請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/54373
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 羅俊雄(Chin-Hsiung Loh) | |
dc.contributor.author | Nguyen Van Vuong | en |
dc.contributor.author | 阮文王 | zh_TW |
dc.date.accessioned | 2021-06-16T02:53:13Z | - |
dc.date.available | 2015-07-20 | |
dc.date.copyright | 2015-07-20 | |
dc.date.issued | 2015 | |
dc.date.submitted | 2015-07-13 | |
dc.identifier.citation | REFERENCES
[1] IEC 16400-3 (2006) Design requirements for Offshore Wind Turbines (Draft) [2] Jan Van Der Tempel (2006) Design of Support Structures for Offshore Wind Turbines Offshore Engineering [3] Bendat, JS and Piersol, AG (1980) Engineering applications of correlation and spectral analysis A Wiley-Interscience Publication, New York [4] Francesco Petrini, Hui Li and Franco Bontempi (2010) Basis of design and numerical modeling of offshore wind turbines Structural Engineering and Mechanics, Vol. 36 [5] Jingpeng Hou, Zitang Sun, Yanxia Li (2012) Simulation of Turbulent Wind Velocity for Transmission Tower Based on Auto-Regressive Model Method School of Civil Engineering, Northeast Dianli University, Jilin, China [6] Yanzhong Ju, He Zhu, Jun-feng Bai (2008) The random vibration analysis of transmission tower based on wind power spectral density method Electric Power, Vol 41(4), pp. 35-38 [7] Yuanqi, Dong lin Shi (2001) Random wind load simulation and computer program for large-span spatial structures Spatial Structures, Vol 7(3), pp. 3-1 [8] Albermani F, Kitipornchai S (2003) Numerical simulation of structural behavior of transmission towers Thin-Wall Structure, Vol 41(2, 3), pp. 167-177 [9] Simiu, E. , Scanlan, R. H. (1986) Wind Effects on Structures J. Wiley & Son Inc. , New York [10] Jianfeng Bian, Demin Wei (2005) Wind velocity tine-history numerical simulation theories in long-span spatial structures Journal of Ji Nan University, Vol 26 (1), pp. 87-90 [11] Tony Burton, David Sharpe, Nick Jenkins, Ervin Bossanyi (2001) Wind Energy Handbook John Wiley & Son LTD, New York [12] Palle Thoft-Christensen, Michael J.Baker (1982) Structural Reliability Theory and its Applications Spring-Verlag, Berlin Heidelberg, New York [13] Z. Prucz, T. T. Soong (1983) Reliability and safety of tension leg platforms Deparment of Civil Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA [14] Pierson, W. J. and Moskowitz, L. (1964) A Proposed Spectral Form for Fully Developed Wind Seas based on the Similarity Theory of S. A. Kitaigordskii Journal of Geophysical Research, Vol. 69, No. 24 [15] Hasselmann, K. et al. Measurements of Wind-wave Growth and Swell Decay during the Joint North Sea Wave Project (JONSWAP) Deutsches Hydrographisches Zeitschrift, Hamburg, Reihe A [16] Kinsman, B. (1965) Wind Waves.Their Generation and Propagation on the Ocean Surface Prentice-Hall, Englewood Cliffs, N. J. [17] Morison, J. R., O’Brien, M. P., Johnson, J. W. and Schoaf, S. A. (1950) The Forces Exerted by Surface Waves on Piles Petroleum Transactions, AIME, Vol. 189 [18] Chakrabarti, S. K. (1971) Discussion on [12.25] Journal Eng. Mech. Div., ASCE, EM3 [19] Malhotra, A. K. and Penzien, J. (1970) Nondeterministic Analysis of Offshore Structures Journal Eng. Mech. Div. ASCE, EM6 [20] Molenaar, D-P, Dijkstra Sj (1999) Modeling the structural dynamics of flexible wind turbines In Proceedings of European Wind Energy Conference and Exhibition, Acropolis Convention Centre, Nice, France [21] Anil K.Chopra (2012) Dynamics of Structures Theory and Applications to Earthquake Engineering, Fourth Edition [22] Matsuiski, M, Endo, T (1969) Fatigue of metals subjected to varying stress Japan Soc. Mech. Eng [23] Dijk, GM van, Jonge, JB de (1975) Introduction to a fighter aircraft loading standard for fatigue evaluation - FALSTAFF National Aerospace Laboratory, NLR, MP75017U, Amsterdam, Holland [24] Zaaijer, MB (2000) Sensitivity analysis for foundations of offshore wind turbines Section Wind Energy, WE 02181, Delft [25] Shaw, VK (2004) Foundation model and design for offshore wind turbine monopiles Offshore Engineering, Delft University of Technology [26] American Petroleum Institute (2007) Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms – Working Stress Design RP 2A-WSD twenty first edition, Energy API [27] P. J. Tavner. et al. (2007) Reliability Analysis for Wind Turbines Wind Energy, Wiley Interscience [28] Adam Nieslony (2009) Determination of fragments of multiaxial service loading strongly influencing the fatigue of machine components Mechanical Systems and Signal Processing [29] T. Lagoda, P. Ogonowski (2005) Criteria of multiaxial random fatigue based on stress, strain, and energy parameters of damage in the critical plane Materialwissenschaft und Werkstofftechnik 36 [30] R.C. Rice, et al. (1988) Fatigue Design Handbook SAE, Warrendale [31] A. Nieslony, C.M. Sonsino (2008) Comparison of some selected multiaxial fatigue assessment criteria LBF Report No. FB-234, ISSN 0721-5320, Fraunhofer Gesellschaft, Germany | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/54373 | - |
dc.description.abstract | 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。 | zh_TW |
dc.description.abstract | 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. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T02:53:13Z (GMT). No. of bitstreams: 1 ntu-104-R02521266-1.pdf: 2355871 bytes, checksum: d6bf7bd4589dffd8bad41e4dbfbfd2d4 (MD5) Previous issue date: 2015 | en |
dc.description.tableofcontents | CONTENTS
CONTENTS iii LIST OF TABLES vii LIST OF FIGURES viii LIST OF SYMBOLS x 1. INTRODUCTION 1 1.1 Background 1 1.2 Motivation and Objective for the study 2 1.3 Scope of study 3 2. LITERATURE STUDY 5 2.1 Introduction 5 2.2 Stochastic or random processes 5 2.2.1 Introduction 5 2.2.2 Description of random data 5 2.2.3 Fourier series representation of random data 6 2.2.4 Time and frequency domain descriptions 7 2.3 Wind profiles and turbulence 8 2.3.1 Introduction 8 2.3.2 Basic wind characteristic 9 2.3.2.1 Wind general conditions 9 2.3.2.2 Average wind velocity 9 2.3.2.3 Turbulent wind power spectrum 10 2.3.3 Turbulent wind simulation using AR model 11 2.3.3.1 Covariance of turbulent wind velocity R (dt) 11 2.3.3.2 Regressive coefficient Ψ 12 2.3.3.3 Turbulent wind velocity 12 2.3.4 Wind load 12 2.4 Waves and currents 14 2.4.1 Sea-state model 14 2.4.1.1 Practical measures of sea-state 14 2.4.1.2 Practical spectral forms for water surface elevation, η(t) 15 2.4.2 Wave model 17 2.4.3 Currents 19 2.4.4 Loading model 20 2.4.4.1 Fluid loading 20 2.4.4.2 Other loading 22 2.5 Dynamics of offshore wind turbines 23 2.5.1 The basics of dynamics 23 2.5.1.1 Modal equations for damped system (harmonic forces) 23 2.5.1.2 Modal equations for damped system (earthquake excitation) 25 2.5.2 Structural damping matrix (Classical damping) 26 2.5.2.1 Rayleigh damping 27 2.5.2.2 Caughey damping 27 2.6 Levels of reliability methods 28 2.6.1 Level I 28 2.6.2 Level II 28 2.6.3 Level III 29 2.6.4 Level IV 29 2.7 Fundamentals of structural fatigue analysis 30 2.7.1 Introduction 30 2.7.2 Stages of fatigue failure 31 2.7.2.1 Stage 1: start of crack 31 2.7.2.2 Stage 2 31 2.7.2.3 Stage 3 31 2.7.3 Methods of fatigue analysis 31 2.7.3.1 Method based on fatigue tests 31 2.7.3.2 Method based on Fracture Mechanics 32 2.7.4 Rainflow method 32 2.7.5 Estimation of mean fatigue life 33 2.7.5.1 Mean value of cumulative fatigue damage during 1 year 33 2.7.5.2 Expected lifetime 33 2.8 Foundation modeling 34 2.8.1 Transfer of horizontal loads, vertical loads and moments 34 2.8.2 Stiffness matrix model for foundation representation 34 3. MODEL DESCRIPTION 36 3.1 Lumped mass model 36 3.2 Materials 37 3.3 Static condensation 38 3.4 Mode shape 39 4. RELIABILITY ANALYSIS 41 4.1 General equations of motion 41 4.1.1 Damping matrix 42 4.1.2 Stiffness matrix 43 4.1.2.1 Structural stiffness matrix 43 4.1.2.2 Soil-spring stiffness matrix 43 4.2 Modal analysis 44 4.3 Solution strategy 45 4.4 Bending stress 46 4.5 Reliability index 47 5. FATIGUE ANALYSIS 49 5.1 Rainflow counting 49 5.2 Results 49 5.2.1 Rainflow matrix 50 5.2.2 Mean value 50 5.2.3 Amplitude 50 5.2.4 Fatigue life assessment 51 6. DISCUSSION 52 7. CONCLUSION 54 8. REFERENCES 56 | |
dc.language.iso | en | |
dc.title | 海域風機結構之疲勞及可靠度分析 | zh_TW |
dc.title | Fatigue & Reliability Analysis
of Offshore Wind Turbine Structure | en |
dc.type | Thesis | |
dc.date.schoolyear | 103-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 田堯彰(R.Y. Tan),呂良正(Liang-Jenq Leu) | |
dc.subject.keyword | 海上風力發電機組,夾克支撐結構,可靠性分析,疲勞壽命, | zh_TW |
dc.subject.keyword | Offshore wind turbine,Jacket support structure,Reliability analysis,Fatigue life, | en |
dc.relation.page | 86 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2015-07-13 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
顯示於系所單位: | 土木工程學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-104-1.pdf 目前未授權公開取用 | 2.3 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。