随机波浪载荷作用下海洋平台结构动力响应分析  

The Dynamic Response Analysis of Offshore Platform Structure Under Random Wave Loading

作　　者：王宏[1] 刘贤贺[1] 

机构地区：[1]渤海船舶职业学院,辽宁兴城125105

出　　处：《船舶职业教育》2016年第4期28-31,共4页Shipbuilding Vocational Education

摘　　要：海洋平台是海洋工程结构物的重要形式之一。在考虑海洋环境各种因素对平台结构动力特性影响的基础上,对起主要作用的随机波浪载荷进行研究。利用线性波浪理论和Morison方程,求出作用在导管架平台上的波浪力谱,并将平台简化为一线性系统,利用模态分析的方法计算出平台结构的随机响应谱,并对随机响应谱进行概率统计分析,确定结构的动力响应。The ocean platform is an important form of o^hore engineering structure. On the basis of considering the influence of various ocean environment factors on the dynamic characteristics of platform structure, the researcher makes research on the random wave loading which plays a major role. Using the linear wave theory and-Morison equation, the researcher calculates the wave force spectrum on the jacket platform, simplifies the platform into a linear system, calculates the platform structure＇s random response spectrum using the modal analysis method, analyzes the probability statistics of random response spectrum, and determines the dynamic response of the structure.

关 键 词：海洋平台 波浪载荷 随机响应分析 Morison方程 

分 类 号：U663.2[交通运输工程—船舶及航道工程]