Flutter Predictions in the Design of Extreme-Scale Segmented Ultralight Morphing Rotor Blades


With the increase in demand for and reduction in costs of clean energy, wind turbines offer a very promising solution. However, to make offshore wind energy one of the preferred sources of clean energy, there is a need to bring down the levelized cost of energy (LCOE). The Segmented Ultralight Morphing Rotor (SUMR) project aims to achieve lower costs with the development of an extreme-scale 50-MW wind turbine having blade lengths greater than 200 meters. With the increase in rotor size, aero-elastic instabilities like flutter become a significant issue and begin to drive the design process. In this paper, we evaluate the flutter margin for a series of 13.2-MW wind turbine blade designs and compare to previous studies. Then, a semi-automated design tool called AutoNuMAD is introduced to explore the structural design space.

AIAA Scitech 2019 Forum
Mayank Chetan
Mayank Chetan
Wind Energy Researcher

Current research interests include wind turbine structures, aero-elasticity and loads analysis.