DocumentCode :
554214
Title :
Analysis of pendulum-structure influencing on guidance systm for high-speed Maglev train running on curve
Author :
Chunxia Zhao ; Longhua She ; Wensen Chang
Author_Institution :
Eng. Res. Center of Maglev, Nat. Univ. of Defense Technol., Changsha, China
Volume :
1
fYear :
2011
fDate :
12-14 Aug. 2011
Firstpage :
133
Lastpage :
137
Abstract :
For Analysis of curve-running performances and influencing factors of maglev guidance system. This paper is based on double bogies system and investigates influences of pendulum-structure when system running on the curve. Firstly, system structure and simplification conditions are described. Secondly, dynamics model of carriage and kinematics model of bogies have been set up. Thirdly, formulas of movement and pulling forces of pendulums have been deduced. Finally, system simulation has been realized by Matalab/simulink and acquired function curves of pendulums at different running speed. Moreover, according to curves of simulation and testing, influence of pendulums on guidance system has been analyzed and obtained regulation of guidance currents. Results indicate forces of pendulums acting on bogies are relative to running speed and railway parameters, composition of moments is a constant nearly 3KN.m on circular curve of radius 400m, which makes bogie I revolve clockwise and bogie II revolve anticlockwise, then guidance currents are compensated along diagonal of bogie for supplying electromagnetic forces. Change trend of currents by simulation analysis basically coincides with testing curves, and when running speed is overhigh and guidance currents are not increased in time, guidance gaps close to inner curve and at both ends of system will be decreased faster, which maybe cause collisions of guidance magnets and guideway and the positions are corresponding with testing phenomenon. The conclusions show that system model is reasonable and the results are valuable for betterment of guidance controller and curve negotiation capacity and analysis of the whole maglev train.
Keywords :
magnetic levitation; mechanical guides; pendulums; rails; railway engineering; railway rolling stock; vehicle dynamics; velocity; Matlab Simulink; bogies; carriage dynamics; carriage kinematics; electromagnetic forces; guidance currents; guidance magnets; guideway; high speed maglev train; maglev guidance system; pendulums; pulling forces; railway parameters; train curve running performances; Analytical models; Computational modeling; Force; Mathematical model; Rail transportation; Suspensions; Testing; curve runnining performances; dynamics and kinemics modeling; guidance system; malgev train; pendulum-strucure;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
Type :
conf
DOI :
10.1109/EMEIT.2011.6022880
Filename :
6022880
Link To Document :
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