Discussion on Key Points of Wind Load of Jack-up Unit  

作　　者：林一 胡安康 熊飞 蒋玮 

机构地区：[1]College of Shipbuilding Engineering,Harbin Engineering University [2]CIMC Ocean Engineering Design&Research Institute

出　　处：《China Ocean Engineering》2014年第1期127-138,共12页中国海洋工程（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51079034);the Fundamental Research Funds for the Central Universities(Grant No.HEUCFR1003)

摘　　要：The anti-overturning ability and structure safety of jack-up unit in in-place condition are often affected by environment loads, especially wind load. According to the MODU rule, the projected area method is used for calculating the wind load. However, the calculated results are conservative and not good for structure optimization design. In this paper, a 400 ft jack-up is studied as an example. Based on the wind tunnel test and numerical simulation method, some key points of wind load calculation, such as shielding effect, lift effect and shape coefficient of component, are discussed. The study shows that the points mentioned above, which are ignored in the MODU rule calculation, result in the conservative result.The anti-overturning ability and structure safety of jack-up unit in in-place condition are often affected by environment loads, especially wind load. According to the MODU rule, the projected area method is used for calculating the wind load. However, the calculated results are conservative and not good for structure optimization design. In this paper, a 400 ft jack-up is studied as an example. Based on the wind tunnel test and numerical simulation method, some key points of wind load calculation, such as shielding effect, lift effect and shape coefficient of component, are discussed. The study shows that the points mentioned above, which are ignored in the MODU rule calculation, result in the conservative result.

关 键 词：jack-up unit wind load shielding effect lift effect shape coefficient 

分 类 号：TE952[石油与天然气工程—石油机械设备]