【文章內(nèi)容簡(jiǎn)介】 ..................... 47 深海風(fēng)機(jī)浮式支撐結(jié)構(gòu)整體有限元模型的建立 ........................................... 47 正常工作狀態(tài)下浮式風(fēng)機(jī)支撐結(jié)構(gòu)的關(guān)鍵技術(shù)分析 ................................... 50 環(huán)境載荷的輸入 ................................................................................................ 52 浮式風(fēng)機(jī)整體位移分析 ................................................................................... 53 浮式風(fēng)機(jī)穩(wěn)定性初步分析 ................................................................................ 55 整體結(jié)構(gòu)關(guān)鍵部位結(jié)構(gòu)強(qiáng)度初步分析 .......................................................... 56 錨鏈強(qiáng)度初步分析 ............................................................................................. 58 發(fā)電功率 ............................................................................................................... 59 50 年一遇海洋環(huán)境載荷下浮式風(fēng)機(jī)支撐結(jié)構(gòu)的關(guān)鍵技術(shù)分析 .................. 60 環(huán)境載荷的輸入 .................................................................................................. 60 浮式風(fēng)機(jī)整體位移分析 .................................................................................... 60 浮式風(fēng)機(jī)穩(wěn)定性初步分析 ................................................................................ 61 整體強(qiáng)度初步分析 ............................................................................................. 61 錨鏈強(qiáng)度初步分析 ............................................................................................. 63 浮式風(fēng)機(jī)工作和停機(jī)狀態(tài)的對(duì)比 .................................................................. 64 本章小結(jié) ........................................................................................................... 64 第五章 海上浮式風(fēng)機(jī)動(dòng)態(tài)特性分析 ................................................................... 65 概述 ................................................................................................................... 65 海上浮式風(fēng)機(jī)整體有限元模態(tài)分析 ............................................................... 65 模態(tài)分析有限元基本理論 ................................................................................ 65 共振分析 ............................................................................................................... 66 風(fēng)和波浪載荷對(duì)海上浮式平臺(tái)的影響 .................................................................. 70 海上浮式平臺(tái)相同風(fēng)速不同波高環(huán)境載荷條件 ......................................... 71 海上浮式平臺(tái)相同波高不同風(fēng)速環(huán)境載荷條件 ......................................... 74 本章小結(jié) .......................................................................................................... 77 VI 目錄 第六章 總結(jié)和展望 ............................................................................................... 78 本文總結(jié) ........................................................................................................... 78 研究工作展望 ................................................................................................... 79 參考文獻(xiàn) ................................................................................................................. 80 攻讀碩士學(xué)位期間所發(fā)表的學(xué)術(shù)論文 ................................................................. 84 致 謝 ....................................................................................................................... 85 VII 江蘇科技大學(xué)碩士論文 VIII Contents Contents Abstract ...........................................................................................................................I Abstract ........................................................................................................................ III Chapter 1 Exordium ....................................................................................................... 1 Research background and significance of floating platform ............................... 1 The present situation of deepsea offshore wind turbine ..................................... 2 Prospect of offshore wind turbine at abroad ................................................. 2 Prospect of offshore wind turbine at home.................................................... 6 The research content and innovative points ......................................................... 9 The research content ...................................................................................... 9 Innovative points ......................................................................................... 10 Chapter 2 Theoretical basis of supporting structure .................................................... 11 Environmental load theory of supporting structure of deepsea floating wind turbine 11 The aerodynamics theory ............................................................................ 11 Theoretical calculation of wave load .......................................................... 14 Equation of motion ...................................................................................... 14 Environmental load based on IEC ..................................................................... 15 Wind ............................................................................................................ 16 Ocean conditions ......................................................................................... 24 Other environmental conditions .................................................................. 26 Chapter summary................................................................................................ 26 Chapter 3 Preliminary concept design of support structure of floating wind turbine . 27 Summary............................................................................................................. 27 Introduction of SAMCEF for