Fatigue in Crane Design 821101

Fatigue in crane with particular reference to offshore cranes is briefly discussed, and field measurement records illustrating types of vibration experienced in crane structures are shown.
Design rules against fatigue in a couple of recognized Crane standards are discussed. It is pointed out that these standards might be inadequate in the evaluation of fatigue in cranes. A modified procedure for evaluation of fatigue in offshore crane elements is pointed out. The method description is provided with data which should make practical evaluations possible. The material presented is not authorized and is only to be regarded as a contribution to the current research in this field.


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