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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12049
Title: On the restrictor design parameter of hybrid journal bearing for optimum rotordynamic coefficients
Authors: Kumar V.
Sharma, Satish Chandra
Jain S.C.
Published in: Tribology International
Abstract: The precise design of bearings can be formulated after carefully studying both static and dynamic characteristics of journal bearing. The present paper deals with the investigation of restrictor design parameter of a capillary compensated hole-entry hybrid journal bearing system for optimum stiffness and dynamic coefficients of the bearing. The bearing flexibility and variation of viscosity due to temperature rise of the lubrication has been considered in the study. The numerical solution of governing equations, i.e. Reynold's, energy, heat conduction, and elasticity equations has been obtained using finite element method. The study includes performance of a double row symmetric hole-entry hybrid journal bearing configuration containing 12 holes per row. The results presented herein indicate that change in viscosity of lubricant and bearing flexibility affects the bearing design parameter, so the stability of rigid rotor also gets affected. The results show that theoretical modeling of the bearing presented in this work will certainly prove to be effective tool for the selection of restrictor design parameter, CÌ„s2 for optimum stability parameters. © 2005 Elsevier Ltd. All rights reserved.
Citation: Tribology International (2006), 39(4): 356-368
URI: https://doi.org/10.1016/j.triboint.2005.03.015
http://repository.iitr.ac.in/handle/123456789/12049
Issue Date: 2006
Keywords: Damping coefficient
Hybrid journal bearing
Restrictor design parameter
ISSN: 0301679X
Author Scopus IDs: 57203774869
8142901100
23097893400
Author Affiliations: Kumar, V., Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India
Sharma, S.C., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee 247667, India
Jain, S.C., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee 247667, India
Corresponding Author: Kumar, V.; Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India; email: vkj_tiet@yahoo.com
Appears in Collections:Journal Publications [ME]

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