2.1 Nomenclature
2.1.1 Acronyms BDB - Blade database CM - Center of mass CP - Power coefficient DLC - Design Load Case FEM - Finite element method LAT - Lowest astronomical tide MSL - Mean Sea Level PID - Proportional-integral-derivative RNA - Rotor-nacelle assembly SSL - Standard sea-level conditions SWL - Still water level TM - Theory manual UM - User manual VSPR - Variable-speed pitch-regulated WT - Wind turbine
2.1.2 Terminology Aerodynamical reference point Angle of attack Aspect ratio Blade aerodynamical station Blade length Blade reference line Blade shape Chord length Chordline midpoint Fields In-plane Influence length Load case Load case set Out-of-plane Pitch Pitch axis Scalar Sensor Time simulation job Twist Blade shape twist Blade structure twist Frame element twist Wind angle
2.1.3 List of symbols
2.1.4 Abbreviations
2.2 Aerodynamics
2.2.1 Wind Wind profile power law Weibull distribution Turbulence IEC extreme events Stepwise Wind Linear wind
2.2.2 Aerodynamic loads BEM algorithm Steady BEM Unsteady BEM Aerodynamic Loads on Support section elements - Aero drag loads Aerodynamic Loads on Nacelle and Hub Viterna extrapolation Tower shadow Interpolation of aerodynamic coefficients
2.3 Oceanography
2.3.1 Water particle kinematics Regular waves Irregular waves Stream function waves Currents
2.3.2 Hydrodynamic loads MacCamy-Fuchs
2.3.3 Wave spectrum input file
2.4 Structural modeling
2.4.1 Catenary lines
2.4.2 FEM code Time domain simulation Linear analysis Damping How to use Rayleigh damping Stresses and responses
2.5 Geotechnical modeling
2.5.1 Linear springs
2.5.2 Damping - dashpots
2.5.3 Nonlinear springs
2.5.4 Hysteresis
2.6 Control theory
2.6.1 Variable speed generator
2.7 Fatigue analysis
2.7.1 Eurocode1993 S-N curves
2.8 Plugins
2.8.1 Xfoil