Results 11 to 20 of about 3,964 (223)
Optimization of high-speed railway pantographs for improving pantograph-catenary contact
Theoretical and Applied Mechanics Letters, 2013 AbstractA crucial system for the operation of high-speed trains is the pantograph catenary interface as it is the sole responsible to deliver electrical power to the train. Being the catenary a stationary system with a long lifespan it is also less likely to be redesigned and upgraded than the pantographs that fit the train vehicles.
Ambrósio, Jorge +2 more
openaire +3 more sources
A Novel Method for Calculating the Radiated Disturbance from Pantograph Arcing in High-speed Railway [PDF]
IEEE Transactions on Vehicular Technology, 2017 Pantograph arcing is a key electromagnetic disturbance source to affect train control system in high-speed railway. Since the characteristics of pantograph arcing is related to train speed, it is necessary to investigate effective numerical modeling and ...
Andy Marvin +5 more
core +3 more sources
Effect of cavity flow control on high-speed train pantograph and roof aerodynamic noise
Railway Engineering Science, 2020 The pantograph and its recess on the train roof are major aerodynamic noise sources on high-speed trains. Reducing this noise is particularly important because conventional noise barriers usually do not shield the pantograph.
Hogun Kim, Zhiwei Hu, David Thompson
doaj +3 more sources
The Energy Benefits of the Pantograph Wing Mechanism in Flapping Flight: Case Study of a Gull [PDF]
, 2015 Bird wings generally contain a 4-bar pantograph mechanism in the forearm that enables the wrist joint to be actuated from the elbow joint thus reducing the number of wing muscles and hence reducing the wing inertia and inertial drag.
Sattler, Gene D.
core +6 more sources
Assessment of the worthwhileness of efficient driving in railway systems with high-receptivity power supplies [PDF]
, 2020 Eco-driving is one of the most important strategies for significantly reducing the energy consumption of railways with low investments. It consists of designing a way of driving a train to fulfil a target running time, consuming the minimum amount of ...
Cucala, A. P. +4 more
core +1 more source
Nihon Kikai Gakkai ronbunshu, 2022 Toward an advanced high-speed railway system, there are ongoing extensive studies on both of railway vehicles and infrastructures. Reducing the aerodynamic noise emitted from the pantograph heads is one of the most important subjects for high-speed ...
Takayuki USUDA +5 more
doaj +1 more source
Applied Sciences, 2021 (1) Background: The ratio of railway tunnel to line is larger, which produces tunnel entrance and exit effect, aerodynamic resistance, and sudden pressure changes.
Zhanling Ji +4 more
doaj +1 more source
Miniaturized modular manipulator design for high precision assembly and manipulation tasks [PDF]
, 2012 In this paper, design and control issues for the development of miniaturized manipulators which are aimed to be used in high precision assembly and manipulation tasks are presented.
Kunt, Emrah Deniz +3 more
core +1 more source
Engineering Applications of Computational Fluid Mechanics, 2023 The pantograph is one of the primary sources of aerodynamic drag and noise during the operation of a high-speed train. To investigate the impact of the pantograph fairing on the aerodynamic performance at various train heights, six computational models ...
Hongkang Liu +6 more
doaj +1 more source
Aerodynamic Characteristics of High-speed Train Pantographs Based on Jet Flow Control [PDF]
Journal of Applied Fluid MechanicsThe pantograph is a critical instrument that significantly affects the aerodynamics of high-speed trains, posing a considerable challenge to the energy conservation and environmental protection of trains.
S. Huang +5 more
doaj +1 more source