Fiber ropes are steadily gaining in popularity for offshore lifting purposes. One limiting factor is many fibers’ low tolerance for high temperatures. Measurements of rope temperature and changes in thermo-physical properties are therefore highly relevant, a task which may be performed using an infrared camera. Chemometrics is one tool among the many techniques available for image processing. The present paper details results from applying chemometrics to infrared images obtained from recent cyclic-bend-over-sheave testing. It is shown how this tool contributes to separating the various phenomena going on, like changes in thermal properties, vertical rope movement, surface degradation, and rope twist. A brief discussion on the applicability for real-life monitoring is also given.
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Condition monitoring, Fiber ropes, Chemometrics, IR camera
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