The Peak Dynamic Loading of a Winch in Term of the Rope Flexibility

Stanisław Michałowski; Wiesław Cichocki

doi:10.4028/www.scientific.net/KEM.542.105

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The Peak Dynamic Loading of a Winch in Term of the Rope Flexibility
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 542The Peak Dynamic Loading of a Winch in Term of the...

The Peak Dynamic Loading of a Winch in Term of the Rope Flexibility

Abstract:

The cable winch is modeled as a system with two degrees of freedom during a start-up and braking phase for two basic operating cases: raising a lifted load case and elastic bond tensed by a raised load force case. The theoretical calculations were verified with experimental studies. Consequently, it is possible to define the winch drive overloads factor. Moreover, the determination of the number of stress change cycles in the rope can be performed. This important is with regard on possibility of rise in the rope the fatigue cracks. In dynamic experiments, three typical cases of raising mechanisms were taking into account: lifting the load with raising it, lifting the load with tensed rope and braking the load while lowering.