摘要
针对Spar平台的刚体特性,建立了Spar平台与尾流阵子之间的耦合运动方程,利用该方法首先对一模型平台进行了数值验证,计算得到的锁定区域与实验测得的结果吻合良好。其次对一真实的Spar平台进行了计算,并得到Spar平台和尾流阵子的时间历程曲线。
The coupled equations of Spar platform and wake oscillators are established according to the rigid characteristic of the Spar.A validation is carried on using the method for a model Spar platform,and the results show that the lock-in region using our method agrees with the experimental date very well.The real Spar is calculated by the method,and the time histories of Spar platform and wake oscillator are obtained.It can be observed that,the amplitudes and periods of the vortex induced Spar motions are bigger than the usual vortex induced vibrations.
出处
《中国海洋平台》
2011年第1期17-22,共6页
China offshore Platform
基金
创新研究群体科学基金(50921001)
国家重点基础研究发展计划(973)资助项目(2010CB832700)
关键词
SPAR平台
尾流阵子
锁定区域
无量纲位移振幅比
无量纲升力系数比
Spa platform
wake oscillator
lock-in region
non-dimensional displacement amplitude
non-dimensional lift force coefficient
