Floating crane response in sea waves

摘要: Many activities present in the offshore technology are affected by sea waves and their safety strongly depends on state. The fundamental question operation risk analysis is limit state which enables safe controlled all phases: from surface to bottom. especially important when some lifting performed waves. This paper presents a dynamical model of floating crane with hanging load at high altitude above level. defined as linearized coupled double pendulum where usual 6 DOF oscillatory motions extended additional 3 swinging load. numerical calibrated tuned according measured towing tank. significant values boom top accelerations were estimated for given design different vertical positions. problem illustrated example consisting simple single pontoon an ordinary land mounted deck. reliability proposed method evaluated basis correlation between calculated data.