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首页> 外文会议>The proceedings of the twelfth (2002) international offshore and polar engineering conference (ISOPE-2002) >A Design of Bilge Keels for Harsh Environment FPSOs
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A Design of Bilge Keels for Harsh Environment FPSOs

机译：恶劣环境FPSO的舱底龙骨设计

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As the offshore oilfields move to the deeper ocean, FPSOs become arnpopular solution even in the harsh environment. Most FPSOs are, morernor less, likely to be suffered from the roll motion regardless of havingrnthe weathervane ability. In order to reduce the roll motion of FPSO,rnbilge keels are usually attached. In this paper, the design methods of thernbilge keels for FPSOs are studied and an efficient bilge keel design isrnsuggested. Systematic model tests were carried out for the selection ofrnthe optimum section shape and corresponding bilge keel configurations.rnUsing a two-dimensional wave flume, various configurations of thernbilge keel were tested. Both the rectangular shape sections with andrnwithout the bilge keel were tested. The effect of the bilge keel width onrnthe damping was examined. By the tests changing the projected anglesrnand end shapes of the bilge keel, we could find out that speciallyrndesigned end configuration could reduce the depth of the bilge keelrnsignificantly without sacrificing the damping ability. Through thesernstudies, a simple method for selection of optimum section shape andrnbilge keel dimensions of FPSO could be introduced in the early designrnstage .
机译：随着海上油田向更深的海洋转移，即使在恶劣的环境中，FPSO也是解决问题的方法。无论风标能力如何，大多数FPSO都可能遭受侧倾运动的影响，甚至更少。为了减少FPSO的侧倾运动，通常会附接龙骨龙骨。本文研究了FPSO舱底龙骨的设计方法，并提出了一种有效的舱底龙骨设计方法。为了选择最佳的截面形状和相应的舱底龙骨，进行了系统模型测试。使用二维波浪水槽，对舱底龙骨的各种结构进行了测试。测试了带有和不带有舱底龙骨的两个矩形截面。研究了舱底龙骨宽度对阻尼的影响。通过改变舱底龙骨的投影角度和端部形状的测试，我们可以发现，经过特殊设计的端部构造可以在不牺牲阻尼能力的情况下显着减小舱底龙骨的深度。通过这些研究，可以在设计的早期阶段提出一种简单的方法来选择FPSO的最佳截面形状和龙骨尺寸。

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