Print Email Facebook Twitter Preliminary aeroelastic design of composite wings with distributed electric propulsion Title Preliminary aeroelastic design of composite wings with distributed electric propulsion Author Wang, Z. (TU Delft Aerospace Structures & Computational Mechanics) Liu Xu, Vanessa Q. (Student TU Delft) De Breuker, R. (TU Delft Aerospace Structures & Computational Mechanics) Contributor Fajardo, Pablo (editor) Date 2022 Abstract In the development of electric aircraft, the use of distributed electric propulsion introduces a potential occurrence of propeller whirl flutter, which needs to be taken into account for wing structural design. To this end, this work extends an in-house aeroelastic optimization tool by means of including a post-processing procedure on whirl flutter analysis. In aeroelastic optimization, propellers are modeled as concentrated masses, and the wing mass is minimized by tailoring the lamination parameters and thickness of wing laminates subject to aerostructural design constraints. For the whirl flutter analysis of the optimized wing, a new aeroelastic model is built by coupling propeller motions and aerodynamic loads into wing aeroelastic model. The usefulness of the purposed approach is demonstrated using a numerical example, where the required inputs on propeller mounting properties are determined via a parametric study. The result indicates that flexibly mounting propellers on a flexible wing leads to the decrease of wing flutter speed, and it also confirms that the propeller mounting properties have a large influence on aeroelastic instability of the coupled propeller-wing system. Subject Aeroelastic optimizationcomposite wingsDEPelectric aircraftwhirl flutter To reference this document use: http://resolver.tudelft.nl/uuid:53e6cc0b-7ddf-4f89-a8b2-1104c38ec3db Publisher International Forum on Aeroelasticity and Structural Dynamics (IFASD) ISBN 9788409423538 Source Proceedings of the International Forum of Aeroelasticity and Structural Dynamics 2022, IFASD 2022 Event 19th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022, 2022-06-13 → 2022-06-17, Madrid, Spain Series Proceedings of the International Forum of Aeroelasticity and Structural Dynamics 2022, IFASD 2022 Part of collection Institutional Repository Document type conference paper Rights © 2022 Z. Wang, Vanessa Q. Liu Xu, R. De Breuker Files PDF IFASD_2022_041.pdf 1.14 MB Close viewer /islandora/object/uuid:53e6cc0b-7ddf-4f89-a8b2-1104c38ec3db/datastream/OBJ/view