National Taiwan Ocean University Institutional Repository:Item 987654321/47056
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題名: Ship Motions Contribution to the Fatigue Life of a Pre-Swirl Stator
作者: P.W. Wang;P.K. Liao;C.Y. Hsin;Y. Quéméner;C.W. Lin
貢獻者: 國立臺灣海洋大學:系統工程暨造船係
關鍵詞: Pre-Swirl Stator;Fatigue;BEM;CFD
日期: 2016
上傳時間: 2018-06-29T02:13:31Z
出版者: Proceedings of PRADS2016
摘要: Abstract:This study evaluated the fatigue life of a 5-fin Pre-Swirl Stator
(PSS) fitted ahead of the propeller of an 80,000 DWT bulk
carrier. Specifically, this study considered the fatigue loads
exerted on the fins by the stern wake and the ship motion
induced velocity fields, neglecting the effect of the propeller
induced inflow. A Boundary Element Method (BEM) based on
the potential flow theory was employed to evaluate the loads
on the fins. As input for this method, the viscous wake flow
was produced by computational fluid dynamic simulations in
calm water, and the motion-induced velocity was derived from
potential flow based seakeeping analyses. Finally, finite element
analyses were carried out using the BEM pressure distribution
to extract the hot spot stress at the fin connection,
and to thereby assess the fatigue life of the PSS, which was
found to be significantly greater than 25 years.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47056
顯示於類別:[系統工程暨造船學系] 演講及研討會

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