Spar平台垂荡-纵摇内共振特性研究  

Study on Heave-pitch Internal Resonance of a Spar Platform

作　　者：王海洋[1] 蔡斯渊[1] 夏益美[1] 

机构地区：[1]中国船舶工业集团公司第七〇八研究所,上海200011

出　　处：《中国海洋平台》2014年第1期44-49,56,共7页China offshore Platform

摘　　要：考虑变化的排水体积和初稳心高的影响,建立垂荡一纵摇的耦合运动方程,简化的运动方程是非线性的,采用多尺度法得到了耦合运动方程的一阶定常响应解。运用非线性动力学理论,研究了Spar平台发生垂荡主共振时垂荡一纵摇耦合运动的饱和现象、幅值跳跃现象和解的稳定性等问题,并提出了相关的工程建议。Considering the varying volume and metacentric height, the simplified nonlinear coupled equation between heave and pitch motion is established. And then the first order steady response results of the coupled equation are obtained with the method of multiple scales. At last, according to the nonlinear dynamic theory , the saturation phenomenon, amplitude iump phenomenon and the stability of the coupled heave-pitch movement are studied when the heave primary resonance occurs to the Spar platform, and the correlative engineering advice is raised.

关 键 词：多尺度法 主共振 渗透现象 跳跃现象 内共振 

分 类 号：P75[天文地球—海洋科学]