基于谱分析法的浮式处理与补给基地疲劳强度研究  

Fatigue assessment of floating process and supply base based on spectrum analysis method

作　　者：许溢洋 窦培林[1] 朱凌飞 XU Yiyang;DOU Peilin;ZHU Lingfei(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Shanghai Shipbuilding Technology Research Institute,Shanghai 200032,China)

机构地区：[1]江苏科技大学船舶海洋工程学院,镇江212003 [2]上海船舶工艺研究所,上海200032

出　　处：《江苏科技大学学报（自然科学版）》2019年第6期9-13,共5页Journal of Jiangsu University of Science and Technology:Natural Science Edition

摘　　要：运用数值模拟方法,以新型海洋结构物浮式处理与补给基地(assessment of floating process and supply base,FPSB)为研究对象,通过设计波法筛选出整体结构疲劳热点,由谱分析法计算得出其热点区域的损伤度,并比较了不同波浪扩散函数、浪向对于FPSB疲劳强度的影响.计算结果表明,浮式处理与补给基地各节点处的疲劳寿命符合设计要求,为了保证安全性可不设置波浪扩散函数,直浪与斜浪对FPSB的疲劳损伤度贡献最大.By using numerical simulation to research the floating process and supply basement,and by using the designing wave method to figure out the fatigue hot spot of FPSB structure,the fatigue life of hot spot is calculated by spectral analysis,and the influence of different wave diffusion function and wave direction on fatigue strength of FPSB are compared in this paper.The calculation results show that the life of each node in FPSB meets the design requirements.In order to ensure safety,wave dispersion function could not be setted,the straight wave and oblique wave have the greatest contribution to the fatigue damage of FPSB.

关 键 词：浮式处理与补给基地 谱分析法 疲劳强度 有限元分析 

分 类 号：U661.4[交通运输工程—船舶及航道工程]