A new thermal management method for reducing thermoelastic growth of an air foil bearing-Reference-Cited by-同舟云学术

A new thermal management method for reducing thermoelastic growth of an air foil bearing

Published:2024-06-06 Issue: Volume: Page:
ISSN:1350-6501
Container-title:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

Author:

Samanta Pranab¹^ORCID,Murmu Naresh C¹^ORCID,Khonsari Michael M²

Affiliation:

1. Electric Mobility and Tribology Research Group, CSIR-Central Mechanical Engineering Research Institute, Durgapur, West Bengal, India

2. Department of Mechanical and Industrial Engineering, LSU, Baton Rouge, LA, USA

Abstract

Foil bearings are considered to be an excellent fit for a range of high-temperature applications. However, they are susceptible to collapse as a result of thermoelastic instability (TEI). This study introduces a novel approach to enhance passive cooling by adding fins to the surface of the hollow journal cylinder. The effect of enhanced heat transport on the thermoelastic evolution of the bearing surface is thoroughly explored. Furthermore, the critical speed of a foil bearing is derived after taking into account the effect of fins. This affordable method enables the designer to increase the threshold speed of TEI and guard against foil-bearing failure.

Publisher

SAGE Publications

Link

https://journals.sagepub.com/doi/pdf/10.1177/13506501241258284

Reference37 articles.

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2. The evolution of foil bearing technology

3. On the thermoelastic instability of foil bearings

4. Hydrodynamic Analysis of Compliant Foil Bearings With Compressible Air Flow