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.
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.
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.
The results demonstrate that the inclination or tilt of the turntable significantly affects the stability of the oil film.
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).
Liu, Z., Guo, J., Wang, Y., Xiangmin, D., Wu, Y., Yan, Z. and Jinlong, G. (2019), "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
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