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Stability analysis of double porous and surface porous layer journal bearing

Rao, T.V.V.L.N. and Rani, A.M.A. and Awang, M. and Nagarajan, T. and Hashim, F.M. (2016) Stability analysis of double porous and surface porous layer journal bearing. Tribology - Materials, Surfaces and Interfaces, 10 (1). pp. 19-25.

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

The linear stability analysis of double porous and surface porous layer journal bearing based on long and short bearing approximations is presented. The Brinkman model is employed in the porous region and the infinite permeability porous layer is simulated as surface layer. The coefficients of load, threshold speed and critical whirl frequency ratio are computed for double porous and surface porous layer configurations. The coefficients obtained using long and short bearing approximations yield same results. Higher threshold speed is obtained for double layer configurations of (i) high permeability bearing adsorbent porous layer topped with low permeability porous layer, and (ii) surface porous layer lubricant film. © 2016 Taylor & Francis.

Item Type:Article
Impact Factor:cited By 10
Uncontrolled Keywords:Journal bearings, Brinkman models; Dynamic coefficient; High permeability; Low permeability; Short bearing approximation; Stability analysis; Stability thresholds; Whirl frequency ratios, Linear stability analysis
ID Code:25543
Deposited By: Ms Sharifah Fahimah Saiyed Yeop
Deposited On:27 Aug 2021 09:58
Last Modified:27 Aug 2021 09:58

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