Journal
OPTIK
Volume 127, Issue 8, Pages 3708-3712Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijleo.2016.01.006
Keywords
Bearing systems; Unbalance; Coupling faults; Nonlinear dynamics
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Funding
- National Natural Science Foundation of China [51179135]
- 12th Five-Year Science and Technology Support Project [2012BA08B03]
- water conservancy science and technology Innovation Project of Guangdong Province [2012-19]
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To solve the turbine generator set's fault, a nonlinear dynamics model of the imbalance misalignment-rubbing coupling fault is established. The dynamic behavior of the system with the rotor speed is also studied with numerical integration methods. The nonlinear dynamic response of generator rotor and turbine rotor at coupling fault is analyzed systematically by a series of methods, such as bifurcation diagrams, Poincare map, Orbit, time-domain waveform and amplitude spectrum. Combined with the experimental simulation on the experiment table, it is demonstrated that the system model can fit in current situation very well, which can be applied to the dispose analysis of the coupling fault. (C) 2016 Published by Elsevier GmbH.
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