中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
Vol. 6 No. 1 March 1996 |
(Department of Mechanical Engineering,Central Sough University of Technology,Changsha 410083)
Abstract:A sudden increase of vibration amplitude with no forebodingoften results in an abruptbreakdown of a mechanical system. The catastrophe of vibration state of a faulty rotor is a typical non-linear phenomenon,and very difficult to be described and predicted with linear vibration theory. On thebasis of nonlinear vibration and catastrophe theory,the catastrophe of the vibration amplitude of the fauty rotor is described; a way to predict its emergence is developed.
Key words: mdchanical fault diagnosis and prediction cusp catastrophe model nonlinear vibration rotor