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Aircraft performance optimization using fish-like locomotion
Pourtakdoust, S. H ; Sharif University of Technology | 2008
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- Type of Document: Article
- DOI: 10.2514/6.2008-6879
- Publisher: American Institute of Aeronautics and Astronautics Inc , 2008
- Abstract:
- In this article, an optimal maneuver structure is proposed to improve the cruise fuel consumption performance of a transport category aircraft. The maneuver is taken by analogy to the natural phenomena of fish movement in the water. By using fish-like locomotion and implementing it on a transport category aircraft, better performance economy has been realized in cruise flight. The maneuver structure and the required control actions are extracted using optimal control theory. The power required during a specified cruise time span is taken as the merit function in the optimal control formulation. The cost savings associated with this type of optimized periodic maneuver during cruise is compared with similar costs in the classical non-optimal cruise flight as well as with the non-periodic optimal cruise flight. In addition, to minimize passenger discomfort during the proposed maneuvering cruise flight a secondary cost related to the passenger's comfort has been introduced and augmented to the power-required cost function to assure a more satisfactory ride quality. Results of the proposed optimal periodic maneuver, in terms of the required flight controls and their associated costs are presented with and without passenger comfort consideration. Copyright © 2008 by mortazavi
- Keywords:
- Aircraft ; Cost functions ; Fish ; Structural optimization ; Aircraft performance ; Associated costs ; Control actions ; Natural phenomena ; Optimal control theory ; Optimal controls ; Passenger comfort ; Passenger discomfort ; Vehicle performance
- Source: AIAA Atmospheric Flight Mechanics Conference and Exhibit ; 2008 ; 9781563479458 (ISBN)
- URL: https://arc.aiaa.org/doi/10.2514/6.2008-6879