学报(中文)

考虑复杂预应力的深海立管参激稳定性

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  • 1. 上海交通大学 海洋工程国家重点实验室,上海 200240; 2. 上海交通大学 高新船舶与深海开发装备协同创新中心, 上海 200240; 3. 广西壮族自治区河池市天峨县向阳镇人民政府, 广西 河池 547300

基金资助

海洋工程国家重点实验室基金项目(1507)

Parametric Stability for Deep-Sea Marine Riser Under Consideration of Complex Pre-Stress Force Distribution

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  • 1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China; 3. The People’s Government of Xiangyang Town, Tiane County, Hechi 547300, Guangxi, China

摘要

针对立管结构中存在着复杂预应力分布的问题,探讨了立管受海洋平台升沉运动所引起的立管参激振动问题.基于结构预应力和立管振动理论,开展了含复杂预应力的顶张力立管结构参激振动问题研究.对顶张力立管的参激振动进行了数值计算,对比了复杂预应力大小、方向对立管结构固有频率、振型及参激不稳定区的影响.计算结果表明,焊接残余应力的存在使立管振动频率、振型、不稳定区大小和迁移方向发生改变,影响着立管结构的共振特性.

本文引用格式

陈炉云1,2,韦克龙3 . 考虑复杂预应力的深海立管参激稳定性[J]. 上海交通大学学报, 2018 , 52(4) : 395 -402 . DOI: 10.16183/j.cnki.jsjtu.2018.04.003

Abstract

Parametric Stability for Deep-Sea Marine Riser Under Consideration of Complex Pre-Stress Force Distribution

参考文献

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