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http://bura.brunel.ac.uk/handle/2438/26300| Title: | The Stability of Spiral-Grooved Air Journal Bearings in Ultrahigh Speeds |
| Authors: | Song, L Yuan, G Zhang, H Ding, Y Cheng, K |
| Keywords: | spiral-grooved hybrid air journal bearings;stability of the air bearing;critical speed;high-speed condition;dynamic performance experiments |
| Issue Date: | 25-Feb-2022 |
| Publisher: | MDPI |
| Citation: | Song, L. et al. (2022) 'The Stability of Spiral-Grooved Air Journal Bearings in Ultrahigh Speeds', Materials, 15 (5), 1759, pp. 1 - 16. doi: 10.3390/ma15051759. |
| Abstract: | Copyright © 2022 by the authors. The spiral-grooved structure has been proposed for promoting the load capacity and stiffness of hybrid air journal bearings. In this paper, the dynamic characteristics of spiral-grooved hybrid bearings are first calculated. The stability criteria of the bearings are proposed and analyzed with different groove structure parameters using frequency domain analysis. It is found that the length of the spiral-groove has significant influence on the stability of the spindle system. Finally, the critical speed of the spiral-grooved hybrid bearing and rotor system is analyzed, and an experiment is carried out to validate the proposed model, finding that groove structure can promote the stability of the air bearing systems. |
| Description: | Data Availability Statement: Not applicable. |
| URI: | https://bura.brunel.ac.uk/handle/2438/26300 |
| DOI: | https://doi.org/10.3390/ma15051759 |
| Other Identifiers: | ORCID iD: Kai Cheng https://orcid.org/0000-0001-6872-9736 1759 |
| Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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| FullText.pdf | Copyright © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | 5.06 MB | Adobe PDF | View/Open |
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