Response of conductor induced by motions of jackup in cantilever mode

Key words:  conductor  relative motions  jackup in cantilever mode  gap element  response  deflection

Abstract:

With gap elements modeling the gap contact condition between guided supports and the conductor systems, the de-?flections response of the conductor systems induced by the motions of jackup in cantilever mode and offsets of the jacket platforms under operating conditions was investigated by finite element method. The limiting relative excursions between the jacket out of phase and in phase with the jackup and the distributions of the moment were quantified by the strength and stability analysis of the conductor systems. The results show that for given conductor strength and dimensions, the maximum relative displacement between jackup and jacket platform with guide offsets is about 75. 0 cm.