张力腿平台在位期间张力腿涡激振动疲劳分析

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英文篇名：VIV Fatigue Damage Analysis for Tendons of Tension Leg Platform under In-Place Condition 作者：刘玉玺 ; 黄怀州 ; 刘钊 英文作者：LIU Yu-xi;HUANG Huai-zhou;LIU Zhao;Offshore Oil Engineering Co.,Ltd.; 关键词：张力腿平台(TLP) ; 疲劳损伤 ; 涡激振动(VIV) ; 海流 英文关键词：tension leg platform(TLP);;fatigue damage;;vortex induced vibration(VIV);;current 中文刊名：HYZB 英文刊名：Ocean Engineering Equipment and Technology 机构：海洋石油工程股份有限公司; 出版日期：2018-06-15 出版单位：海洋工程装备与技术 年：2018 期：v.5;No.24 语种：中文; 页：HYZB201803009 页数：5 CN：03 ISSN：31-2088/P 分类号：42-46

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.

引文

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