Results 11 to 20 of about 5,243 (170)
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
core +4 more sources
3D Liquid Crystal Framework Enclosing Dual Compartments. [PDF]
Angew Chem Int Ed EnglA new type of liquid crystal phase is reported, having the conjugated rod‐like molecular cores form a 3D framework of elongated octahedral cages filled alternatively with alkyl and fluoroalkyl pendant chains. The cages are held together by flexible H‐bonding hinges, making them adaptable to thermal expansion and stable in a wide temperature range.
Zhao YY +7 more
europepmc +3 more sources
Pantograph catenary dynamic optimisation based on advanced multibody and finite element co-simulation tools [PDF]
, 2013 This paper presents recent developments undertaken by the SNCF Innovation & Research Department on numerical modelling of pantograph catenary interaction. It aims at describing an efficient co-simulation process between finite element (FE) and multibody (
BALMES, Etienne +4 more
core +1 more source
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
core +1 more source
Pantograph/Catenary Contact Formulations [PDF]
, 2016 In this investigation, the pantograph/catenary contact is examined using two different formulations. The first is an elastic contact formulation that allows for the catenary/panhead separation and for the analysis of the effect of the aerodynamic forces,
C.M. Pappalardo (8001764) +2 more
core +6 more sources
Research on Control of Short EMU Reconnection Passing Neutral Section
机车电传动, 2021 In order to solve the problem that the reconnection of CRH6F-A/CRH6A-A short intercity EMU can not meet the requirements of the length of neutral section of domestic lines, the reconnection control method of short intercity EMU was studied,and the ...
Wantao XU +4 more
doaj
Analysis of Pantograph Key Parameters Suitable for 200 km/h Train Overhead Rigid Catenary
Chengshi guidao jiaotong yanjiuObjective The compatibility between the ORC (overhead rigid catenary) and the pantograph directly affects the current collection performance of the PC (pantograph-catenary) system.
TIAN Cai, FENG Chao, DAI Hongyu
doaj +1 more source
Journal of Low Frequency Noise, Vibration and Active Control, 2021 When two electric multiple units are non-electrically connected together for improving the transport capacity in high-speed railways, double pantographs frequently operate simultaneously to decrease the current capacity on a single pantograph collector ...
Xiaobing Lu +5 more
doaj +1 more source
Analysis and Improvement of Pantograph Carbon Strip Abnormal Wear on Luoyang Metro Line 1
Chengshi guidao jiaotong yanjiuObjective During inspection, problems like the bad pantograph and catenary relation, pantograph-catenary arcing on the main line, burning points and serious wear on the pantograph carbon strip are detected since the trial operation of Luoyang Metro Line ...
WANG Liang, NIU Xiurong, LUO Min
doaj +1 more source
Active Selection Control Scheme for Dual Pantographs Based on TCMS
Chengshi guidao jiaotong yanjiu[Objective] Pantograph malfunctions can result in the loss of train traction capability, significantly impacting the normal operation of train. To address uneven carbon slide wear of two pantographs on the same vehicle of a train, a control scheme for ...
Yaxin YU, Xiaojie YU, Wencheng CUI
doaj +1 more source