.. _sed_input-files: Input and Output Files ====================== Units ----- SED uses the SI system (kg, m, s, N). .. _sed_input-file: Input file ---------- .. code:: ------- SIMPLIFIED ELASTODYN INPUT FILE ---------------------------------------- Comment ---------------------- SIMULATION CONTROL -------------------------------------- False Echo - Echo input data to ".ech" (flag) 3 Method - Integration method: {1: RK4, 2: AB4, or 3: ABM4} (-) "default" DT - Integration time step (s) ---------------------- DEGREES OF FREEDOM -------------------------------------- True GenDOF - Generator DOF (flag) ---------------------- INITIAL CONDITIONS -------------------------------------- 0 Azimuth - Initial azimuth angle for blades (degrees) 0 BlPitch - Blades initial pitch (degrees) 0.0 RotSpeed - Initial or fixed rotor speed (rpm) 0 NacYaw - Initial or fixed nacelle-yaw angle (degrees) 0 PtfmPitch - Fixed pitch tilt rotational displacement of platform (degrees) ---------------------- TURBINE CONFIGURATION ----------------------------------- 3 NumBl - Number of blades (-) 63 TipRad - The distance from the rotor apex to the blade tip (meters) 1.5 HubRad - The distance from the rotor apex to the blade root (meters) -2.5 PreCone - Blades cone angle (degrees) -5.0191 OverHang - Distance from yaw axis to rotor apex [3 blades] or teeter pin [2 blades] (meters) -5 ShftTilt - Rotor shaft tilt angle (degrees) 1.96256 Twr2Shft - Vertical distance from the tower-top to the rotor shaft (meters) 87.6 TowerHt - Height of tower above ground level [onshore] or MSL [offshore] (meters) ---------------------- MASS AND INERTIA ---------------------------------------- 115926 RotIner - Rot inertia about rotor axis [blades + hub] (kg m^2) 534.116 GenIner - Generator inertia about HSS (kg m^2) ---------------------- DRIVETRAIN ---------------------------------------------- 100 GBoxEff - Gearbox efficiency (%) 97 GBRatio - Gearbox ratio (-) ---------------------- OUTPUT -------------------------------------------------- OutList - The next line(s) contains a list of output parameters. See OutListParameters.xlsx for a listing of available output channels, (-) "Azimuth" - Blades azimuth angle "RotSpeed" - Low-speed shaft rotational speed "RotAcc" - Low-speed shaft rotational acceleration END of input file (the word "END" must appear in the first 3 columns of this last OutList line) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- .. _sed_outputs: Outputs ------- The write outputs are: - "Azimuth" : Blades azimuth angle (deg) between 0 and 2pi - "RotSpeed": Low-speed shaft rotational speed (rpm) - "RotAcc": Low-speed shaft rotational acceleration (rad/s^2) - "GenSpeed": High-speed shaft rotational speed (rpm) - "GenAcc": High-speed shaft rotational acceleration (rad/s^2)