Results 31 to 40 of about 3,675 (228)
Electromagnetic suspension (EMS) is an important type of maglev train systems. With commercial success in the low-speed maglev train, developing a medium-speed maglev type with a top speed of 200 km/h based on the current low-speed maglev technology has ...
Jingfang Ding +3 more
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Field experimental tests and analyses of suspension frame vibration of low-medium speed maglev train
Pushed by social demands, China has continuously developed its low-medium speed maglev transportation systems in recent decades. However, with the increase of the running mileage of the train, high frequency vibration of suspension frame gradually ...
Fengyu Ou +4 more
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The suspension system of the EMS (Electro-Magnetic Suspension) medium-and-low-speed maglev train is affected by the eddy current effect when the train is in motion. This is a crucial problem related to the improvement of train operation speed.
Qing Yang, Zhenxiang Chi, Lianchun Wang
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Indirect economic effects of a rail link along the afsluitdijk [PDF]
New transport infrastructure has a myriad of short and long run effects. The effects on population and economic activity are most difficult to estimate. This paper introduces three different models to estimate the impacts of new infrastructure on labour ...
Oosterhaven, J.,, Romp, W.E.,
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An integrated wind risk warning model for urban rail transport in Shanghai, China [PDF]
The integrated wind risk warning model for rail transport presented has four elements: Background wind data, a wind field model, a vulnerability model, and a risk model. Background wind data uses observations in this study. Using the wind field model
Grimmond, C. S. B. +5 more
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Sliding‐Mode Control of Electromagnetic Suspension Systems Considering Disturbance Compensation
This study proposes an integrated control strategy for magnetic levitation systems, combining a cascaded linear extended state observer with an improved sliding‐mode control. This method accurately estimates and compensates for disturbances, significantly enhancing suspension stability and rejection capability.
Hailin Hu +4 more
wiley +1 more source
Modeling and Simulation of Traction Power Supply System for High-Speed Maglev Train
The electromagnetic suspension high-speed maglev train system uses long-stator linear synchronous motors (LLSMs) as levitation and traction mechanisms.
Ziyu Zou, Mengfei Zheng, Qinfen Lu
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In this paper, a 3D multi‐source GBSM model is proposed for the vacuum tube scenario using LCX. By equating the periodic slots to multiple magnetic dipole antennas, the electric field distribution of LCX is deduced, and the CIR expression is derived. Based on this, the multi‐link spatial‐temporal correlations, including the spatial CCF and temporal ACF,
Kai Wang +4 more
wiley +1 more source
This paper proposes a novel power loss reduction PWM (PLRPWM) strategy for three‐level neutral point clamped inverters. The proposed strategy aims to achieve multi‐objective optimisation by balancing low output harmonics, reduced switching losses and a balanced neutral‐point potential. ABSTRACT Three‐level neutral point clamped (3L‐NPC) converters have
Chaoqun Xiang +5 more
wiley +1 more source
Root Locus-Based Magnetic Levitation System Stabilization: An Undergraduate Control System Design Approach [PDF]
The subject of control system design has evolved considerably over the years. Although several design techniques and strategies have been adopted to realize control systems that meet a predetermined set of performance criteria, the fundamental problem ...
Awelewa, A. A. +3 more
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