Developing Simplified Models of Wind Turbine Blades

A Multi-scale Approach to Statistical and Model-based Structural Health Monitoring with Application to Embedded Sensing for Wind Energy

“…Recently, versions of this theory have been applied to model helicopter rotor blades [126] and wind turbine blades [127][128][129]. The theory supports geometric nonlinearities by maintaining a fixed inertial reference frame related through an orthogonal transformation to an initial beam configuration reference frame.…”

“…Because no small angle assumptions are used in these transformations, the representation of the deformed beam is geometrically nonlinear. This theory is generally applicable to slender, composite, beam-like structures, and it is well-suited to modeling the CX-100 blade described in earlier chapters [129]. Coupling the model-based state estimation approach presented here with techniques for uncertainty propagation would produce PDFs of state estimates that could be fed into probabilistic decision models.…”