The Local Search-Based Genetic Algorithm in Aircraft Trim

Yigit, Tolga; Millidere, Murat

doi:10.2514/6.2021-2999

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Combining appropriate control surface deflections and aircraft states to allow the aircraft to carry out the specified flight task can be a definition of trimming an aircraft [32]. The aircraft trim problem has been solved using an optimization approach for years and is still discussed with various optimization methods as well as under different flight circumstances [33][34][35][36][37]. However, the stick-free level flight trim algorithm has been never discussed, and no open public study exists.…”

Section: Stick-free Level Flight Trim Algorithmmentioning

confidence: 99%

Stick-free Flight Stability Problem Revisited: A Modeling and Simulation Approach

Altunkaya¹,

OZKOL²

2022

Preprint

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The stick-free flight stability is an old-fashioned and non-progressive issue; nevertheless, it is still existent, and of significant importance to the design of aircraft whose control system is reversible. The problem’s existence necessitates a deep assessment of stick-free flight stability throughout the aircraft design. Up to now, this problem has been addressed using either analytical approaches, which are only related to the static stability evaluation, or performing flight tests. In this study, the problem is handled in its entirety, from static and dynamic flight stability assessment to design criteria with a comprehensive perspective. Moreover, it is also exhibited that contrary to what has been generally proposed in the literature, limiting the problem of stick-free flight stability through static stability assessment is far from the main challenge. As a brief scope, the derivation of the control surface dynamics, a stick-free trim algorithm, and assessment rationale of the stick-free static and dynamic flight stability using a simulation approach are proposed. As a consequence, the aim is to set a broad understanding for designers related to this phenomenon and add adjunct design criteria in the design optimization process by approaching it in terms of modeling, simulation, and flight test perspective.

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Section: Stick-free Level Flight Trim Algorithmmentioning

confidence: 99%

Stick-free Flight Stability Problem Revisited: A Modeling and Simulation Approach

Altunkaya¹,

OZKOL²

2022

Preprint

View full text Add to dashboard Cite

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Large Civil Aircraft Nonlinear Flight Dynamics Iteration Trim Method Based on the Downhill Simplex Optimization Algorithm

Cai

Yang

Zhang

et al. 2022

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE)

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Stick-Free Flight Stability Problem Revisited: A Modeling and Simulation Approach

Altunkaya

Özkol

2023

Aerospace

View full text Add to dashboard Cite

The stick-free flight stability is an old-fashioned and non-progressive issue; nevertheless, it is still existent and of significant importance to the design of aircraft whose control system is reversible. The existence of the problem necessitates a deep assessment of stick-free flight stability throughout the aircraft design. Up to now, this problem has been addressed using either analytical approaches, which are only related to the static stability evaluation, or performing flight tests. In this study, the problem is handled in its entirety, from static and dynamic flight stability assessment to design criteria with a comprehensive perspective. Moreover, it is also exhibited that, contrary to what has been generally proposed in the literature, the limitation of the problem of stick-free flight stability through static stability assessment is far from being the main challenge. As a brief scope, the derivation of the control surface dynamics, a stick-free trim algorithm, and assessment rationale of the stick-free static and dynamic flight stability using a simulation approach are proposed. As a consequence, the aim is to set a broad understanding for designers related to this phenomenon and add adjunct design criteria in the design optimization process by approaching it from a modeling, simulation, and flight test perspective.

show abstract

The Local Search-Based Genetic Algorithm in Aircraft Trim

Cited by 3 publications

References 3 publications

Stick-free Flight Stability Problem Revisited: A Modeling and Simulation Approach

Stick-free Flight Stability Problem Revisited: A Modeling and Simulation Approach

Large Civil Aircraft Nonlinear Flight Dynamics Iteration Trim Method Based on the Downhill Simplex Optimization Algorithm

Stick-Free Flight Stability Problem Revisited: A Modeling and Simulation Approach

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