo‐hygrometric aging regime between −20°C and +40°C with 0–400 cycles on the reciprocating tribological properties of fused deposition modeling (FDM) printed polylactic acid (PLA) and the same material reinforced ...
Sinan Fidan, Satılmış Ürgün, Nevin Gamze Karsli, Taner Yılmaz, Mustafa Özgür Bora, Mehmet İskender Özsoy   +5 more
wiley   +1 more source

Research on shear fracture behavior of bolt and design method for retractable coupler

Scientific Reports
To ensure the coupler’s adequate retraction in rail vehicle collisions, this study systematically investigates the shear fracture behavior of bolts, focusing on the effects of geometric parameters and loading dynamics.
Haoxu Ding, Tao Zhu, Long Yang, Xiaorui Wang, Bing Yang, Shoune Xiao, Yi Yang, Yanwen Liu   +7 more
doaj   +1 more source