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 Parameter tag 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 Glauert correction DMST algorithm Aerodynamic Loads on Support section elements - Aero drag loads Aerodynamic Loads on Nacelle and Hub Viterna extrapolation Tower shadow models Potential flow tower shadow model Powles tower shadow model Interpolation of aerodynamic coefficients
2.3 Oceanography
2.3.1 Water particle kinematics Regular waves Irregular waves Stream function waves Currents
2.3.2 Wave loads Morison equation MacCamy-Fuchs Potential flow theory
2.3.3 Buoyancy
2.3.4 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 Soil stiffness
2.5.2 Linear springs
2.5.3 Damping - dashpots
2.5.4 Nonlinear springs
2.5.5 Hysteresis
2.6 Control theory
2.6.1 Variable speed generator
2.7 Fatigue analysis
2.7.1 Fatigure analysis procedure
2.7.2 Eurocode1993 S-N curves
2.8 Plugins
2.8.1 Xfoil