CAJ | 학술논문

涡激振动疲劳分析作为立管工程设计中重要内容，成为深水海洋工程中不可忽视的一部分。本文结合我国南海深水油气田开发前景，参考国际业界工程经验积累，基于行业国际主流分析软件 Shear7系统介绍了顶张紧式立管的涡振疲劳分析流程，包括涡激振动的发生机理与理论方法，结构模型创建，流速输入转化等方面。此外通过典型算例对所提出的截面疲劳分布流速法与传统的平面投影法进行结果对比，对这种简化方法论证了其应用与参考性。文章着重分析过程细节，对工程实践中的涡振疲劳分析具有实际应用价值。
와격진동피로분석작위립관공정설계중중요내용，성위심수해양공정중불가홀시적일부분。본문결합아국남해심수유기전개발전경，삼고국제업계공정경험적루，기우행업국제주류분석연건 Shear7계통개소료정장긴식립관적와진피로분석류정，포괄와격진동적발생궤리여이론방법，결구모형창건，류속수입전화등방면。차외통과전형산례대소제출적절면피로분포류속법여전통적평면투영법진행결과대비，대저충간화방법론증료기응용여삼고성。문장착중분석과정세절，대공정실천중적와진피로분석구유실제응용개치。
As the important aspect, vortex induced vibration fatigue is a key consideration in deep -water riser design. Base on development background of South China Sea oil and gas field and worldwide engineering experience, this paper is prepared for describing top tensioned riser VIV fatigue analysis method applying Shear7 which is the most popular software. The content includes theoretical introduction, creating model, and current converting methods. And furthermore, it demonstrated that the feasibility of a simple sectional fatigue summarizing method by results comparison. Some design details are also given in the paper. It has important reference value for deep water riser design and engineering.