Effect of spring non-linearity on dynamic stability of a controlled maglev vehicle and its guideway system

被引：24
|
作者：
Xiao, JZ [1 ]
Jian, JW [1 ]
Zhou, YH [1 ]
机构：
[1] Lanzhou Univ, Dept Mech, Lanzhou 730000, Gansu, Peoples R China
来源：
JOURNAL OF SOUND AND VIBRATION | 2005年 / 279卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/j.jsv.2003.10.025
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The non-linear effect of a spring on the dynamic characteristics of a magnetically levitated (or maglev) vehicle and its guideway system is numerically studied in this paper. A simplified theoretical model of a maglev vehicle with heavy and forward motions on flexible guideways is suggested to study the coupling among the motions of vehicle, the vibration of guideways, and the control system of the electromagnetic suspension. The stable regions and/or the attracting regions of the attractor of the controlled system either with a non-linear spring or with a linear spring are obtained. It is found that the stable region is strongly dependent upon the non-linear terms of the spring, the forward velocity of the vehicle, and the control parameters. Finally, the chaotic response of the system with a non-linear spring is presented. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：201 / 215
页数：15
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