A method using finite elements for the solution of journal bearings is outlined. The special properties of an exponentially shaped element are used together with a satisfactory approximation for the axial pressure profile. This approach is one hundred times faster than a conventional finite difference solution of equivalent accuracy. The method can be applied to the solution of locus paths for journal bearings under external dynamic load or under whirl conditions.
The predictor-corrector method used to march out a locus path is briefly outlined and several typical loci are presented as examples.
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References
1.
MilneA. A.‘Theoretical studies of the performance of dynamically loaded journal bearings’, N.E.L. Rept No. 701962.
2.
LloydT.HorsnellR.McCallionH.‘An investigation into the performance of dynamically loaded journal bearings: Theory’, Proc. Instn mech. Engrs1966–67181 (Pt 3B), 1–8.
3.
CampbellJ.LoveP. P.MartinF. A.RafiqueS. O.‘Bearings for reciprocating machinery: A review of the present state of theoretical, experimental and service knowledge’, Proc. Instn mech. Engrs1967–68182 (Pt 3A), 51.
4.
LloydT.McCallionH.‘Journal bearings without circumferential symmetry under dynamic loading’, Proc. Instn mech. Engrs1968–69183 (Pt 3P), 3–8.
5.
ShellyP. D.EttlesC.‘A tractable solution for medium length journal bearings’, Wear197016, 221–228.
6.
ConteS. D.Elementary numerical analysis1965 (McGraw-Hill, London and New York).
7.
ShellyP. D.‘A study of dynamically loaded journal bearings’, Ph.D. Thesis 1971 (Mechanical Engineering Department, Imperial College).
8.
ShellyP. D.EttlesC.‘Solutions for the load capacity of journal bearings with oil grooves, holes, reliefs, or chamfers in non-optimum conditions’, Tribology Convention1971, 38–46 (Instn Mech. Engrs, London).
