Results 71 to 80 of about 7,617 (237)
Wheel/rail contact model for rail vehicle dynamics
Comptes Rendus. Mécanique, 2011 An advanced method using progressive concept of correspondence is applied to create new wheel/rail model based on the virtual penetration theory. The geometry and mechanism of contact are solved simultaneously because of the independency in a defined correspondence.
Mohammad Mahdi Jalili, Hassan Salehi
openaire +1 more source
steel research international, EarlyView.Paint baking of resistance spot welded joints of 2.0 GPa warm‐stamped medium‐Mn steel activates low‐temperature tempering, forming fine cementite in the fusion zone and enhancing toughness. Crack propagation resistance increases, shifting the failure mode from partial interfacial to complete pullout, with peak load and energy absorption rising ...
Sunusi Marwana Manladan +8 more
wiley +1 more source
Monitoring track irregularities using multi-source on-board measurement data
Railway Engineering ScienceAccurate monitoring of track irregularities is very helpful to improving the vehicle operation quality and to formulating appropriate track maintenance strategies.
Qinglin Xie +6 more
doaj +1 more source
Displacement Identification by Computer Vision for Condition Monitoring of Rail Vehicle Bearings. [PDF]
Sensors (Basel), 2021 Lei L, Song D, Liu Z, Xu X, Zheng Z.
europepmc +1 more source
steel research international, EarlyView.The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley +1 more source
Numerical study on aerodynamic noise reduction of high-speed pantograph using base-frame fairing
Railway Engineering ScienceCombining the improved delayed detached eddy simulation and Ffowcs Williams–Hawkings equation, a numerical study is conducted to explore the potential of base-frame fairings in aerodynamic noise reduction of high-speed pantographs and deepen the ...
Jiawei Shi, Jiye Zhang, Tian Li
doaj +1 more source
A framework for wheel profile wear prediction of high-speed trains considering tread modification
FrictionTread modification has gained significant attention in recent years as a means to address the issue of wheel hollow wear. The wear resulting from tread modification can alter the wheel profile, thereby impacting the wheel–rail contact relationship and ...
Yuchen Xie +6 more
doaj +1 more source
Structural Concrete, EarlyView.Abstract Automating bridge inspections requires more than detecting individual damage instances. It demands systems capable of describing, contextualizing, and interpreting damage in an inspection‐relevant manner. Conventional computer vision approaches, such as object detection and segmentation, primarily address visual recognition tasks and are ...
Rona Firdes Çelik +2 more
wiley +1 more source
Defining Lines of Defense Against Change Propagation Using Cause‐Consequence Analysis
Systems Engineering, EarlyView.ABSTRACT Complex engineered systems are the core of modern society. So that engineered systems and infrastructure can be sustainable and offer value over the course of their lifespan, there is a growing need for such systems to be changeable. Yet, establishing and operationalizing changeability can be challenging due to the potential for change ...
Lindsey Jacobson, Scott Ferguson
wiley +1 more source
Effect of loading rate on tensile properties of GFRP/Al alloy adhesive-riveted hybrid joints
Hanjie xuebaoIn order to investigate the effect of loading rate on the tensile properties of GFRP/Al adhesive-riveted hybrid joints, single-rivet and double-rivet adhesive-riveted hybrid joints were used as research objects, and dynamic tensile tests were conducted ...
Haiyang LI +6 more
doaj +1 more source