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Influence of periodic excitation on self-sustained vibrations of one disk rotors in arbitrary length journals bearings |
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| Institution: | 1. A.N. Podgorny Institute for Mechanical Engineering Problems, National Academy of Sciences of Ukraine, 2/10 Dm. Pozharskoho St., 61046 Kharkiv, Ukraine;2. 377 H Administration Building, MC-348, 506 South Wright Street, Urbana, IL 61801, USA;1. Department of Architecture, Chulalongkorn University, Bangkok 10330, Thailand;2. Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia |
| Abstract: | Interaction of forced and self-sustained vibrations of one disk rotor is described by nonlinear finite-degree-of-freedom dynamical system. The shaft of the rotor is supported by two journal bearings. The combination of the shooting technique and the continuation algorithm is used to study the rotor periodic vibrations. The Floquet multipliers are calculated to analyze periodic vibrations stability. The results of periodic motions analysis are shown on the frequency response. The quasi-periodic motions are investigated. These nonlinear vibrations coexist with the periodic forced vibrations. |
| Keywords: | Asymmetrical one disk rotor Interaction of forced and self-sustained vibrations Quasi-periodic motions Poincare sections |
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