CAJ | 학술논문

为分析超大型浮体的水弹性响应特性，以某超大型浮体为研究对象，通过建立多段梁模型，并利用 ANYSY软件进行结构干模态分析，利用流体分析软件求解得到结构的水动力系数，最后通过水弹性计算程序对超大型浮体在不同浪向、不同波长波浪作用下的水弹性响应进行了研究。同时，为分析超大型浮体连接件刚度的影响，对不同连接件刚度下的水弹性响应进行了对比分析。计算结果表明，长波作用下浮体的刚体作用占主导，而在短波作用下弹性变形占主导；浮体对波浪的浪向较为敏感，但弹性变形的最大值一般出现在波长接近于浮体在波浪入射角方向上投影的长度时，浮体的水弹性响应对连接件的刚度较为敏感。
위분석초대형부체적수탄성향응특성，이모초대형부체위연구대상，통과건립다단량모형，병이용 ANYSY연건진행결구간모태분석，이용류체분석연건구해득도결구적수동력계수，최후통과수탄성계산정서대초대형부체재불동랑향、불동파장파랑작용하적수탄성향응진행료연구。동시，위분석초대형부체련접건강도적영향，대불동련접건강도하적수탄성향응진행료대비분석。계산결과표명，장파작용하부체적강체작용점주도，이재단파작용하탄성변형점주도；부체대파랑적랑향교위민감，단탄성변형적최대치일반출현재파장접근우부체재파랑입사각방향상투영적장도시，부체적수탄성향응대련접건적강도교위민감。
To study the hydroelastic response of very large floating structures,multi-segment beam model of a very large floating structure was proposed here.With the help of ANSYS and hydrodynamic analysis tool,dry modal and hydrodynamic coefficients were obtained.Then hydroelastic analysis of the beam model was conducted and the hydroelastic response under waves of different incident direction and different wave length were studied.The stiffness of the connectors were under study at the same time.It can be concluded from the results that,under long waves,rigid body motion is dominant,while elastic deformation domi-nates under short waves.The hydroelastic response is sensitive to the wave heading and the biggest elastic deformation always happened when the proj ection of the length of the VLFS on wave heading direction is close to the wave length.Elastic deformation is sensitive to the stiffness of the connectors.