4.5. BeamDyn User Guide and Theory Manual
This document offers a quick reference guide for the BeamDyn software program. It is intended to be used by the general user in combination with other OpenFAST manuals. The manual will be updated as new releases are issued and as needed to provide further information on advancements or modifications to the software. For reference, additional materials such as presentation slides, development plans, and publications can be downladed from the list below.
The authors are grateful to the U.S. Department of Energy Wind and Water Power Program and the NREL Laboratory Directed Research and Development (LDRD) program through the grant “High-Fidelity Computational Modeling of Wind-Turbine Structural Dynamics” for supporting the development of this software.
- 4.5.1. Introduction
- 4.5.2. Running BeamDyn
- 4.5.3. Input Files
- 4.5.4. Output Files
- 4.5.5. BeamDyn Theory
- 4.5.5.1. Coordinate Systems
- 4.5.5.2. Geometrically Exact Beam Theory
- 4.5.5.3. Numerical Implementation with Legendre Spectral Finite Elements
- 4.5.5.4. Wiener-Milenković Rotation Parameter
- 4.5.5.5. Linearization Process
- 4.5.5.6. Damping Forces and Linearization
- 4.5.5.7. Convergence Criterion and Generalized-\(\alpha\) Time Integrator
- 4.5.5.8. Calculation of Reaction Loads
- 4.5.5.9. Calculation of Blade Loads
- 4.5.6. Future Work
- 4.5.7. References
- 4.5.8. Appendix