FAST & HydroDyn - NREL

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National Renewable Energy Laboratory 6 Innovation for Our Energy Future <strong>FAST</strong> Overview Basic Theory (any questions)
<strong>FAST</strong> Overview Basic Theory (cont) • Combined modal & multi-body dynamics formulation: – Modal: blades, tower – Multi-body: support platform, base plate, nacelle, generator, gears, hub, tail • Mode shapes specified as 6 th order polynomials • Utilizes relative DOFs: – No constraint equations – ODEs instead of DAEs • Equations of motion (EoMs) are derived & implemented using Kane’s Method • EoM Form: ( ) ( d ) M q,u,t q + f q,q,u,u ,t = 0 • Uses the 4 th order Adams-Bashforth-Adams-Moulton (ABAM) predictor-corrector fixed-step-size integration scheme: – Initialized using 4 th order Runge-Kutta scheme National Renewable Energy Laboratory 7 Innovation for Our Energy Future
Page 1 and 2: FAST & HydroDyn TurbSim & Design Co
Page 3 and 4: FAST Overview What Is It • Struct
Page 5: FAST Overview Turbine Configuration
Page 9 and 10: National Renewable Energy Laborator
Page 11 and 12: FAST Overview Modes of Operation Na
Page 15 and 16: FAST Overview Simulation - Interfac
Page 17 and 18: FAST Overview Modes of Operation Na
Page 19 and 20: FAST Overview Linearization - Calcu
Page 23 and 24: FAST Overview Sample Models Provide
Page 25 and 26: HydroDyn Overview Monopiles • Wav
Page 31 and 32: HydroDyn Overview Floating Platform
Page 33 and 34: Planned Work • Interface to overh
Page 35: Questions Jason Jonkman +1 (303) 38

FAST & HydroDyn - NREL

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