Results 41 to 50 of about 9,171 (215)
Capability and Limitations of a Tuned Mass Damper for a 15‐MW Semisubmersible Floating Wind Turbine
ABSTRACT Large floating offshore wind turbines (FOWTs) under coupled aerodynamic and hydrodynamic loading exhibit broadband low‐frequency response in addition to the platform‐pitch resonance. Tuned mass dampers (TMDs) have been studied for a range of applications, but their net benefit under fully coupled operational conditions has not been quantified.
Yu Gao +3 more
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ObjectiveAs the core for power supply system of urban rail transit vehicles, the pantograph-catenary system undertakes the important functions of transmitting electrical energy to vehicles through catenary and ensuring their normal operation.
Shiyu ZHANG +3 more
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A Fast Simulation Model of Pantograph–Stitched-Catenary Interaction in Long-Distance Travel
The increasing operation speed of high-speed trains allows the pantograph to continuously interact with the catenary over a long distance in a short time, and many new methods have been developed to efficiently calculate its dynamics.
Like Pan +4 more
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Fire resistance of trapezoidal sheeting connected to a concrete beam
Abstract Cold‐formed steel trapezoidal sheeting bending resistance degrades significantly in fire due to the small thickness of the profiles. The response can subsequently transition to catenary action, which develops only with sufficient restraint from fasteners. Fasteners therefore often govern the fire performance. In the presented study, connection
Aleš Chovanec +2 more
wiley +1 more source
Defect Diagnosis of Rigid Catenary System Based on Pantograph Vibration Performance
The condition of a catenary is significant to ensure a high current collection quality. Owing to the dynamic interaction between the pantograph and the catenary system, the vibration of the pantograph can be used to analyze the condition of the catenary ...
Mengying Tan, Haishangyang Li, Lei Nie
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Adaptive and Robust Fault-Tolerant Tracking Control of Contact force of Pantograph-Catenary for High-Speed Trains [PDF]
This paper presents a modified multi-body dynamic model and a linear time-invariant model with actuator faults (loss of effectiveness faults, bias faults) and matched and unmatched uncertainties.
Yan, Xinggang +3 more
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Simplified dynamic analysis of structures exhibiting catenary actions under column removal
Abstract Accidental actions can impose on structures substantial loading demands. Improper design could lead to a partial or complete progressive collapse. Ensuring that sufficient alternative loading paths are available in the structure, the occurred loads could be safely redistributed.
Christoforos Dimopoulos
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Introduction of variability into pantograph–catenary dynamic simulations [PDF]
Currently, pantograph-catenary dynamic simulations are mainly based on deterministic approaches. However, the contact force between catenary and pantograph depends on many key parameters that are not always quantified precisely and can vary in time and ...
BALMES, Etienne +3 more
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This article investigates the post‐fracture bending response of 2‐ply laminated (LG) samples composed of annealed (AN) glass and bonded by EVA or SG interlayers. Attention is given to the effect of partial and total glass fracture, and to the cyclic response of fractured LG specimens under large displacements.
Chiara Bedon, Nicola Cella
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Contact Force Surrogate Model and Its Application in Pantograph–Catenary Parameter Optimization
The significant increase in the speed of high-speed trains has made the optimization of pantograph–catenary parameters aimed at improving current collection quality become one of the key issues that urgently need to be addressed.
Rui Zhou, Xianghong Xu
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