新型半潜式起重平台联合吊装的设计与分析

Design and Analysis of Tandem Hoisting for New Type SSCV

在论述吊装影响因素的基础上,对新型半潜式起重平台吊装流程进行设计和规划:受主机功率的限制,在起吊过程中快速排出压载水以满足货物脱离速度的要求;鉴于双吊联合回转的复杂性,构建该过程限制条件的数学模型,并开发用于确定吊机联动作业的优化程序。以某Spar平台上部模块吊装为例,通过优化求解获得吊臂最佳初始提升角和两吊机回转过程,并应用时域模拟来获得吊物详细运动和关键节点视图,以验证优化程序的可靠性。

On the basis of discussing the influencing factors of hoisting,the platform hoisting process is designed.In view of the limitation of the main engine power,the ballast water is quickly discharged during the hoisting process to meet the requirements of escape velocity of the cargo.In view of the complexity of the double hanging simultaneous slewing,a mathematical model of the process constraints is constructed,and an optimization program for determining the simultaneous operation of the crane is developed.Taken the hoisting process of superstructure module of a Spar platform as an example,the optimal initial hoisting angle of the boom and the slewing process of the two cranes are obtained through optimization.Time domain simulation is applied to obtain the motion and key node views of the cargo to verify the reliability of the optimizer.