等效水深截断系统优化设计问题的新求解方法  

New Method for Solving Optimal Design Problem of Equivalent Water Depth Truncated Mooring System

作　　者：张火明[1] 张晓菲[1] 蒋娟[1] 高文军[1] 王强[1] 

机构地区：[1]中国计量学院计量测试工程学院,杭州310018

出　　处：《中国造船》2011年第2期63-73,共11页Shipbuilding of China

基　　金：国家自然科学青年基金资助项目(10602055);浙江省自然科学基金项目(Y6110243)

摘　　要：考虑总系泊系统水平和垂直两个方向的恢复力以及具有代表性的单根系泊缆静力等特性进行等效水深截断系统优化设计,以替代全水深系统进行混合模型试验。在使用混合离散变量模拟退火方法时提出了一种"接力棒"寻优方式,若每棒寻优结束后变量到达上限或者下限时,须扩大上限或缩小下限。以工作水深为320m的10万吨内转塔式系泊FPSO作为研究对象,其截断水深为80m进行等效水深截断系统优化设计计算。数值试验结果表明,截断系统设计是成功和有效的。The highest similarity degree of static characteristics including total mooring system both horizontal and vertical characteristics, as well as the static characteristics of the representative single root mooring ropes between the truncated and full depth system are obtained by Annealing Simulation Algorithm for Hybrid Discrete Variables （ASFHDV） in optimal design of equivalent water depth truncated mooring system. An optimum pattern ＂baton＂ applied to optimal design ASFHDV is put forward in the paper. If some variable reaches the upper limit or the lower limit, the upper limit needs to be extended and the lower limit needs to be reduced after each optimizing step. Considering the experimental requirements, the length of wire rope at the upper extreme is not less than eight meters, and also the diameter of the cable at the end of is greater than 0.03 meters. A 100,000t, turret mooring FPSO in water depth of 320m is taken as an example of equivalent water depth truncated mooring system optimum design and the calculation is performed to obtain the conformation parameters of the truncated mooting system. Numerical experimentation result indicates that the present trtmcated mooring system design is successful and effective.

关 键 词：深海平台 混合模型试验技术 等效水深截断 优化设计 FPSO 

分 类 号：P75[天文地球—海洋科学]