Analysis of the performance of a new concept for automatic draping of wide reinforcement fabrics with pre-shear: A virtual prototyping study

Krogh, Christian; Broberg, Peter H.; Hermansen, Sebastian M.; Olesen, Asbjørn M.; Bak, Brian L.V.; Lindgaard, Esben; Lund, Erik; Kepler, Jørgen; Jakobsen, Johnny

doi:10.1016/j.heliyon.2023.e20263

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…Material design variables are assigned to these regions, thus spanning the entire length of the blade in order to comply with manufacturing, where plies are draped from a roll, see e.g. Krogh et al (2023). The subsequent partitioning of the length of the blade creates a number of smaller domains, where the thickness design variables are associated, hence allowing the optimization to yield a variable-thickness design, see Fig.…”

Section: Modeling the Bladementioning

confidence: 99%

Multi-material and thickness optimization of a wind turbine blade root section

Hermansen,

Lund

2024

Struct Multidisc Optim

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Structural optimization has been shown to be an invaluable tool for solving large-scale challenging design problems, and this work concerns such optimization of a state-of-the-art laminated composite wind turbine blade root section. For laminated composites structures, the key design parameters are material choice, fiber orientation, stacking sequence, and layer thickness, however a framework for treating these simultaneously in optimization, on the current wind turbine blade scale, has not been demonstrated. Thus, the motivation and novelty of the present work is providing and demonstrating a general gradient-based approach applicable to wind turbine blades, where the key design parameters and structural criteria, i.e., buckling, static strength, and fatigue damage, are considered for multiple design load cases. The optimization framework is based on a variation of the Discrete Material and Thickness Optimization approach, where the thickness is directly parametrized, allowing for appropriately treating the sandwich parts of the blade. It is demonstrated how optimization leads to a design consisting of complex variable-thickness laminates, a good overall distribution of the structural criteria in the model, and a significant reduction in mass compared to the initial design.

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Section: Modeling the Bladementioning

confidence: 99%

Multi-material and thickness optimization of a wind turbine blade root section

Hermansen,

Lund

2024

Struct Multidisc Optim

Self Cite

View full text Add to dashboard Cite

show abstract

“…Material design variables are assigned to these regions, thus spanning the entire length of the blade in or-der to comply with the manufacturing, where plies are draped from a roll, see e.g. Krogh et al (2023). The subsequent partitioning of the length of the blade creates a number of smaller patches, where the thickness design variables are associated, hence allowing the optimization to yield a variable-thickness design, see Fig.…”

Section: Modeling the Bladementioning

confidence: 99%

Multi-material and thickness optimization of a wind turbine blade root section

Hermansen,

Lund

2023

Preprint

Self Cite

View full text Add to dashboard Cite

State-of-the-art wind turbines blades are large and complex structures, consequently making design challenging. The complexity is largely a result of using laminated composites which are high-performing and versatile materials, but also inhomogeneous hence exhibiting anisotropic behavior as well as challenging failure mechanisms. Structural optimization has been shown to be an invaluable tool for solving such challenging design problems, however a framework for treating all relevant parameters, i.e., material choice, fiber orientation, stacking sequence, and layer thickness, on the current scale is not available. Thus, the motivation of the present work is to present an overall gradient-based approach, where the key structural criteria are considered for multiple design load cases. The optimization framework is based on a variation of the Discrete Material and Thickness Optimization approach, where the thickness is directly parametrized, allowing for appropriately treating the sandwich parts of the blade. Application of the developed framework leads to an optimized design consisting of complex variable-thickness laminates, a good overall distribution of the structural criteria in the model, and a 23% reduction in mass compared to the initial design.

show abstract

Analysis of the performance of a new concept for automatic draping of wide reinforcement fabrics with pre-shear: A virtual prototyping study

Cited by 2 publications

References 21 publications

Multi-material and thickness optimization of a wind turbine blade root section

Multi-material and thickness optimization of a wind turbine blade root section

Multi-material and thickness optimization of a wind turbine blade root section

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