An active control for hydrostatic journal bearing using optimization algorithms
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 25 January 2021
Issue publication date: 4 March 2021
Abstract
Purpose
The purpose of this paper is to improve static/dynamic characteristics of active-controlled hydrostatic journal bearing by using fractional order control techniques and optimizing algorithms.
Design/methodology/approach
Active lubrication has ability to overcome the unpredictable harsh environmental conditions which often lead to failure of capillary controlled traditional hydrostatic journal bearing. The research develops a mathematical model for a servo feedback-controlled hydrostatic journal bearing and dynamics of model is analyzed with different control techniques. The fractional-order PID control system is tuned by using particle swarm optimization and Nelder mead optimization techniques with the help of using multi-objective performance criteria.
Findings
The results of the current research are compared with previously published theoretical and experimental results. The proposed servo-controlled active bearing system is studied under a number of different dynamic situations and constraints of variable spindle speed, external load, temperature changes (viscosity) and variable bearing clearance (oil film thickness). The simulation results show that the proposed system has better performance in terms of controllability, faster response, stability, high stiffness and strong resistance.
Originality/value
This paper develops an accurate mathematical model for servo-controlled hydrostatic bearing with fractional order controller. The results are in excellent agreement with previously published literature.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-07-2020-0272
Keywords
Acknowledgements
Funding: The author is very thankful to Beijing university of Technology and Chinese government for supporting research work. The National Key Research and Development Program of China Project number 2017YFC0805005-1. The Natural Science and Foundation of China Project number 51075008. The Science and Technology Program of Beijing Municipal Education Commission Project number KZ201810005009.
Citation
Ur Rehman, W., Wang, X., Chen, Y., Yang, X., Ullah, Z., Cheng, Y. and Kanwal, M. (2021), "An active control for hydrostatic journal bearing using optimization algorithms", Industrial Lubrication and Tribology, Vol. 73 No. 2, pp. 316-324. https://doi.org/10.1108/ILT-07-2020-0272
Publisher
:Emerald Publishing Limited
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