减少气箔轴承热弹性增长的新型热管理方法

IF 18 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-06-06 DOI:10.1177/13506501241258284

P. Samanta, N. C. Murmu, M. Khonsari

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引用次数: 0

摘要

箔轴承被认为是一系列高温应用的理想选择。然而，由于热弹性不稳定性（TEI），它们很容易坍塌。本研究引入了一种新方法，通过在空心轴颈圆柱体表面添加翅片来增强被动冷却。研究深入探讨了增强热传输对轴承表面热弹性演变的影响。此外，在考虑了翅片的影响后，还得出了箔轴承的临界转速。这种经济实惠的方法使设计人员能够提高 TEI 的临界转速，防止箔式轴承失效。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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