Lubrication and Wear Group: Oil-Whirl Characteristics of a Rigid Rotor in 360° Journal Bearings

Author:

Holmes R.1

Affiliation:

1. Senior Lecturer in Mechanical Engineering, Loughborough College of Technology.

Abstract

An insight into the mechanism of oil whirl is obtained by investigating theoretically and experimentally its two main characteristics, frequency and amplitude. It is shown that the ratio of steady oil-whirl vibrational frequency to shaft speed may be predicted qualitatively by a linear treatment and some conclusions of a nonlinear treatment are also given. It is also concluded that oil-whirl amplitude can be restricted by the oil supply pressure. Experiments involving the use of a rigid rotor supported on two fully lubricated 360° journal bearings are described and ratios of steady oil-whirl frequency to shaft speed as low as 0.37 reported.

Publisher

SAGE Publications

Subject

General Engineering

Cited by 19 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Dynamic study of viscoelastic rotor: Modal analysis of higher order model considering various asymmetries;Mechanism and Machine Theory;2017-03

2. A perspective on oil-whirl using two orthogonal coupled oscillators;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;2015-04-09

3. On the stabilising effect of gyroscopic moments in an automotive turbocharger;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;2012-02-21

4. Modal analysis of rotor-shaft system under the influence of rotor-shaft material damping and fluid film forces;Mechanism and Machine Theory;2012-02

5. Static and dynamic behaviour of a rigid rotor on journal bearings;Meccanica;1992-12

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