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Parametric resonances at subcritical speeds in discs with rotating frictional loads

Chan, S.N., Mottershead, J.E., and Cartmell, M.P. (1994) Parametric resonances at subcritical speeds in discs with rotating frictional loads. Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science, 208 (C6). pp. 417-425. ISSN 0954-4062 (doi:10.1243/PIME_PROC_1994_208_147_02)

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Abstract

This paper is concerned with the parametric resonances in a stationary classical annular disc when excited by a rotating mass–spring–damper system together with a frictional follower load. An analysis by the method of multiple scales is performed to reveal the existence of instabilities associated with subcritical parametric resonances, and other instabilities of the backward waves in modes with nodal diameters. The latter are shown to be driven by friction and not to be dependent upon the rotational speed. A state‐space analysis, with truncated modes, is used to investigate the effect of varying the friction, stiffness, mass and damping prameters in a series of simulated problems. The results obtained from the state‐space eigenvalue method tend to support the conclusions of the multiple scales

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cartmell, Prof Matthew
Authors: Chan, S.N., Mottershead, J.E., and Cartmell, M.P.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science
ISSN:0954-4062

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