DESIGN OF AN EFFICIENT TEST BED FOR WIRE ROPES CRUSHING ASSESSMENT
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SUMMARY
This article presents a machine specifically designed to perform crushing tests on wire ropes wound on a multilayer drum during winding and unwinding.
Crushing is a form of irreversible mechanical damage in wire ropes caused by excessive radial compressive forces that deform the rope’s structure, leading to flattening, ovalization, and strand and wire displacement.
The objective is to evaluate the mechanical resistance of the ropes to the high radial pressures generated during use in industrial environments and on cranes for the oil and energy sector. With the exception of the load spectrum, the tests simulate real operating conditions to gradually generate permanent deformations, crushing and therefore performance degradation.
The operation, test parameters, and instrumentation used are described. The tests will aim to identify the most resistant type of wire rope and help preventing significant damage to lifting systems. However, these tests mark the beginning of a broader experimental project to study the performance and durability of ropes in greater detail.
Furthermore, the machine, thus designed, is versatile enough to also be used for fatigue tests such as bending test and the possibility of reverse bending.
Author(s): L. Solazzi, I. Trevisani
