Based on Gaussian load processes, a new formula suitable for evaluating the combined fatigue damage due to high- and low-frequency loads is derived. Then, by using of the Winterstein’s transformation, the developed formula is extended for the combination of non-Gaussian loads. The numerical simulation shows that the predicted damage by the derived formula is very simple to use and close to the rain-flow prediction.

Issue Section:
Technical Papers
Keywords:
offshore installations, rain, marine engineering, fatigue, Gaussian processes, structural engineering
Topics:
Fatigue damage, Stress, Damage
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Copyright © 2007
 by American Society of Mechanical Engineers
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