NDLI: Near-field acoustic levitation and applications to bearings: a critical review

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Near-field acoustic levitation and applications to bearings: a critical review

Content Provider	Scilit
Author	Shi, Minghui Feng, Kai Hu, Junhui Zhu, Jiang Cui, Hailong
Copyright Year	2019
Description	Journal: International Journal of Extreme Manufacturing The importance to industry of non-contact bearings is growing rapidly as the demand for high-speed and high-precision manufacturing equipment increases. As a recently developed non-contact technology, near-field acoustic levitation (NFAL) has drawn much attention for the advantages it offers, including no requirement for an external pressurized air supply, its compact structure, and its ability to adapt to its environment. In this paper, the working mechanism of NFAL is introduced in detail and compared to all existing non-contact technologies to demonstrate its versatility and potential for practical applications in industry. The fundamental theory of NFAL, including gas film lubrication theory and acoustic radiation pressure theory is presented. Then, the current state-of-the-art of the design and development of squeeze film air bearings based on NFAL is reviewed. Finally, future trends and obstacles to more widespread use are discussed.
Related Links	https://iopscience.iop.org/article/10.1088/2631-7990/ab3e54/pdf
ISSN	26318644
e-ISSN	26317990
DOI	10.1088/2631-7990/ab3e54
Journal	International Journal of Extreme Manufacturing
Issue Number	3
Volume Number	1
Language	English
Publisher	IOP Publishing
Publisher Date	2019-09-02
Access Restriction	Open
Subject Keyword	Journal: International Journal of Extreme Manufacturing Manufacturing Engineering Acoustic Levitation High Speed Field Acoustic
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering

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