Results 11 to 20 of about 15,605,525 (207)
Study on Applicability of V500 High-speed Pantograph Models
机车电传动, 2013 To analyze applicability of pantograph models, dynamic parameter identifying was implemented for domestic independentdevelopedV500 high-speed pantograph prototype, and pantograph two-lumped-mass model and three-lumped-mass model kinetic parameterwere ...
ZHONG Wei-guang +2 more
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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
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A study on aerodynamic pass-by noise based on equivalent source method [PDF]
Scientific ReportsPass-by noise generated by high-speed trains is an important influencing factor on the surrounding environment and is getting more and more attention with the increase of speed.
Shumin Zhang, Jiawei Shi, Haoran Wang
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Modeling and robust control of a high speed train pantograph
Mechanical Engineering Journal, 2015 For high-speed trains, active control of the pantograph is crucial technology to collect electrical current from the overhead contact wire. In this paper, a mathematical model of the pantograph-catenary system is developed to design a controller, and then a sliding mode controller is proposed to regulate the contact force in the presence of variation ...
YOKOYAMA, Makoto +5 more
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Numerical Investigation on Aerodynamic Drag and Noise of Pantographs with Modified Structures [PDF]
Journal of Applied Fluid Mechanics, 2022 It is well known that the pantograph, which works as a complex component of high-speed trains, is an important source of aerodynamic drag and aerodynamic noise of a high-speed train (HST) that can affect HST performance, comfort for passengers, and ...
Y. Yao +5 more
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Approximate solutions of hybrid stochastic pantograph equations with Levy jumps [PDF]
, 2013 We investigate a class of stochastic pantograph differential equations with Markovian switching and Levy jumps. We prove that the approximate solutions converge to the true solutions in 퐿 2 sense as well as in probability under local Lipschitz condition ...
Mao, Wei +3 more
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Shock and Vibration, 2021 The numerical tools can be used to facilitate the design of the railway pantograph-catenary system. The validation of the current numerical results is mostly performed at a speed slower than 350 km/h. This paper aims at the validation and analysis of the
Jia Yang +5 more
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The Construction Parameter Optimization of High-Speed Pantograph
Journal of Physics: Conference Series, 2021 Abstract The composition structure of high-speed pantograph is analyzed, which is transformed into a four-rod mechanism, and the relative motion relation and its position coordinate equations are built by constructing a kinematics model. Based on the equations of motion of pantograph and the simulation of motion pattern between elevation
Jianpu Wang, Chenglong Ren, Lei Hong
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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
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Adaptive and Robust Fault-Tolerant Tracking Control of Contact force of Pantograph-Catenary for High-Speed Trains [PDF]
, 2015 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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