考虑复杂预应力的深海立管参激稳定性

doi:10.16183/j.cnki.jsjtu.2018.04.003

上海交通大学学报（自然版） ›› 2018, Vol. 52 ›› Issue (4): 395-402.doi: 10.16183/j.cnki.jsjtu.2018.04.003

考虑复杂预应力的深海立管参激稳定性

陈炉云1，2，韦克龙3

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

CHEN Luyun1,2,WEI Keilong3

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/Abstract

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.

关键词: 顶张力立管, 参激振动, 马蒂厄不稳定区

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

Key words: top-tensioned riser (TTR), parametric vibration, Mathieu instability domains

中图分类号:

O 323
U 674

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（自然版）, 2018, 52(4): 395-402.

CHEN Luyun1,2,WEI Keilong3. Parametric Stability for Deep-Sea Marine Riser Under Consideration of Complex Pre-Stress Force Distribution[J]. Journal of Shanghai Jiaotong University, 2018, 52(4): 395-402.

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