Projects per year
Abstract
Beyond aerodynamic stall, the analysis of aircraft flight requires models accurately representing nonlinearities and instabilities. Previous bifurcation analysis studies therefore had a priori knowledge of the aircraft dynamics including dynamic damping. Yet, unlike airliners, extensive wind-tunnel tests and high-fidelity models are rarely available for small unmanned aircraft. Instead, continuous fluid dynamic simulations may provide basic insights into the aerodynamics, however limited to static conditions. In this paper, bifurcation analysis is presented as a tool to discuss the effects of unidentified pitch-damping dynamics during deep-stall transition that allows development of a nonlinear pitch-damping model for a small unmanned aircraft. By preliminary study of the static case, the model is extended based on deep-stall flight data to predict dynamics and stability. As a result, the deep-stall modes of the extended model are investigated in full envelope.
Original language | English |
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Journal | Journal of Aircraft |
Volume | 57 |
Issue number | 1 |
Pages (from-to) | 143–155 |
Number of pages | 13 |
ISSN | 0021-8669 |
DOIs | |
Publication status | Published - 2020 |
Fingerprint
Dive into the research topics of 'Dynamic stability analysis of aircraft flight in deep-stall'. Together they form a unique fingerprint.Projects
- 1 Finished
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AutoDescent: Automated precision drone descent on moving targets
Nielsen, E., la Cour-Harbo, A., Jakobsen, J. & Totu, L. C.
01/01/2015 → 30/06/2018
Project: Research
Activities
- 1 Hosting a guest lecturer
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Torbjørn Cunis
Anders La Cour-Harbo (Host)
19 Jun 2018 → 21 Jun 2018Activity: Hosting a guest lecturer
Equipment
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Drone Research Lab
Anders la Cour-Harbo (Manager), Simon Jensen (Operator), Frank Høgh Rasmussen (Other), Jesper Dejgaard Meyer (Other), Aitor Ramirez Gomez (Other), O. M. Bektash (Other), Tobias Leth (Other), Luminita Cristiana Totu (Other), Jacob Naundrup Pedersen (Other), Stefano Primatesta (Other), Petr Gabrlik (Other) & Morten Bisgaard (Operator)
Department of Electronic SystemsFacility: Testing facility