Current research on externally pressurized gas-lubricated bearings.
نویسندگان
چکیده
منابع مشابه
A study on the characteristics of externally pressurized air bearings
In this study the direct numerical method is applied to solve the perturbed Reynolds" equation. To solve it the perturbed dimensionless mass f low rate is used as the boundary condition under the inherently compensated restrictor. The dynamic characteristics of a rotor supported in the externally pressurized air bearings, such as stiffness and damping coefficients, are analyzed, and as a result...
متن کاملElastohydrodynamic Lubrication of Grease-Lubricated Rolling Bearings
. . l l l r Irr/~ricctrt~ .filttr rl~ickt~(,.s.s of grensr l~rbr ico~r~l , cyli~trdricol rol11,r 1lrr11.sl /)i~crrirrg.s rocts tnmsrt,z,[i, ztsing 11 c n p ( t c i l ( ~ ~ ~ c c ~ t y / ) ~ dl.$plrrcrttrrrrt prol)~,. For cott~,bnri.son, tllr . S N ~ ~ I I ~ to.sts 7110'1' (11.so per/i)rtt11~1 zoi/11 1/11> / ) t~(tr i t~g~s l~tbt-ic(tl(~i 7~1111 ~ I I ~ T I ( , I Y L / oi1.s. Till, , f i / t t~ ...
متن کاملShape optimization of pressurized air bearings
Use of externally pressurized air bearings allows for the design of mechanical systems requiring extreme precision in positioning. One application is the fine control for the positioning of mirrors in large-scale optical telescopes. Other examples come from applications in robotics and computer hard-drive manufacturing. Pressurized bearings maintain a finite separation between mechanical compon...
متن کاملEffect of Particulate Contamination in Grease-Lubricated Hybrid Rolling Bearings
Tlre preserrce oflrarrl corrtarnir~rrrIt.s in lubricated rolling bearing.~ is (I rrrrijor cr1~1.s~ of /~rel~rrrti~re failure, for exarnple by fatigue or I J ~ rrbr(r.sive rt~erlr of rolling el en rent.^, races or cages. However; tlre brtrotluctiorr of rtruclr Irorcler ceranzic (u.sually silicon nitride) balls or r01ler.s rurrrrirrg rlgnirzst steel races, in tlre lzybrid bearing concept, is like...
متن کاملThe accuracy of the compressible Reynolds equation for predicting the local pressure in gas-lubricated textured parallel slider bearings.
The validity of the compressible Reynolds equation to predict the local pressure in a gas-lubricated, textured parallel slider bearing is investigated. The local bearing pressure is numerically simulated using the Reynolds equation and the Navier-Stokes equations for different texture geometries and operating conditions. The respective results are compared and the simplifying assumptions inhere...
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ژورنال
عنوان ژورنال: JSME international journal
سال: 1987
ISSN: 0913-185X
DOI: 10.1299/jsme1987.30.1369