基于时域分析及蒙特卡罗抽样法的平台危险工况预报

Dangerous Working Conditions Prediction of Platform Based on Time Domain Analysis and Monte Carlo Sampling

研究海洋平台的水动力特性及锚泊系统特性,阐述了垂链线方程的推导过程。选取南海海域百年一遇海况为平台自存海况标准,在AQWA里构建锚泊系统与平台的耦合模型,求得平台运动响应及系泊缆张力响应,并依据蒙特卡罗抽样法对危险载荷进行预报。

The hydrodynamic characteristics of the offshore platform and characteristics of the anchorage system were researched.The deduction process of the vertical chain line equation was expounded.The model of the mooring system coupled with platform was established in AQWA.According to the data of wave state once-in-a-hundred-year in south China sea,the platform motion response and mooring line tension response were studied to forecast the dangerous load based on the Monte Carlo sampling method.