声明
摘要
Abstract
Contents
Chapter 1．Introduction
1．1 Background and Significance
1．1．1 Background
1．1．2 Significance
1．2 Objectives
1．3 Scope
1．4 Literature Review
1．5 Structure of the Thesis
Chapter 2．Related Theories
2．1 Wind Turbines
2．1．1 Horizontal axis turbines
2．1．2 Wind turbine model and specs
2．2 Foundation of Wind Turbine
2．2．1 Monopile foundations
2．2．2 Steel pipe pile
2．3 Soil Mechanics
2．3．1 Mohr-Coulomb
2．3．2 Winkler model
2．4 Static Analysis
2．5 Dynamic Analysis
2．5．1 Wind load
2．5．2 Wave load
2．5．3 Implicit method
2．5．4 Modal analysis
2．5．5 Time history analysis
2．6 Finite Element Software(Adina)
2．6．1 ADINA in civil engineering
2．6．2 ADINA structures
2．6．3 ADINA modeler
Chapter 3．Static Analysis
3．1 Description of the Static Model
3．1．1 Pile modeling
3．1．2 Soil modeling
3．1．3 Soil-Pile contact modeling
3．2 Calculations and Results
3．2．1 The displacement of the monopile
3．2．2 Summary of the results for the numerical simulation of the monopile
3．2．3 Bending moment of the monopile
3．2．4 Soil deformation analysis
3．2．5 Step analysis
3．3 Summary
Chapter 4．Dynamic Analysis
4．1 Modal Analysis
4．1．1 Description of the model
4．1．2 Calculation of a monopile foundation in frequency mode
4．1．3 Consideration when adding 5 m depth ofwater to the model
4．2 Dynamic Response
4．2．1 Description of the model
4．2．2 Dynamic response under wind and wave loads
4．3 Summary
Chapter 5．Conclusions and Future Work
5．1 Conelusions
5．2 FutureⅥbrk
Recommendations
Referenees
Acknowledgment
作者简介
大连海事大学;
