Abstract

Model experiments for multi conical legged structures (MCLS) were performed. Two types of MCLS, namely UB-MCLS and DB-MCLS were tested in IHI Ice Model Tank. The experiments were performed taking the intrusion angle as a testing parameter and six force components were measured.In the experiments, the ice forces and the ice-induced overturning and twisting moments revealed its maximum at the intrusion angle of 30 deg. And in normalized fashion, the ice force and the ice-induced moments for DB-MCLS were twice as large as those for UB-MCLS. However, the magnitudes of those quantities were approximately the same for both DB-MCLS and UB-MCLS.

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