西南石油大学学报（自然科学版）2024，Vol.46Issue(3)：102-108,7.DOI:10.11885/j.issn.1674-5086.2022.06.20.01
浅海高压立管涡激振动及疲劳特性分析工艺
Analysis of Vortex-induced Vibration and Fatigue Characteristics of High-pressure Riser in Shallow Sea
姜玉峰 1徐万海2
作者信息
- 1. 中海油能源发展股份有限公司上海工程技术分公司,上海长宁 200335
- 2. 天津大学水利工程仿真与安全国家重点实验室,天津南开 300072
- 折叠
摘要
Abstract
With the continuous development of oil and gas resources in the East China Sea,jack-up platforms with lower development costs will be widely used.The marine environment where the riser is located is complex and changeable.Due to the large ratio of structural length to diameter,vortex-induced vibrations will occur under the action of ocean currents.In this paper,the wake oscillator model is used to predict the vortex-induced vibration of the high-pressure riser.Based on the content of the DNV specification,the S-N curve method is used to calculate the structural fatigue.The model is discretely solved by the finite difference method.The research focuses on the influence of the top tension with the vortex-induced vibration and fatigue characteristics of the riser.It is found that the top tension will affect the vortex-induced vibration response of the riser,and further change the fatigue life of the structure,and head affect the safety of the structure.关键词
自升式平台/高压立管/涡激振动/疲劳损伤/尾流振子/有限差分法Key words
jack-up platform/high pressure riser/vortex-induced vibration/fatigue damage/wake oscillator model/finite dif-ference分类
能源科技引用本文复制引用
姜玉峰,徐万海..浅海高压立管涡激振动及疲劳特性分析工艺[J].西南石油大学学报（自然科学版）,2024,46(3):102-108,7.
