Results 161 to 170 of about 15,605,525 (207)

Active Control of a High-Speed Pantograph

Journal of Dynamic Systems, Measurement, and Control, 1997
The design and performance of an active controller for a pantograph which collects current for a high-speed train are considered. A dynamic model of the pantograph/catenary system is described and control objectives are established. A design which incorporates a frame-actuated controller and requires only a single measurement is described.
O'Connor, D. N., Eppinger, S. D., Seering, W. P., Wormley, D. N.   +3 more
openaire   +2 more sources

An Improved Air Spring Model for Pantograph on the High-Speed Train

2022
Air spring’s modelling is a relevant subject in the railway field, both for bogie and pantograph suspensions. Considering thermodynamic model has a great advantage for its accuracy and reliability, efforts and huge progress have been made before. However, there are still some parts where efforts could be made: although the air spring’s force and ...
Liu J., Zhou N., Collina A., Carnevale M., Zhang W.   +4 more
openaire   +2 more sources

Active Control of Fuzzy for High-Speed Pantograph

Applied Mechanics and Materials, 2012
The regular current collection is very important for high-speed train， and can be obviously improved by the use of active control. In order to study the impact of the fuzzy active control on pantograph-catenary system, the model ohe simulation model is created with the software of simulink.
Gang Yang, Zhong Mei Dai, Fu Li, Zheng Zhi Luo   +3 more
openaire   +1 more source

Active Control of a Pantograph Mechanism for High Speed Rail System

2019 IEEE 9th International Conference on System Engineering and Technology (ICSET), 2019
The reduction of vibrations in high speed rail system with pantograph mechanism is crucially important to ensure the best riding comfort for passengers. The objective of this study is to stimulate an active control of a pantograph mechanism in high speed rail system. This project presents an approach to increase the performance of high speed rail train
Nur Alyani Fakharulrazi Wind, Fitri Yakub, Mohamed Sukri Mat Ali Wind, Pauziah Muhammad, Sheikh Ahmad Zaki, Zul Hilmi Che Daud   +5 more
openaire   +2 more sources

Influence of a high-speed train passing through a tunnel on pantograph aerodynamics and pantograph–catenary interaction

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2016
Aerodynamics of trains running inside tunnels change more significantly in comparison with open air scenarios. It has been confirmed that the lateral vibration as well as the aerodynamic drag of the trains is increased and the micro-pressure wave is produced at the tunnel exit when the trains are passing through tunnels.
Li, Ruiping, Zhang, Weihua, Ning, Zhou, LIU, BINBIN, Zou, Dong, Liu, Wei   +5 more
openaire   +1 more source

Output-feedback control of the contact-force in high-speed-train pantographs

Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228), 2002
One of the main problems in high-speed train transportation systems is the control of the contact force between the catenary and the pantograph collector end. The equivalent stiffness of the catenary is not constant and this leads to contact force oscillations whose frequency and magnitude mainly depend on the train velocity.
LEVANT A, PISANO, ALESSANDRO, USAI, ELIO
openaire   +1 more source

Thermodynamic models of the air spring on the high-speed pantograph

Vehicle System Dynamics, 2023
The modelling method of the air spring and its additional pneumatic system has been studied more frequently in recent years. As for the railway field, the study of the secondary suspension system of the bogie is the most popular, while little focus is on the air spring of the pantograph.
Ning Zhou, Jiurui Liu, Marco Carnevale, Andrea Collina, Weihua Zhang   +4 more
openaire   +2 more sources

A feasibility study of an aerodynamic control for a high speed pantograph

2007 IEEE/ASME international conference on advanced intelligent mechatronics, 2007
In the present paper an alternative way to apply active control on a high speed train pantograph is proposed. The control is based on two main concepts: the use the incident air flow on the pantograph as power source, and the application of the control force directly on the collector, i.e.
COLLINA, ANDREA, FACCHINETTI, ALAN, RESTA, FERRUCCIO   +2 more
openaire   +1 more source

An instrumented pantograph for high speed current collection measurements

4th IET International Conference on Railway Condition Monitoring (RCM 2008), 2008
An instrumented pantograph has been developed by DeltaRail Group Limited that essentially exhibits the same aerodynamic characteristics as a standard high speed pantograph, which should assist engineers undertaking current collection tests and condition monitoring the overhead contact system.
P.M. Keen, R.E. Phillpotts, S. Conway
openaire   +1 more source

Investigation of Pantograph Effect on High-Speed Train Noise

Applied Mechanics and Materials, 2012
Using microphone and removable planar microphone array, the exterior and interior vehicle noise near pantograph were investigated when the train ran at 250-350km/h, the noise spectrum characters of these areas were obtained. The results show that at the pantograph seat and in the vehicle below pantograph, the noise spectrum show a broad band ...
Xiao Feng Zhang, You Gang Xiao, He Lian Deng, Jian Feng Huang   +3 more
openaire   +1 more source