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Design optimization of a wind turbine blade under non-linear transient loads using analytic gradients
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Design optimization of a wind turbine blade under non-linear transient loads using analytic gradients
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Journal Article
Design optimization of a wind turbine blade under non-linear transient loads using analytic gradients
2020
Overview
This work presents and compares two formulations for the co-design optimization of a wind turbine blade under non-linear transient loads: the Nested Analysis and Design (NAND) and the Simultaneous Analysis and Design (SAND) approaches. Analytic sensitivies are used in order to ensure the convergence of the optimization within reasonable computational resources. The two formulations are compared on a mass minimization problem with dynamic constraints, solved with the interior-point method in IPOPT, for a gust input and a turbulent input. Results shows that the NAND and SAND approaches converge towards the same optimum with similar performances. The SAND approach benefits from a simpler design sensitivity analysis and a sparse jacobian of the constraints.
Publisher
IOP Publishing
Subject
