摘要
基于有限元方法,建立了深水自升式海洋平台的数学模型。结合线性化的莫里森方程和随机波浪理论,采用谱分析方法计算随机波浪载荷。以某典型深水自升式海洋平台为原型,利用ANSYS有限元软件建立了平台的有限元模型。在此基础上,对平台结构分别进行了的模态分析和动力响应分析,分析得到了平台的频率特性和动力特性。
Mathematical model of the deep-water jack-up offshore platforms was estab- lished based on the finite element method. Based on linearized Morison equation and random wave theory, random wave load was calculated using spectrum analysis method. A typical deep water jack-up platform was taken as the prototype, it＇s finite element model was estab- lished by ANSYS finite element software. Furthermore, Modal Analysis and Dynamic Re- sponse Analysis of the platform structure were made, and the frequency and dynamic charac- teristics of the platform were analysed.
出处
《造船技术》
2012年第5期27-31,40,共6页
基金
国家自然科学基金项目(51079065)
江苏省科技支撑计划(BE2010159)
江苏省普通高校研究生科研创新计划资助项目(CXZZ11_0278)
关键词
自升式平台
动力响应分析
随机波浪载荷
谱分析
Jack-up platform Dynamic response analysis Random wave load Spec-trum analysis
