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Noise and vibration induced by a pantograph of high-speed trains
The Journal of the Acoustical Society of America, 2012Pantographs mounted on the roof of the train body are high projections when they work. Along with the raising of the train speed, noise and vibration generated by pantographs are significant. This paper is aimed at evaluating the contribution of pantograph noise to overall noise of high-speed trains.
Zongguang Chen +4 more
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Research of the active control for high-speed train pantograph
2008 IEEE Conference on Cybernetics and Intelligent Systems, 2008One of the main problems which limit the trains run at a higher speed is the vibration of the contact force between the pantograph and the catenary. In this paper, three kinds of stiffness curves are fitted by using the non-linear least square method and a unified fitting formula is presented. Based on this, a 3-DOF time-variant model of the pantograph
null Wang Shudong +2 more
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Numerical Analysis of Aerodynamic Noise of a High-Speed Pantograph
2013 Fourth International Conference on Digital Manufacturing & Automation, 2013The aerodynamic noise of pantograph is one of the most important noise sources of high speed trains. Therefore, the reduction of the aerodynamic noise of pantograph becomes very important for reducing the total noise level of the high-speed trains. In this paper, the distribution of dipole sound sources at the surface of a single-arm pantograph and the
Shi Lei +3 more
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Optimizing active control scheme of high-speed pantograph
2009 IEEE 6th International Power Electronics and Motion Control Conference, 2009A novel control scheme for the active suspension in a 4-DOFs pantograph is presented here. The concepts of force cancellation, Skyhook damper and track-following spring are jointly applied to establish an active vibration control system. A force cancellation control scheme is used to isolate the sprung masses.
null Wu Yan +2 more
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A parallel actuated pantograph leg for high-speed locomotion
Journal of Bionic Engineering, 2017High-speed running is one of the most important topics in the field of legged robots which requires strict constraints on structural design and control. To solve the problems of high acceleration, high energy consumption, high pace frequency and ground impact during high-speed movement, this paper presents a parallel actuated pantograph leg with an ...
Wei Guo +5 more
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Physically based modelling of a high-speed pantograph
2014Pantographs are the connecting element between the train and the current-carrying contact wire and are so far the limiting factor in the attempt of reaching higher speeds in the railway industry. Their task is to establish a reliable permanent connection between the train and the contact wire while keeping the needed contact force as low as possible to
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The French High Speed Train (TGV) Pantograph's Aeroacoustics
SAE Technical Paper Series, 1997<div class="htmlview paragraph">After 300 kph the aerodynamics noise emitted by the French High Speed Train T.G.V. (Train Grande Vitesse) becomes preponderant. The pantograph and roof environment located in the top of the rear power car are one of the sources which participate in the overall noise of the train. Investigations in an anechoi'c wind
A. Fages, C. Bertrand
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Research on the Heat Transfer of High-Speed Railway Pantographs
Applied Mechanics and Materials, 2014In the pantograph-catenary system of electric railroads, there is friction heat between high-speed moving pantograph sliders and the contact wires, leading to a temperature increase on the contact surface. On the contact surface under the current collecting conditions, there are also contact resistance heat and arc heat produced by the current effect ...
Jie Ruan +3 more
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Design and Experimental Results of an Active Suspension System for a High-Speed Pantograph
IEEE/ASME Transactions on Mechatronics, 2008In high-speed trains, current collection from the overhead line is assured by an articulated suspension system called the dasiadasiapantographpsilapsila Contact wires and overhead line are flexible systems that are subjected to oscillations that have to be compensated for a satisfactory quality of current collection. In high-speed railway applications,
ALLOTTA, BENEDETTO +2 more
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Output–Feedback Regulation of the Contact-Force in High-Speed Train Pantographs
Journal of Dynamic Systems, Measurement, and Control, 2004One of the main problems in high-speed train transportation systems is to counteract the fast variations of the contact force between the catenary and the pantograph collector end. The variation of the catenary equivalent stiffness, due to the suspending system, originates mechanical oscillations whose frequency and magnitude are larger and larger as ...
PISANO, ALESSANDRO, USAI, ELIO
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