扣入式与缠绕式止屈器联合作用的止屈效率  

Efficiency of Slip-on Arrestor Combined with Spiral Arrestor

作　　者：余建星[1] 安思宇[1] 段晶辉 蒋梅荣[1] 韩梦雪 YU Jianxing;AN Siyu;DUAN Jinghui;JIANG Meirong;HAN Mengxue(State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学水利工程仿真与安全国家重点实验室,天津300072

出　　处：《中国海洋平台》2018年第4期51-58,共8页China offshore Platform

基　　金：国家重点基础研究发展计划(973计划)资助(2014CB046805);国家自然科学基金资助项目(51239008)

摘　　要：利用Abaqus软件建立并优化扣入式止屈器和缠绕式止屈器的有限元模型,通过试验验证模型的正确性。提出2种全新的联合作用式止屈器模型,并详细研究影响止屈器穿越压力的主要敏感性因素(包括长度、匝数、壁厚、间距、缠绕方式)对于扣入式止屈器、缠绕式止屈器、联合作用式止屈器止屈效率的影响,得到2种不同的穿越模式。通过与单独扣入式和缠绕式止屈器进行对比,分析二者联合作用的止屈效果,可为实际工程应用提供参考。Abaqus software is used to develop and refine FEM of slip-on arrestors and sprial arrestors.The dependability of the models is verified by test results.As two new types of combined-arrestor are presented,detailed and comprehensive analysis is developed about several influence factors of crossover pressure,including length,number of turns,thickness,arrangement distance and winding mode.Two crossover modes are obtained through the numerical simulation.The arresting efficiency of combined-arrestor is compared with slip-on arrestors and spiral arrestors through which the efficiency of combined-arrestor is studied,which could provide reference basis to practical engineering.

关 键 词：扣入式止屈器 缠绕式止屈器 联合作用止屈器 止屈效率 穿越模式 

分 类 号：TE88[石油与天然气工程—油气储运工程]