Experimental investigation of surface temperature in rolling-sliding contacts

Experimental investigation of surface temperature in rolling-sliding contacts

1,ITEKATURE ANT) CURRENT EVE&T’; 408 power, where y1is the Meyer strain-hardening coefficient. Experimental Investigation of Surface Temperature in ...

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1,ITEKATURE ANT) CURRENT EVE&T’;

408

power, where y1is the Meyer strain-hardening coefficient. Experimental Investigation of Surface Temperature in Rolling-Sliding Contacts. F. K. Orcutt, (Mechanical Technology, Inc.) ; K 63-13750, Sci. and Tech. Aerospace Repts., I (8) (1963) 526; 2~ pp., ro refs. .A study was made of surface temperature in rolling-sliding contacts using elastohydrodynamic lubrication in an effort to extend machine life and reliability. Use of thcrmocouples to obtain temperature measurements of a surface in concentrated rolling-sliding contact proved satisfactory. Overall electrical noise level in the thermocouple circuit was reduced to a level equivalent to I’ to ~~1~

temperature differenrc so tllat a dynxn~~r measurement sensitivity of the order of 2 *)I3°F could be predicted with c(mfidcncc. I,‘oI the low loads and rolling speeds used in 1111, cxpcriments to date (Lo.000 p.5.i. maximum contact pressure. 600 r.pm.), there was no detectable surface tempcraturc rise in the contact zone except at ycry high sliding-rolling speed ratios (as high as oo”(,). Contact Temperature in Rubbing Parts of Machines. A. I. Pestoy, Rzrssiax El&g. ,I., (Translation of l’estrzik Mashinostr.), 41 (5) (1961) 3-X. For abstract see .4ppl. Mech. Rev., 16 (0) (1963) 498.

3. T.UURIC~TION.4No 3.’ Lubrication Lubrication Symposium, London, 11-14 February, 1963. Sci. Lubrication, 15 (3) (1963) 5,. Papers read at the symposium included the following : Central&d Lubrication of Industrial Plant, by H. W. Clark and J. Clements; Looking ahead in Lubrication, by D. R. I’ryce ; Some Aspects of Synthetic Lubricants, by R. G. Bickerton ; Principles and Applications of Lubrication with Solids, by E. R. Braithwaite and G. W.

Rowe

;

Research

01% the Properties of Labvicants and Hydraulic Fluids at the National Engineering Laborafory, by A. T. J. Hayward; Lubrication Theory and Magnetohydrodynamic Effects and Applications to Liquid ll!letals, by

W. F. Hughes; Some Aspects of Development i- Applzcation of Cutting Fluids, by P. Driver and C. J. Taylor ; The Application of Additives to Industrial Lubricants, by I’. H. Molyneux: Effects of Additives on Greases, by S. F. Cal-

houn and G. I’. Murphy; Modern Techniques in Lubrication by B. J. Donovan; Lubrication

under

Space

Vacuum

Research, Conditions,

by F. J. Clauss.

LUBRICANTS

contains the results and conclusions of a study of the four basic factors (surface dcformation, surface roughness, squeeze films, viscoelasticity) which influence gear lubrication and load-carrying capacity. A review of the techniques used in these investigations is included. (For earlier work by MacConochie, see Weav, 4 (1961) IO.) The Adhesion of Plane Plates, Separated by a Layer of Oil. (in Russian) V. F. Kalinina, Izv. I’yssh. Uchebn. Zavedenii Mashinostroenie,

For abstract (1963)

75-84. Mech. Rev.,

16

(4)

337.

Relationship Between Temperature and Amount of Oil in an Engine Lubricating System. N. S. Pasechinikov, Russian Eng. J., (Translation of tzrestnik Mashinostr.). 42 (r) (1962) 43-45.

For abstract (1963)

see Appl.

Mech.

Rev.,

16

(3)

250.

The Applicability of the Reynolds-Stefan Formulae to Explain the Adhesion of Plane Plates Separated by a Layer of Oil. (in Russian) V. F. Kalinina, Izv. Vyssh. Uchebn. Zavedenii, Mashinostroenie, 6 (1960) I 14-119. For abstract see Appl. Xfech. Hev., 16 (7) (1963)

An Investigation of Oil Film Thickness between Involute Gear Teeth. 0. MacConochie, L. C. Hsu and E. C. Woodward, Jr., Sci. and Tech. Aerospace Repts., I (8) (1963) 525; 36 pp., 27 refs. Research was conducted to formulate an analytical description of relaxation effects in lubrication. Attempts were made to correlate experimental data of percent boundary operation with a dimensionless grouping of the load, speed and viscosity. This report

5 (1960)

see Appl.

584.

A Generalized Reynolds Equation for FluidFilm Lubrication. D. Dowson, Intern. J. Mech. Sci., 4 (1962) 159-170. For abstract see z4ppl. Mech. Rev., 16 (3) (1963)

250.

Viscous Flow of a Gas Between Two Parallel Plates. (in French) V. N. Constantinescu, Rev. Mecan. Appl.. 7 (I) (196s) 23340. Iliear. 0 (1963) 407. 4 10