半潜式起重船浮吊作业的数值模拟与模型试验  

Numerical and experimental analysis for lifting of a semi-submersible crane vessel

作　　者：许鑫[1] 李欣[1] 杨建民[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240

出　　处：《船舶力学》2014年第7期799-808,共10页Journal of Ship Mechanics

基　　金：国家自然科学基金重点项目(51239007)

摘　　要：深水起重船是海洋油气开发、海上风电设备安装中不可缺少的一项重要装备。以一艘最大起重能力达16000 t的半潜式起重船为研究对象,分别用数值模拟和模型试验的方法研究其空勾和最大起重时在波浪作用下的运动性能。数值模拟方法基于三维线性势流理论,分别从频域和时域两个方面分析,在起重作业时考虑船体和重物两体之间的相互耦合作用,得到船体和重物运动的RAO和运动时例曲线;在上海交通大学深水池中对该起重船进行了静水衰减、白噪声和不规则波的模型试验,其分析结果与数值模拟方法相对比。结果表明,数值模拟和模型试验得到的结果非常吻合,数值模拟方法具有较高的可靠性;半潜式起重铺管船在波浪中拥有良好的运动性能,在文中列出的海况下能够安全地进行作业。Deepwater crane vessel is necessary equipment for the installation of offshore wind driven generator and the development of ocean petroleum and gas. This paper investigated the lifting process of a semi-submersible crane vessel with 16 000 t lifting capacity by numerical and experimental analysis. Nu-merical analyses based on 3D potential flow theory in both frequency and time domain were carried out for full-lifting and empty-lifting configuration during lifting operation. Corresponding model tests were also performed in deep water basin of Shanghai Jiao Tong University. The comparison between numerical and experimental results shows that the response amplitude operator and time series agree quite well. The semi-submersible crane vessel has very favorable hydrodynamic behavior in considered sea state and the loads of equipments are allowable.

关 键 词：起重船 时域模拟 多刚体系统 模型试验 

分 类 号：U661.7[交通运输工程—船舶及航道工程]