Author
Arvind K. Rajput
Other affiliations: Indian Institute of Technology Roorkee
Bio: Arvind K. Rajput is an academic researcher from Shiv Nadar University. The author has contributed to research in topics: Bearing (mechanical) & Reynolds equation. The author has an hindex of 7, co-authored 10 publications receiving 120 citations. Previous affiliations of Arvind K. Rajput include Indian Institute of Technology Roorkee.
Papers
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TL;DR: In this paper, the effect of geometric imperfections of journal on the performance of micropolar lubricated 4-pocket hybrid journal bearing was theoretically described and numerically simulated results were presented for different forms of geometric irregularities of journal such as barrel shape, bellmouth shape, circumferential undulations along with the ideal shape for both the Newtonian and micropolic lubricant.
29 citations
TL;DR: In this article, the effect of misalignment of journal in conjunction with geometric imperfections of journal on the performance of four pocket hybrid journal bearing system has been investigated and the numerically simulated results indicate that the performance gets significantly deteriorated due to the geometric imperfection and mis alignment of journal.
25 citations
TL;DR: In this paper, a theoretical analysis of a 4 pocket capillary compensated conical hybrid journal bearing system operating with micropolar lubricant has been carried out for different values of micropolastic parameters, that is, characteristic length and coupling number.
Abstract: The present paper deals with a theoretical analysis of 4-pocket capillary compensated conical hybrid journal bearing system operating with micropolar lubricant. The modified Reynolds equation for a conical journal bearing system operating with micropolar lubricant has been derived. In the present study, Eringen's micropolar theory has been used to model micropolar lubrication in cylindrical coordinate system. The study has been carried out for the different values of micropolar parameters, that is, characteristic length () and coupling number (). The conical bearing configurations having semicone angle 10∘, 20∘, 30∘, and 40∘ have been studied. The study suggests that micropolar lubricant offers better performance vis- a-vis Newtonian lubricant for bearing configurations having values of semicone angle 10∘and 20∘.
20 citations
03 Jan 2013
TL;DR: In this article, the influence of micropolar lubricant on a four-pocket conical hybrid journal bearing system compensated with a membrane restrictor was analyzed using an analytical study.
Abstract: This article describes an analytical study to demonstrate the influence of micropolar lubricant on a four-pocket conical hybrid journal bearing system compensated with membrane restrictor. The modi...
18 citations
TL;DR: In this article, the influence of geometric irregularities on the performance of membrane compensated four pocket journal bearing under misaligned conditions is examined and the unknown fluid film pressure field in governing Reynolds equation is obtained by FE analysis using Gallerkin's technique.
14 citations
Cited by
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TL;DR: In this article, the influence of the dimple geometry on hybrid thrust pad bearing and non-Newtonian lubricant was investigated using Finite Element Method (FEEM) and the results indicated that the values of load carrying capacity, frictional power loss, maximum pressure and fluid film stiffness coefficient are significantly affected by the behavior of lubricant.
55 citations
TL;DR: In this paper, the performance of a rotor system supported by externally pressurized air bearing was investigated and the effect of angular misalignment to the pressure distribution in the air bearing is obtained.
41 citations
TL;DR: In this article, the influence of the tilt and recess shape on the static and dynamic performance characteristics of the hydrostatic thrust pad bearing system having Rabinowitsch fluid model lubricant was numerically analyzed.
35 citations
TL;DR: In this article, the influence of journal misalignment on the static and dynamic performance of aerostatic journal bearings has been analyzed and an effective numerical approach was proposed to solve the unsteady Reynolds equation.
29 citations
TL;DR: In this article, the effect of misalignment of journal in conjunction with geometric imperfections of journal on the performance of four pocket hybrid journal bearing system has been investigated and the numerically simulated results indicate that the performance gets significantly deteriorated due to the geometric imperfection and mis alignment of journal.
25 citations