Failure Analysis of a Redundant Reeving Hoist

[+] Author and Article Information
A. J. Edmondson

Mechanical and Aerospace Engineering, The University of Tennessee, Knoxville, Tenn.

J. Eng. Ind 98(4), 1166-1169 (Nov 01, 1976) (4 pages) doi:10.1115/1.3439075 History: Received January 06, 1976; Online July 15, 2010


An analysis is presented of a reeving arrangement suitable for the hoisting of critical materials requiring fail-safe criteria. The system consists of two independent wire ropes symmetrically threaded through the crown and lower blocks and reeved by a single takeup drum. The analysis provides for the load in each line of the wire rope remaining after failure of one rope occurs. The motion of the lower block and load are also provided for the variety of failure conditions considered. The analysis is useful to predict the effect of various design parameters on the integrity of system in the event of a single component failure.

Copyright © 1976 by ASME
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