Oil Film Thickness measurements in a Dynamically Loaded Journal Bearing—A Comparison of Measured and Calculated Minimum Oil Film Thickness with Newtonian Lubricating Oils

Tripp, H. A.; Berker, A. Nihat

doi:10.4271/881664

Cited by 3 publications

(1 citation statement)

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“…At each operating condition, measurements for a range of bearing loads are presented. This paper expands upon measurements presented in two previous papers ( I ) , (2) that have discussed the experimental apparatus arid have presented steady and dynamic load measurements for limited operating conditions. In these papers, the steady load measurements, taken at 209.4 radl s (2,000 rpm) with a limited range of viscosities, show excellent agreement with the Minimum Oil Film Thickness (MOFT) calculated using Ocvirk's short bearing equation (3).…”

Section: Introductionmentioning

confidence: 90%

Steady Load Eccentricity Measurements in a Two Axial Groove Journal Bearing

Tripp

Melodick

1991

Tribology Transactions

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A set-i~!.s rf sle(1clrly loorl eccentricity and c~ttitu(le angle measure-,ttro~/.s 11. ri . s been t~~k a n sing experimentnl journal bearing rig roil/, (1.63.58 ~L I~L dinmeter by 25.4 mm long test bearing. Operating cotrc1ition.s i?~cl~i(led shrgt .s/)ec& of 188.5 ant1377.0 radls (1800 crtlrl 3600 rptl) ~u i / l~ se71eml Newtonian oils (~n d (L wide range of 1ontl.s. T l~e ~ttcr~sulalt~enLs covered eccentricity mtios of 0.5 to 0.98 11:rr(1 Solt~itrerJelrl n1cn3elr of 1.0 to 0.013. 7 . l /re ?~L C ( L F I I~~C~N~T I / . S were .systemticnlly stuttered in the bearing clerrmrce circle. Annlysb ofthe meruuremen~s showed that althougli rliJI;!r~!~t,: .sfiee(ls (llld vLsco,sities resulted in sliglitly different eccentricity r(1tio ver.sz~s Sott~vierJelekl number curves, the Sommetfell ul~ltrber did (L good job rf itonnalizing tile merrsuremenls. However, /Ire ntlitrtrle n7rgle.s were not solely dependent 14on the eccenlricily rrrtio; /hcry rrlso vnried with s/~ee(l and visco.sity.

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Section: Introductionmentioning

confidence: 90%