Novel Bio-inspired Design for the Carcass Layer of Flexible Risers with Increased Strength Under External Pressure

作     者：Jaafar Ghanbari Ali Baloui Jaafar Ghanbari;Ali Baloui

作者机构：Mechanical Engineering DepartmentQom University of TechnologyQomIran 

出 版 物：《哈尔滨工程大学学报(英文版)》 (Journal of Marine Science and Application)

年 卷 期：2024年第23卷第4期

页      码：823-832页

摘      要：Flexible risers are crucial pieces of equipment for moving output fluids from wells to platforms during the extraction of oil and gas from deepsea *** of the causes of collapse in these pipes is the high hydrostatic pressure applied to risers in deep *** innermost layer of a riser,known as the carcass layer,plays a critical role in resistance to external *** this study,we investigated the collapse(nonlinear buckling)of a riser under external pressure,and a novel design based on the structure of a beetle’s exoskeleton was used to increase the load capacity of the carcass *** type of beetle skeleton is constructed in such a way that it creates strong connections among the various parts of the external skeleton to considerably enhance strength against external pressure while allowing necessary *** assess the performance of the design in comparison with the original design,we examined the nonlinear buckling of the new structure under external *** genetic algorithm optimization,design parameters were obtained,and the maximum strength before collapse was *** show that the critical pressure in the new design substantially increases relative to that in the original design.

主 题 词：Flexible riser Carcass layer Nonlinear buckling Critical pressure Bio-inspired design Finite element method 

学科分类：081505[081505] 08[工学] 0815[工学-矿业类] 0824[工学-林业工程类] 0814[工学-地质类] 082401[082401] 

核心收录：

D　O　I：10.1007/s11804-024-00476-5

馆 藏 号：203144464...