The fractional dimension identification method of critical bifurcated parameters of bearing-rotor system

Citation
Yc. Zhao et al., The fractional dimension identification method of critical bifurcated parameters of bearing-rotor system, APP MATH ME, 21(2), 2000, pp. 141-146
Citations number
11
Categorie Soggetti
Mechanical Engineering
Journal title
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
ISSN journal
02534827 → ACNP
Volume
21
Issue
2
Year of publication
2000
Pages
141 - 146
Database
ISI
SICI code
0253-4827(200002)21:2<141:TFDIMO>2.0.ZU;2-5
Abstract
The stable problem of rotor system, seen in many fields, has been cared for more. Nowadays the reasons of most losing stability are caused by nonlinea r behaviors This presents higher requirements to the designing of motor sys tem : considering nonlinear elements, avoiding the unstable parameter point s or regions where nonlinear phenomena will be presented. If a family of ti me series of the unknown nonlinear dynamical system cart only be got ( may be polluted by noise), how to identify the change of motive properties at d ifferent parameters? In this paper, through the study of Jeffcott rotor sys tem, the result that using the figures between the fractional dimension of rime-serial and parameter can be gained, and the critical bifurcated parame ters of bearing-rotor dynamical system can be identified.