Paper 13: Fatigue Cracks of Bearing Metals Caused by Reciprocating Rubbing

Abstract

The authors carried out an experimental investigation on the fatigue failure of engine bearings by means of a combination of a slider and bearing metal on a reciprocating bed. Cracks were generated under the condition of mixed lubrication in the vicinity of the contact areas at the stroke ends of the reciprocating bed, where the friction force abruptly increased and reversed its direction. A unique relation similar to the usual fatigue curve was obtained by plotting the friction force against the cycles to failure in place of normal load. The conclusion was further confirmed by an experiment using another testing machine generating an alternating tangent force without sliding.

Get full access to this article

View all access options for this article.

References

Fogg

Jakeman

‘The friction of an oscillating bearing’, Engineering, Lond. 1938 148, 170.

Barwell

F. T.

Milne

A. A.

Webber

J. S.

‘Some experiments on oscillating bearings’, Trans. Instn Engrs Shpbldrs Scotl. 1955 95 (Pt 5), 267.

Duckworth

W. E.

Walter

G. H.

‘Fatigue of plain bearings’, Proc. Int. Conf. Fatigue of Metals 1956, 585 (Instn Mech. Engrs, London).

Russell

A. E.

‘Some bearing tests made with a machine producing impulsive loading’, Proc. Instn mech. Engrs 1958 172, 1047.

Blount

E. A.

‘Design factors influencing the fatigue resistance of connecting-rod big-end bearings’, ibid. 1961 175, 513.

Soda

Miyahara

‘Fatigue failure of plain bearing metals under dynamic load’ (in Japanese), J. Japan Soc. mech. Engrs 1959 62, 398.

Wakuri

Akahoshi

Asanabe

‘Investigation on fatigue failure of crosshead-pin bearings’, Japan Soc. Mech. Engrs, Annual Meeting 1966, Paper 602.