摘要
影响张力腿平台(TLP)张力腿疲劳寿命的一个主要根源就是海流引起的涡激振动(VIV),因此合理准确的涡激振动疲劳分析对张力腿疲劳寿命的预测具有重要的意义。首先对张力腿涡激振动响应的数学模型和应力-寿命(S-N)曲线方法进行了理论论述,随后给出了采用Flexcom和SHEAR7软件进行张力腿涡激振动疲劳分析的分析流程,最后针对某TLP在位期间海流导致的张力腿涡激振动疲劳进行了算例分析。
The vortex-induced vibration（VIV）caused by current directly affects the fatigue of tendon of tension leg platform（TLP）.Proper VIV fatigue analysis is very important for tendon fatigue life prediction.Firstly,the mathematical model for tendon VIV and stress-life（S-N）curve method are studied.Secondly,for tendons under TLP in-place condition,the procedure of VIV fatigue analysis using Flexcom and SHEAR7 is presented.Finally,detailed VIV fatigue analysis is performed for a specified TLP.
作者
刘玉玺
黄怀州
刘钊
LIU Yu-xi;HUANG Huai-zhou;LIU Zhao(Offshore Oil Engineering Co. , Ltd. , Tianjin 300451, China)
出处
《海洋工程装备与技术》
2018年第3期186-190,共5页
Ocean Engineering Equipment and Technology
