Dynamic Behavior Analysis of Three-Span Rotor-Bearing System with Rub-Impact Fault

Abstract:

The dynamic model of the three-span rotor-bearing system with rub-impact fault was set up. The influence to nonlinear dynamics behaviors of the rotor-bearing system that induced by rub-impact of one disc, two discs and three discs were numerically studied. The main influence of the rotor system response by the rub-impact faults are in the supercritical rotate speed. There are mutations of amplitudes in the responses of second and third spans in supercritical rotate speed when rub-impact with one disc, and there are chaotic windows in the response of first span, and jumping changes in second and third spans when rub-impact with two or three discs.

• Periodical: Advanced Materials Research (Volume 460)
• Pages: 160-164
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.460.160
• Online since: February 2012
• Authors: Song He Zhang, Yuegang Luo, Bin Wu, Bang Chun Wen
• Keywords: Chaos, Dynamic Behavior, Rub-Impact Fault, Three-Span Rotor-Bearing System

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