An active non-contact journal bearing with bi-directional driving capability utilizing coupled resonant mode

Ping Guo; Han Gao

doi:10.1016/j.cirp.2018.03.008

An active non-contact journal bearing with bi-directional driving capability utilizing coupled resonant mode

Ping Guo^*, Han Gao

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Non-contact journal bearings are conventionally based on pressurized air or magnetic levitation. This paper reports on a new design of an active non-contact journal bearing with bi-direction driving capabilities. It combines the functions of an axis positioner, non-contact journal bearing, and rotary motor utilizing coupled vibration modes. The shaft levitation is achieved by creating a stable air film using near-field acoustic force; while the non-contact rotation is realized by controlling the pressure distribution within the air film using coupled resonant mode. The essential design methodology and theoretical principles are presented along with the performance evaluation of the functional prototypes.

Original language	English (US)
Pages (from-to)	405-408
Number of pages	4
Journal	CIRP Annals
Volume	67
Issue number	1
DOIs	https://doi.org/10.1016/j.cirp.2018.03.008
State	Published - Jan 1 2018

Keywords

Acoustic levitation
Bearing
Ultrasonic

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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title = "An active non-contact journal bearing with bi-directional driving capability utilizing coupled resonant mode",

abstract = "Non-contact journal bearings are conventionally based on pressurized air or magnetic levitation. This paper reports on a new design of an active non-contact journal bearing with bi-direction driving capabilities. It combines the functions of an axis positioner, non-contact journal bearing, and rotary motor utilizing coupled vibration modes. The shaft levitation is achieved by creating a stable air film using near-field acoustic force; while the non-contact rotation is realized by controlling the pressure distribution within the air film using coupled resonant mode. The essential design methodology and theoretical principles are presented along with the performance evaluation of the functional prototypes.",

keywords = "Acoustic levitation, Bearing, Ultrasonic",

author = "Ping Guo and Han Gao",

note = "Funding Information: This work has been supported by the Shun Hing Institute of Advanced Engineering, CUHK, #RNE-p4-17; and the Research Grants Council of Hong Kong, #ECS 24201816. The authors would like to thank Mr. Derik Epperson for his constructive comments. Funding Information: This work has been supported by the Shun Hing Institute of Advanced Engineering , CUHK, #RNE-p4-17; and the Research Grants Council of Hong Kong , #ECS 24201816. The authors would like to thank Mr. Derik Epperson for his constructive comments.",

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doi = "10.1016/j.cirp.2018.03.008",

language = "English (US)",

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AU - Guo, Ping

AU - Gao, Han

N1 - Funding Information: This work has been supported by the Shun Hing Institute of Advanced Engineering, CUHK, #RNE-p4-17; and the Research Grants Council of Hong Kong, #ECS 24201816. The authors would like to thank Mr. Derik Epperson for his constructive comments. Funding Information: This work has been supported by the Shun Hing Institute of Advanced Engineering , CUHK, #RNE-p4-17; and the Research Grants Council of Hong Kong , #ECS 24201816. The authors would like to thank Mr. Derik Epperson for his constructive comments.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Non-contact journal bearings are conventionally based on pressurized air or magnetic levitation. This paper reports on a new design of an active non-contact journal bearing with bi-direction driving capabilities. It combines the functions of an axis positioner, non-contact journal bearing, and rotary motor utilizing coupled vibration modes. The shaft levitation is achieved by creating a stable air film using near-field acoustic force; while the non-contact rotation is realized by controlling the pressure distribution within the air film using coupled resonant mode. The essential design methodology and theoretical principles are presented along with the performance evaluation of the functional prototypes.

AB - Non-contact journal bearings are conventionally based on pressurized air or magnetic levitation. This paper reports on a new design of an active non-contact journal bearing with bi-direction driving capabilities. It combines the functions of an axis positioner, non-contact journal bearing, and rotary motor utilizing coupled vibration modes. The shaft levitation is achieved by creating a stable air film using near-field acoustic force; while the non-contact rotation is realized by controlling the pressure distribution within the air film using coupled resonant mode. The essential design methodology and theoretical principles are presented along with the performance evaluation of the functional prototypes.

KW - Acoustic levitation

KW - Bearing

KW - Ultrasonic

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JO - CIRP Annals - Manufacturing Technology

JF - CIRP Annals - Manufacturing Technology

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IS - 1

ER -

An active non-contact journal bearing with bi-directional driving capability utilizing coupled resonant mode

Abstract

Keywords

ASJC Scopus subject areas

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