An Approach to Improve on Stiffness for Aerostatics Bearing

Anh Van Ha Nguyen; Thien Ngon Dang

doi:10.4028/www.scientific.net/AMM.889.448

Paper Titles

A Research on Locating AGV via RSS Signals
p.418

Numerical Investigations of Aerodynamics Characteristics of Main Rotors in Helicopter UAV Used for Pesticide Spraying in Agriculture
p.425

Effect of Shapes and Turbulent Inlet Flow to Vortices on Delta Wings
p.434

Research to Evaluate the Quality of Passenger Bus Body Frame, Assuring the Passive Safety in the Design Process
p.440

An Approach to Improve on Stiffness for Aerostatics Bearing
p.448

Optimal Selection of Marine Propellers Based on Wageningen B-Series
p.455

Finite Element Analysis in Automobile Chassis Design
p.461

Machining Based Geometric Error Estimation Method for 3-Axis CNC Machine
p.469

A Methodology for Generating a Variable-Pitch Rotor of Twin-Screw Vacuum Pump
p.475

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 889An Approach to Improve on Stiffness for...

An Approach to Improve on Stiffness for Aerostatics Bearing

Abstract:

The pocketed orifice structure for the air-nozzles of an aerostatic bearing is usually a particular pocketed orifice. This structure can not help the shaft to reach high stiffness in working process, so the applicability of the aerostatic bearing in machines with large centrifugal or horizontal force is not focused. A common pocketed orifice structure for the air-nozzles of the aerostatic bearing to meet the demand of high stiffness of the journal shaft has been developed.. Experimental results show that the stiffness of the aerostatic bearing increases, the eccentricity is only about 0.03 mm at a pressure of 2 to 2.5 bar compared to the structure of particular pocketed orifice. Besides operating at high pressure, a common pocketed orifice structure does not suffer from air congestion (blockage) as in a particular pocketed orifice structure. This results in reducing vibration and avoiding damage inside the aerostatic bearing.

You might also be interested in these eBooks

Material, Machines and Methods for Sustainable Development

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 889)

Pages:

448-454

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.889.448

Citation:

Cite this paper

Online since:

March 2019

Authors:

Anh Van Ha Nguyen, Thien Ngon Dang

Keywords:

Aerostatic Bearing, Air Pressure, Eccentricity, Pocketed Orifice, Stiffness

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] Powell J. W., The Design of Aerostatic Bearing, Machinery Publishing Co. Ltd., Nov. (1970).

Google Scholar

[2] Yantang Li, Han Ding, Influences of the geometrical parameters of aerostatic thrust bearing with pocketed orifice type restrictor on its performance, Tribology International 40, (2007).

DOI: 10.1016/j.triboint.2006.11.001

Google Scholar

[3] Y. S. Chen, C. C. Chiu, Y. D. Cheng, Influences of operational conditions and geometric parameters on the stiffness of aerostatic journal bearings, Precision Engineering, Volume 34, Issue 4, October 2010, pp.722-734.

DOI: 10.1016/j.precisioneng.2010.04.001

Google Scholar

[4] Uichiro Nishio, KeiSomaya, ShigekaYoshimoto, Numerical calculation and experimental verification of static and dynamic characteristics of Aerostatic thrust bearings with small feedholes, Tribology International, Volume 44, Issue 12, November 2011, pp.1790-1795.

DOI: 10.1016/j.triboint.2011.07.004

Google Scholar

[5] Rowe W. B., Hydrostatic, Aerostatic and Hybrid Bearing Design, 1st Edition, Butterworth-Heinemann, (2012).

Google Scholar