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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12356
Title: Stability analysis of a rigid rotor supported by two-lobe hydrodynamic journal bearings operating with a non-Newtonian lubricant
Authors: Yadav S.K.
Rajput A.K.
Ram N.
Sharma, Satish Chandra
Published in: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Abstract: In the present work, an investigation has been performed on a rigid rotor supported by two-lobe journal bearings operating with a non-Newtonian lubricant. The governing Reynolds equation for pressure field is solved by using non-linear finite element method. Further to study the dynamic stability of the bearing system, governing equation of motion for the rotor position is solved by fourth order Runge–Kutta method. Bifurcation and Poincaré maps of two-lobe bearings are presented for different values of the non-Newtonian parameter and bearing ellipticity ratio. The numerical results illustrate that the ellipticity of a bearing with a dilatant lubricant improve the stability of the rotordynamic system. © IMechE 2018.
Citation: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology (2019), 233(6): 884-898
URI: https://doi.org/10.1177/1350650118806377
http://repository.iitr.ac.in/handle/123456789/12356
Issue Date: 2019
Publisher: SAGE Publications Ltd
Keywords: bifurcation diagram
non-Newtonian lubricant
offset ratio
Rotordynamic stability
vibration
ISSN: 13506501
Author Scopus IDs: 55499773200
55366858600
46061314700
8142901100
Author Affiliations: Yadav, S.K., Department of Mechanical Engineering, Institute of Infrastructure, Technology, Research and Management (IITRAM)Gujarat, India
Rajput, A.K., Department of Mechanical Engineering, Shiv Nadar University, Greater Noida, India
Ram, N., Department of Mechanical and Automation Engineering, IGDTUW, New Delhi, India
Sharma, S.C., Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorkee, India
Corresponding Author: Yadav, S.K.; Department of Mechanical Engineering, Institute of Infrastructure, Technology, Research and Management (IITRAM)India; email: saurabhme.iitr@gmail.com
Appears in Collections:Journal Publications [ME]

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