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Influence of rotational speed of a heavy-duty hydrostatic turret on bearing performance under tilt

Influence of rotational speed of a heavy-duty hydrostatic turret on bearing performance under tilt PurposeThis paper aims to propose a method for finding the maximum rotational speed of an inclined turntable at which the stability of the bearing oil film is maintained.Design/methodology/approachThe finite difference method was used to solve the Reynolds equation. Variation of bearing capacity of a tilted hydrostatic turret over time was determined. The combined effect of tilt and rotational speed of the turret on the oil film stability was also analyzed.FindingsWhen the turntable is operated at low speeds with only small angle of tilt, stability of the oil film is maintained. At lower rotational speeds, a smaller angle of tilt improves the bearing capacity and ensures stability of the oil film. Whereas, higher rotational speeds can have a considerable influence on the bearing capacity.Originality/valueThe results demonstrate that the inclination or tilt of the turntable significantly affects the stability of the oil film. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

Influence of rotational speed of a heavy-duty hydrostatic turret on bearing performance under tilt

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0036-8792
DOI
10.1108/ILT-12-2018-0466
Publisher site
See Article on Publisher Site

Abstract

PurposeThis paper aims to propose a method for finding the maximum rotational speed of an inclined turntable at which the stability of the bearing oil film is maintained.Design/methodology/approachThe finite difference method was used to solve the Reynolds equation. Variation of bearing capacity of a tilted hydrostatic turret over time was determined. The combined effect of tilt and rotational speed of the turret on the oil film stability was also analyzed.FindingsWhen the turntable is operated at low speeds with only small angle of tilt, stability of the oil film is maintained. At lower rotational speeds, a smaller angle of tilt improves the bearing capacity and ensures stability of the oil film. Whereas, higher rotational speeds can have a considerable influence on the bearing capacity.Originality/valueThe results demonstrate that the inclination or tilt of the turntable significantly affects the stability of the oil film.

Journal

Industrial Lubrication and TribologyEmerald Publishing

Published: Aug 12, 2019

References