A Novel Conceptual Telescopic Positioning Pile for VLFS Deployed in Shallow Water:Structure Design

作     者：XU Sheng-wen LIU Xiao-lei WANG Xue-feng DENG Yan-fei XU Sheng-wen;LIU Xiao-lei;WANG Xue-feng;DENG Yan-fei

作者机构：State Key Laboratory of Ocean EngineeringShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE)Shanghai 200240China School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China CIMC Offshore Co.LtdShenzhen 518000China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2020年第34卷第4期

页      面：526-536页

核心收录：

学科分类：08[工学] 0824[工学-船舶与海洋工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.51709170 and 51979167) the Ministry of Industry and Information Technology of China(Grant No.2018473) the Shanghai Sailing Program(Grant No.17YF1409700) 

主　　题：novel telescopic positioning pile feasibility demonstration structural optimization very large floating structure(VLFS) 

摘      要：A conceptual design of using novel telescopic piles to position a multi-modular very large floating structure(VLFS),which is supposed to be severed as a movable floating airport,is *** telescopic piles can automatically plug in the soil to resist the environmental loads and pull out from the soil to evacuate or move on to the next operational *** feasibility demonstration of the conceptual design includes two parts:function verification and structure *** the latter part of the conceptual design,a time-domain structural analysis is firstly conducted by using Abaqus *** simulation results suggest that the preliminary structure scheme is not optimum due to the insufficient structure utilization,although both structure safety of the piles and positioning accuracy are *** realize a cost reduction of construction and installation,a Genetic Algorithm-Finite Element Analysis(GA-FEA)method is employed to perform structural *** optimization,31 percent of the weight of each pile is reduced and higher structure utilization is *** difference of the self-weight and allowable buoyancy of a single module(SMOD)of a semisubmersible-type VLFS is much larger than the weight of the *** with the function verification in our previous work,the conceptual design of using the novel telescopic pile to position VLFS is demonstrated to be feasible.