Design of Ship Transfer Trolleys Scheme of Drillship on Horizontal Berth
In order to analyze the design plan and rationality of trolleys scheme,carrying capacity,gross tractive force,sup-porting design and hull structure stress,combing with the weight distribution of drillship and support ability of trolleys the ship weight division and trolleys arrangement were ascertained,and the carrying capacity of each division and gross tractive force were evaluated.In the supporting design,the contact area of the hull was increased as much as possible so that the force is evenly stressed.The finite element method was used to directly assess the strength of vessel's shell plate,frame plate and girder near the moving trolleys,showing that the support load of trolleys in each division is below the allowable value,the stress of hull struc-ture is below the allowable stress,and gross tractive force can satisfy the requirement of ship transfer,therefore the design of trol-leys scheme is reasonable.
ship moving and launchingtrolley regional arrangementstress analysis
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