|Table of Contents|

Small-scale similarity model of maglev-guideway coupling vibration(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2014年01期
Page:
49-56
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Small-scale similarity model of maglev-guideway coupling vibration
Author(s):
WANG Hui;  SHEN Gang
Institute of Railway and Urban Mass Transit, Tongji University, Shanghai 201804, China
Keywords:
vehicle engineering;  maglev train;  maglev-guideway coupling vibration;  similarity theory;  feedback control;  small-scale model
PACS:
U270.11
DOI:
-
Abstract:
Simplified as a model composed of single magnet and Bernoulli-Euler beam, the maglev-guideway coupling vibration system with 5-state-variable feedback controller was designed to study the dynamics performances of the system in the time and frequency domain. A small-scale model of single magnet-guideway coupling vibration system was established based on the similarity theory, its similarity performances were studied, and the similarity relationship of the dynamics systems was analyzed. Study result shows that the maglev control method, calculating the controller output with the vibration informations of guideway's low order mode and magnet, is effective and can keep the system stable. The step response of the system indicates that the developed controller can stabilize the system in 0.27 s with the overshot 2%. The first 3 order modes can be used to accurately describe the dynamics characteristics of coupling vibration system. For analyzing the lower frequency characteristics of the system, the first 1 order mode is sufficient when the large difference among the lower frequencies exists. The small-scale model obtained according to the similarity theory is coincident with the original model in the dynamics performances. 3 tabs, 15 figs, 15 refs.

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Last Update: 2014-03-20