Fluid-structure interaction on the dynamic characteristics of the hydrostatic spindle in micro-scale
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 4 October 2019
Issue publication date: 6 April 2020
Abstract
Purpose
The purpose of this paper is to investigate the effect of fluid–structure interaction in micro-scale on the performance of the hydrostatic spindle and improve the analysis precision of the dynamic performance of hydrostatic spindle.
Design/methodology/approach
Dynamic analysis of hydrostatic spindle before and after fluid–structure interaction is carried out according to stiffness and damping performance of the bearing, which demonstrates that the natural frequency and peak response of the spindle are increased in the micro-scale.
Findings
It is concluded from the simulation and experimental results that there is micro-scale effect in the actual operation of the spindle system and slippage exists in the oil film flow. The error between the modal detection result and the theoretical value is within 10 per cent, which also verifies the correctness of the above conclusions.
Originality/value
This paper analyzes the changes of the bearing performance parameters at macro- and micro-scale, which present the influence of the static and dynamic performance of the spindle in the micro-scale.
Keywords
Acknowledgements
This research was funded by the National Natural Science Foundation of China (Grant Numbers 51875005 and 51475010) and National Science and Technology Major Project of China (2016ZX04003001).
Data availability: Data in the paper are not related to other published data sets. This paper lists some relevant data of the method in the figures and tables, and other data are available from the corresponding author upon request.
Conflicts of interest: The authors declare that they have no conflicts of interest.
Citation
Chen, D., Zhao, Y., Zha, C. and Liu, J. (2020), "Fluid-structure interaction on the dynamic characteristics of the hydrostatic spindle in micro-scale", Industrial Lubrication and Tribology, Vol. 72 No. 3, pp. 397-403. https://doi.org/10.1108/ILT-07-2019-0261
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited