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

Zhifeng Liu (Beijing University of Technology, Beijing, China)
Junyuan Guo (Beijing University of Technology, Beijing, China)
Yumo Wang (Beijing University of Technology, Beijing, China)
Dong Xiangmin (Chengde Petroleum College, Chengde, China)
Yue Wu (Beijing University of Technology, Beijing, China)
Zhijie Yan (Beijing University of Technology, Beijing, China)
Gong Jinlong (Beijing University of Technology, Beijing, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 16 August 2019

Issue publication date: 16 June 2020

Abstract

Purpose

This 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/approach

The 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.

Findings

When 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/value

The results demonstrate that the inclination or tilt of the turntable significantly affects the stability of the oil film.

Keywords

Acknowledgements

This work was supported by the National Science Foundation (grant no. 51575009) and the National Science and Technology Major Project of China (grant no. 2018ZX04032002) and Key Projects of the Science and Technology Research in Higher Education Institutions in Hebei Province (grant no. ZD2017203).

Citation

Liu, Z., Guo, J., Wang, Y., Xiangmin, D., Wu, Y., Yan, Z. and Jinlong, G. (2020), "Influence of rotational speed of a heavy-duty hydrostatic turret on bearing performance under tilt", Industrial Lubrication and Tribology, Vol. 72 No. 5, pp. 575-579. https://doi.org/10.1108/ILT-12-2018-0466

Publisher

:

Emerald Publishing Limited

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