ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The load capacity and stiffness of the aerostatic rectangular guideways, which applyannular orifice restrictor and porous restrictor respectively, were analyzed with finite differencemethod in this paper. A program for solving the pressure distribution, load capacity and stiffness isprogrammed with VB. The calculated results show that the rise of supply pressure is good forimproving the load capacity and stiffness of guideways. The decrease of the orifice diameter inannular orifice restriction and the permeability in porous restriction is advantageous to improve thestiffness of guideways, but both the corresponding bearing clearance and load capacity decrease. Inboth the annular restriction and porous restriction, the best film thickness which make the stiffnessmaximum exists under the definite supply pressure and parameter of the restrictor. Under the samesupply pressure, the load capacity and stiffness of porous restriction is higher than the orificerestriction. Meanwhile, the design and manufacture of porous restrictor is simple. The porousrestrictor is the perfect restrictor of aerostatic guideways
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.339.371.pdf
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