doi: 10.3850/978-981-11-0749-8_698
Analytical Study on New Type of Porous Aerostatic Bearing
Kun-Min Huang1, Hsin-Chung Li1, Yen-Ting Chen1, Ming-Fei Chen2, Chin-Chia Liu2, Kuo-Yu Chien1, Chuang-Chin Yang2 and Kuan-Wei Huang2
1Mold & Precision Machining Technology Section Metal Industries Research & Development Centre
2National Changhua University of Education
Abstract
With regard to the development of micromachining equipment, aerostatic bearings have become a key technical option to be used in a micromachining equipment in order to meet the high precision requirements in the industry. In addition, the technique of porous throttle showing the merits of high loading capacity, rigidity and stability can be utilized in order to allow miniaturized components to exhibit the properties of excellent rigidity and precision.
The objective of this paper is to study the static characteristics of a new type of porous aerostatic bearing. In the content of this paper, the structure and working principles of the porous aerostatic bearing are introduced, mathematic models and boundary conditions are established and characteristics graphs showing the relationships between the loading capacities and apertures of such new type of porous aerostatic bearing are analyzed. Finally, the results obtained therefrom are further analyzed and compared with the ones of the reference documents in order to verify the properness of the theory of this study.
Keywords: Porous throttle, Aerostatic, Finite differential method, Orifice throttle.
