An unusual failure mode has been observed in helically wound cables when operating in high temperature environments without organic lubricants. Surplus strand lengths accumulate at a point along the cable to prevent the cable passing over pulleys and on to a winch. This paper presents a theoretical explanation for this phenomenon which suggests means by which it may be prevented. Two of these methods have been tested and shown to be successful.
Get full access to this article
View all access options for this article.
References
1.
DinnikA. N.Stat'i po gornomu delu1957 (Ugletekhizdat, Moscow).
2.
GlushkoM. F.‘Non-symmetrical tension and corkscrew effect in steel wire ropes’, Prymkl. Mekh.19651 (No. 5), 72 (Central Electricity Transl. 4615).
3.
TimoshenkoS.Strength of materials1956 Part II, 292 (D. Van Nostrand, Princeton, New Jersey).
4.
BottR. O.CarrollJ. G.Radiation effects on organic materials1963 (Academic Press, New York).
5.
ParryA. A.MitchellL. A.‘Research on solid lubricants for use within gas-cooled power reactors’, Proc. Instn mech. Engrs1967–68182 (Pt 1, No. 20), 489.