NDLI: Nonlinear dynamic analysis of coupled gear-rotor-bearing system with the effect of internal and external excitations

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Chinese Journal of Mechanical Engineering : Volume 29, Issue 1, January 2016

Chinese Journal of Mechanical Engineering : Volume 28

Chinese Journal of Mechanical Engineering : Volume 27

Chinese Journal of Mechanical Engineering : Volume 26

Chinese Journal of Mechanical Engineering : Volume 25

Nonlinear dynamic analysis of coupled gear-rotor-bearing system with the effect of internal and external excitations

Content Provider	Springer Nature Link
Author	Zhou, Shihua Song, Guiqiu Ren, Zhaohui Wen, Bangchun
Copyright Year	2016
Abstract	Extensive studies on nonlinear dynamics of gear systems with internal excitation or external excitation respectively have been carried out. However, the nonlinear characteristics of gear systems under combined internal and external excitations are scarcely investigated. An eight-degree-of-freedom(8-DOF) nonlinear spur gear-rotor-bearing model, which contains backlash, transmission error, eccentricity, gravity and input/output torque, is established, and the coupled lateral-torsional vibration characteristics are studied. Based on the equations of motion, the coupled spur gear-rotor-bearing system(SGRBS) is investigated using the Runge-Kutta numerical method, and the effects of rotational speed, error fluctuation and load fluctuation on the dynamic responses are explored. The results show that a diverse range of nonlinear dynamic characteristics such as periodic motion, quasi-periodic motion, chaotic behaviors and impacts exhibited in the system are strongly attributed to the interaction between internal and external excitations. Significantly, the changing rotational speed could effectively control the vibration of the system. Vibration level increases with the increasing error fluctuation. Whereas the load fluctuation has an influence on the nonlinear dynamic characteristics and the increasing excitation force amplitude makes the vibration amplitude increase, the chaotic motion may be restricted. The proposed model and numerical results can be used for diagnosis of faults and vibration control of practical SGRBS.
Starting Page	281
Ending Page	292
Page Count	12
File Format	PDF
ISSN	10009345
Journal	Chinese Journal of Mechanical Engineering
Volume Number	29
Issue Number	2
e-ISSN	21928258
Language	English
Publisher	Chinese Mechanical Engineering Society
Publisher Date	2015-12-29
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	spur gear-rotor-bearing system(SGRBS) backlash eccentricity internal and external excitations coupled lateral-torsional vibration Mechanical Engineering Theoretical and Applied Mechanics Manufacturing, Machines, Tools Engineering Thermodynamics, Heat and Mass Transfer Power Electronics, Electrical Machines and Networks Electronics and Microelectronics, Instrumentation
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Mechanical Engineering

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