Results 31 to 40 of about 7,233 (223)

Remaining Useful Life for Heavy-Duty Railway Cast Steel Knuckles Based on Crack Growth Behavior with Hypothetical Distributions

Chinese Journal of Mechanical Engineering
The current research on the integrity of critical structures of rail vehicles mainly focuses on the design stage, which needs an effective method for assessing the service state.
Chao Wang, Tao Zhu, Bing Yang, Shoune Xiao, Guangwu Yang   +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

Multi‐Dimensional Conductive Nanocomposites for Flexible Electronics

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Multi‐dimensional conductive nanocomposites integrate 0D, 1D, and 2D nanomaterials through spatial structure regulation and interface engineering, achieving “1 + 1 > 2” synergistic effects. By leveraging 0D filling to reduce contact resistance, 1D bridging to construct continuous conductive paths, and 2D supporting to enhance mechanical stability ...
Tianyu Wang, Ruimin Cai, Abbas Ali, Lizhe Li, Li Yang, Hulin Zhang, Xuge Fan, Yumin Xia, Wenyong Lai, Linmao Qian, Tiehu Li, Guosheng Shao, Liang Tian   +12 more
wiley   +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

Evaluation of Modeling Assumptions for Predicting Structural Damage and Train Derailment Under Earthquake Loading

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The rapid development of new railway networks and the aging of existing infrastructure in seismic‐prone regions continue to motivate the need for efficient methods to simulate the dynamic behavior of coupled train track structure systems. While detailed train–structure interaction (TSI) models can capture complex mechanisms, they are often too
Miguel A. Gomez, Matthew J. DeJong
wiley   +1 more source

Bolt loosening evaluation method based on normalized screw root equivalent stress and loosening life curve

Scientific Reports
Bolts are subject to complex loads and prone to loosening failure in transverse random service environments. To establish a loosening life evaluation method applicable to different types of bolts, numerous bolt clamping-force recession curves were ...
Guangwu Yang, Han Zhao, Long Yang, Wenyang Shao, Shoune Xiao, Tao Zhu, Yuqing Yuan   +6 more
doaj   +1 more source

Exploring production of social and economic value in social enterprises through a business model framework

Strategic Change, EarlyView.
Abstract This study explores how social enterprises create social and economic value through business models that support ex‐offenders. The work was motivated by a request for help from an entrepreneur wishing to establish a business that supports ex‐offender rehabilitation.
Elizabeth Green, Peter Bradley, Glenn Parry   +2 more
wiley   +1 more source

Dynamic characteristics analysis of rack railway track system under traction conditions by experimental test

Railway Engineering Science
The dynamic characteristics of the track system can directly affect its service performance and failure process. To explore the load characteristics and dynamic response of the track system under the dynamic loads from the rack vehicle in traction ...
Zhihui Chen, Guojun Yang, Zaigang Chen, Haitao Zhang, Jizhong Yang, Wanming Zhai   +5 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

Robustness Assessment of Public Transport Networks in Various Graph Representations: Systematic Review, Decision Support, and Case Study

Networks, EarlyView.
ABSTRACT The analysis of certain properties of the underlying graph of a public transport network generates insights about the network's structure. Hereby, the choice of the graph representation depends on a trade‐off between complexity reduction and information preservation to adequately model a public transport network.
Michael Palk, Stefan Voß, Raka Jovanovic   +2 more
wiley   +1 more source