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Dynamic Characteristics and Experimental Research of Dual-Rotor System with Rub-Impact Fault
Joint Authors
Jiang, D. X.
Wang, N. F.
Xu, Hongzhi
Han, Te
Li, Dewang
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-29
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Rub-impact fault model for dual-rotor system was further developed, in which rubbing board is regarded as elastic sheet.
Sheet elastic deformation, contact penetration, and elastic damping support during rubbing of sheet and wheel disk were considered.
Collision force and friction were calculated by utilizing Hertz contact theory and Coulomb model and introducing nonlinear spring damping model and friction coefficient.
Then kinetic differential equations of rub-impact under dry rubbing condition were established.
Based on one-dimensional finite element model of dual-rotor system, dynamic transient response of overall structure under rub-impact existing between rotor wheel and sheet was obtained.
Meanwhile, fault dynamic characteristics and impact of rubbing clearance on rotor vibration were analyzed.
The results show that, during the process of rub-impact, the spectrums of rotor vibration are complicated and multiple combined frequency components of inner and outer rotor fundamental frequencies are typical characteristic of rub-impact fault for dual-rotor system.
It also can be seen from rotor vibration response that the rubbing rotor’s fundamental frequency is modulated by normal rotor double frequency.
American Psychological Association (APA)
Xu, Hongzhi& Wang, N. F.& Jiang, D. X.& Han, Te& Li, Dewang. 2016. Dynamic Characteristics and Experimental Research of Dual-Rotor System with Rub-Impact Fault. Shock and Vibration،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1119459
Modern Language Association (MLA)
Xu, Hongzhi…[et al.]. Dynamic Characteristics and Experimental Research of Dual-Rotor System with Rub-Impact Fault. Shock and Vibration No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1119459
American Medical Association (AMA)
Xu, Hongzhi& Wang, N. F.& Jiang, D. X.& Han, Te& Li, Dewang. Dynamic Characteristics and Experimental Research of Dual-Rotor System with Rub-Impact Fault. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1119459
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119459