Course Overview
The purpose of this subject is to provide the theoretical basis and application of the methodology for integrated dynamic analysis of offshore wind turbines in operational and survival conditions.
Course Highlights
Relevant loads from waves and wind as well as relevant internal wind turbine faults in the mechanical or electrical system are taken into account. Structural models are based on the finite element method. State-of-the-art models of aerodynamics and hydrodynamics will be presented and their coupled effect on dynamic responses of both bottom-fixed and floating wind turbines will be emphasized. Both steady-state and transient loads and load effects will be discussed.
MAIN GOAL
The focus in this subject is to give the theoretical basis for key software, such as SIMA, OpenFAST, or HAWC2, in this area and to apply these concepts through project work. Additional topics in wind turbine analysis, such as operations and maintenance, drivetrain mechanics, and experimental testing will also be discussed.
Learning Outcomes
After completion of this course, you will gain the ability to:
- + Understand the basic BEM theory, airfoil theory, and relevant engineering corrections for aerodynamic load calculation.
- + Understand important wave loads for different types of substructures and how these are estimated numerically
- + Understand the objectives and basic concepts of wind turbine control.
- + Be able to set up the equation of motion and explain how it is solved numerically.
- + Be able to explain the different loading sources and their coupled effects on dynamic responses of bottom-fixed and floating wind turbines, including interpretation of response spectra.
- + Understand transient load effects from fault situations and their consequences.
- + Be able to explain concepts of high-speed, medium-speed, and low-speed gearboxes, and which loads are important for these components.
- + Understand the challenges and numerical modelling of marine operations for wind turbine installation.
- + Be able to explain the challenges in scaling experimental models and some possible approaches.
- + Understand the concepts of theoretical upscaling and their limitations.
- + Be able to carry out numerical simulations of wind turbines in SIMA and interpret the results.
Meet Your Instructors
Course coordinator
Admissions
Entry Requirements
- + TMR4190 Finite Element Methods in Structural Analysis
- + TMR4182 Marine Dynamics
- + TMR4215 Sea Loads or equivalent background
Teaching and Assessment Methods
- + Lectures
- + Project work in groups
Application Deadline: TBC.
Practical Notes
- + Nielsen, F.G. Offshore Wind Energy: Environmental Conditions and Dynamics of Fixed and Floating Turbines, Cambridge Univ. Press, 2024.
- + Twidell, J. and Gaudiosi, G. Offshore Wind Power, Multiscience Publishing, Brentwood, UK, 2009.
- + Moan, T. Finite Element Modelling and Analysis of Marine Structures, September 2003, Dept. of Marine Technology, NTNU.
- + Hansen, M.O.L. Aerodynamics of Wind Turbines, Earthscan, London, 2008.
- + Faltinsen, O.M. Sea Loads on Ships and Offshore Structures, Cambridge Univ. Press, 1990.
- + Næss, A and Moan, T. Stochastic Dynamics of Marine Structures, Cambridge Univ. Press, 2013.
- + Required reading consists of selected parts of textbooks listed above along with lecture notes and presentations.
Fees & Funding
Tuition Fees
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Course Info
Contact Erin Bachynski-Polić for any additional information relating to this course.