Results 1 to 10 of about 483 (156)
Modeling and Simulation of the Aerodynamic Noise of High-Speed Train’s Pantograph
Journal of Engineering, 2022 This article aims to investigate the aerodynamic noise of the pantograph of the high-speed trains in different operating conditions. CFD technique was used to assess the acoustic noise of the pantograph components.
R. E. Shaltout +2 more
doaj +2 more sources
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 +3 more sources
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.
Jorge Ambrosio, João Pombo
exaly +2 more sources
Reduction of Pantograph Noise of High-Speed Trains
Journal of Mechanical Systems for Transportation and Logistics, 2010 In order to reduce the pantograph noise that greatly contributes to overall noise, we have developed two types of low-noise pantograph. Further noise reduction was realized by the effects of attenuation of the pantograph noise insulation plate and by using only one pantograph per trainset.
KURITA, Takeshi +6 more
exaly +3 more sources
Advances in Mechanical Engineering, 2019 A pantograph in contact with a catenary for power supply is one of the major aerodynamic noise sources in high-speed trains. To reduce pantograph noise, it is essential to understand the noise generation mechanism of the pantograph.
Hee-Min Noh
doaj +2 more sources
Applied Sciences, 2019 The high-speed-train pantograph is a complex structure that consists of different rod-shaped and rectangular surfaces. Flow phenomena around the pantograph are complicated and can cause a large proportion of aerodynamic noise, which is one of the main ...
Yongfang Yao +4 more
doaj +3 more sources
Pantograph Slider Detection Architecture and Solution Based on Deep Learning [PDF]
SensorsRailway transportation has been integrated into people’s lives. According to the “Notice on the release of the General Technical Specification of High-speed Railway Power Supply Safety Testing (6C System) System” issued by the National Railway ...
Qichang Guo, Anjie Tang, Jiabin Yuan
doaj +2 more sources
Effect of Pantograph’s Main Structure on the Contact Quality in High-Speed Railway [PDF]
Shock and Vibration, 2021 In general, the electrical energy is provided to the high-speed train through the pantograph-catenary sliding contact. The variation of the dynamic contact force is expected to be small enough to keep the good current collection quality and to extend the
Jiangwen Wang, Guiming Mei
doaj +2 more sources
Pantograph Detection Algorithm with Complex Background and External Disturbances [PDF]
Sensors, 2022 As an important equipment for high-speed railway (HSR) to obtain electric power from outside, the state of the pantograph will directly affect the operation safety of HSR.
Ping Tan +7 more
doaj +2 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