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An Investigation to Find the Effects on Air Foil Bearing by the Variation of Foil’s Structural Parameters

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Title An Investigation to Find the Effects on Air Foil Bearing by the Variation of Foil’s Structural Parameters
 
Creator Chakraborty, Bivash
Biswas, Nabarun
Chakraborti, Prasun
 
Subject Bump foil
Foil thickness
Minimum air film thickness
Top foil
Unit stiffness
 
Description 603-608
The newest advancement in the realm of bearing technology, Air Foil Bearings (AFB) is a marvel that allows for operation
at both incredibly low and high temperatures without fail. Their minimalistic design eliminates the requirement for lubrication
and sealing systems, making them not only more efficient but also more eco-friendly. When it comes to speed, these bearings
give no quarter - they can handle even the most extreme of conditions with ease. Air foil bearings rely on the structural design
of top and bump foils to support and distribute pressure in the air film. To increase bearing capacity, these foils must be thick
enough to withstand greater force. It is crucial to explore how varying foil thickness and bump height-pitch ratios may affect the
performance of an air foil bearing. The researchers at the ANSYS Fluent lab set out to understand the dynamics of air foil
bearings. By adjusting the thickness of the top and bump foils, they were able to observe how stress, stiffness, and air film
clearance changed in relation to each other. Their results showed that even minor changes in foil thickness, bump height, and
bump pitch had a significant impact on bearing performance. With their discoveries, these engineers have unlocked a new
understanding of this complex technology - one that will help guide its continued development into the future. The thickness of
the foil may not confer much strength, but it certainly does wonders for reducing stress and maintaining load-bearing
capabilities. Its suppleness, however, cannot be denied – a boon for air foil bearings.
 
Date 2023-06-06T10:44:42Z
2023-06-06T10:44:42Z
2023-06
 
Type Article
 
Identifier 0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/62013
https://doi.org/10.56042/jsir.v82i06.1780
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source JSIR Vol.82(06) [June 2023]