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標題: | 海域風機結構之疲勞及可靠度分析 Fatigue & Reliability Analysis of Offshore Wind Turbine Structure |
作者: | Nguyen Van Vuong 阮文王 |
指導教授: | 羅俊雄(Chin-Hsiung Loh) |
關鍵字: | 海上風力發電機組,夾克支撐結構,可靠性分析,疲勞壽命, Offshore wind turbine,Jacket support structure,Reliability analysis,Fatigue life, |
出版年 : | 2015 |
學位: | 碩士 |
摘要: | 海上固定的風力發電機組,像夾套結構堅實的基礎具有良好的適用性較深水的深度。最近的一些研究表明,海上風電機組的外套支撐結構是過渡性的深度範圍為30μm至50米和因為一些原因是經濟問題的一個完美的替代形式單樁和抵禦外部載荷更好的一個明智的選擇。這項研究的目的是要進行一個海上風力渦輪機系統的可靠性分析。在這項研究中所用的夾套支承結構轉化為等效單支座形式和同時移動淺水深度。集中質量模型用於計算每個組件的疲勞壽命。的集中質量的方法是,以獲得質量在各質量等級和耦合橫向和直接與質量水平在基部將採用計算結構響應連接旋轉彈簧。基於該2級可靠性理論整個離岸風力渦輪機系統的系統可靠性被認為是估計下地震載荷,風致波浪載荷以及在渦輪機結構的風載荷的系統的可靠性。 For offshore fixed wind turbine, stronger foundation like jacket structure has a good applicability for deeper water depth. Some recent studies have shown that offshore wind turbine with jacket support structure is a sensible choice for transitional depth ranged from 30m to 50m and a perfect replacement for monopile form because of a number of reasons as economic issue and resisting external loads better. The objective of this study is to conduct the reliability analysis of an offshore wind turbine system. The jacket support structure used in this study was transformed to an equivalent monopile form and simultaneously moved on shallow water depth. The lumped mass model is used to calculate fatigue life of each component. The lumped mass method is to obtain the mass at each mass level and the coupled transverse and rotational springs connected directly with mass level at base will be adopted to compute structural response. System reliability for the whole offshore wind turbine system based on the level 2 reliability theory is considered to estimate the system reliability under earthquake loading, wind-induced wave loads as well as the wind loading on the turbine structure. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/54373 |
全文授權: | 有償授權 |
顯示於系所單位: | 土木工程學系 |
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