中国石油大学学报（自然科学版）2025，Vol.49Issue(3)：196-204,9.DOI:10.3969/j.issn.1673-5005.2025.03.021
畸形波作用下深水锚泊平台-隔水管耦合系统动力响应特性
Dynamic response characteristics of deep-water mooring platform-riser coupling system under freak waves
摘要
Abstract
Freak waves can ruin the mooring platform and riser system owing to the features of steep crest and concentrated energy.A dynamic coupled model for the deep-water mooring platform and the riser under freak waves was established,based on the method of random wave combined with the instantaneous wave to simulate the freak wave arrays.Based on the New-mark-β method and the fourth-order Runge-Kutta method,a methodology was proposed to investigate the dynamic response characteristics of deep-water mooring platform-riser coupling system under freak waves,and a corresponding dynamic me-chanics solver was developed independently,to realize the whole analysis on the dynamic response of the coupled system un-der the freak waves.The influence mechanism of freak waves on the mooring platform and the riser-subsea wellhead system was revealed.The results show that the long period and large amplitude movement of the platform will be caused by freak waves in surge direction by the instantaneous impact force.Freak waves and the platform motion under freak waves signifi-cantly increase the displacement and bending moment amplitudes of the riser-wellhead system.The displacement and bending moment have been significantly enhanced for the riser-wellhead system due to the platform movement under freak waves,and its variation takes the shape of high peak and oscillates drastically.The bending moment of the subsea wellhead is larger,and it is opt to cause the stability failure.关键词
畸形波/锚泊平台/隔水管/耦合系统/动力响应Key words
freak waves/mooring platform/riser/coupling system/dynamic response分类
能源科技引用本文复制引用
邱娜,刘秀全,刘兆伟,畅元江,陈国明..畸形波作用下深水锚泊平台-隔水管耦合系统动力响应特性[J].中国石油大学学报（自然科学版）,2025,49(3):196-204,9.基金项目
国家重点研发计划(2022YFC2806501) （2022YFC2806501）
国家自然科学基金项目(52271300,52071337,51809279) （52271300,52071337,51809279）
