Special Issue "Fluid-Film Lubrication II"

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: closed (20 May 2019).

Special Issue Editor

Guest Editor
Dr. Romeo Glovnea

Department of Engineering and Design, School of Engineering and Informatics, University of Sussex, Brighton, UK
Website | E-Mail
Interests: lubrication; mechanical transmissions; rheology; solid-body mechanics; tribology

Special Issue Information

Dear Colleagues,

In a paper that famously set the foundation of the theoretical analysis of lubrication, Osbourne Reynolds stated: "The fact that a little grease will enable almost any surface to slide for a time has tended doubtless to obscure the action of the revolving journal to maintain the oil between the surfaces at the point of pressure.  And yet, although only now understood, it is this action that has alone rendered our machines and even our carriages possible." This is the essence of fluid-film lubrication; the lubricant is forced in a converging gap between two solid surfaces, generating enough pressure to support appreciable loads. This is by now well documented and practically exploited in sliding and rolling bearings, allowing for smooth and efficient operation of mechanisms and machines.

Phase one of this Special Issue on “Full Film Lubrication” was a great success thus; we have decided to launch volume two, with the same aims of publishing the latest research into the mechanisms of fluid-film lubrication, and lubricants in new experimental and modelling approaches to the behavior of such systems.

Dr. Romeo Glovnea
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Lubricants is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Fluid film
  • Lubrication
  • Lubricants
  • Bearing
  • Rolling Sliding
  • Experimental
  • Modelling
  • Materials

Published Papers (1 paper)

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Research

Open AccessArticle
A CFD-Based Frequency Response Method Applied in the Determination of Dynamic Coefficients of Hydrodynamic Bearings. Part 1: Theory
Received: 24 January 2019 / Revised: 5 March 2019 / Accepted: 6 March 2019 / Published: 11 March 2019
PDF Full-text (889 KB) | HTML Full-text | XML Full-text
Abstract
A general, CFD-based frequency response method for obtaining the dynamic coefficients of hydrodynamic bearings is presented. The method is grounded in experimental parameter identification methods and is verified for an extremely long, slider bearing geometry as well as short and long journal bearing [...] Read more.
A general, CFD-based frequency response method for obtaining the dynamic coefficients of hydrodynamic bearings is presented. The method is grounded in experimental parameter identification methods and is verified for an extremely long, slider bearing geometry as well as short and long journal bearing geometries. The influence of temporal inertia on the dynamic response of the bearings is discussed and quantified through the inclusion of added mass coefficients within the mechanical models of the hydrodynamic bearing films. Methods to separate the dynamic stiffness into static stiffness and added mass contributions are presented and their results compared. Harmonic perturbations are applied to the bearings at varying frequencies to determine the frequency dependence of the dynamic coefficients and to facilitate the decomposition of the dynamic stiffness into its constituents. Added mass effects are shown to be significant for the extremely long slider bearing geometry and negligible for the short and long journal bearing geometries under operating conditions motivated by those typical of marine bearings. Full article
(This article belongs to the Special Issue Fluid-Film Lubrication II)
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