Analysis of the Effects of Numerical Differentiation Methods on the Estimation of Longitudinal Stability and Control Derivatives of the Aircraft Mathematical Model
- Авторлар: Korsun O.N.1,2, Om M.H.2, Goro S.2
-
Мекемелер:
- State Scientific Research Institute of Aviation Systems
- Moscow Aviation Institute (National Research University)
- Шығарылым: Том 25, № 3 (2024)
- Беттер: 203-215
- Бөлім: Articles
- URL: https://journals.rcsi.science/2312-8143/article/view/327541
- DOI: https://doi.org/10.22363/2312-8143-2024-25-3-203-215
- EDN: https://elibrary.ru/VOAIZM
- ID: 327541
Дәйексөз келтіру
Толық мәтін
Аннотация
The estimation of the longitudinal stability and control derivatives of aircraft mathematical model was performed using the least square method, which requires the use of numerical differentiation. For the purpose of approximating the derivatives of pitch rate, the numerical differentiation methods such as: forward difference method, backward difference method, central difference method, combination of three finite difference methods “gradient” and Poplavsky method are applied. Based on the results that demonstrate the advantages and disadvantages of each of these methods, two approaches are proposed to ensure the improvement of the accuracy of the parameters estimation. The approach proposed in this paper combines the results obtained by separately using three finite difference methods to enhance of the accuracy of parameter estimation. This approach strengthens efficiency and compensates for weaknesses due to the nature and properties of finite difference methods.
Авторлар туралы
Oleg Korsun
State Scientific Research Institute of Aviation Systems; Moscow Aviation Institute (National Research University)
Хат алмасуға жауапты Автор.
Email: marmotto@rambler.ru
ORCID iD: 0000-0003-3926-1024
SPIN-код: 2472-6853
Doctor of Technical Sciences, Head of the Scientific and Educational Center, State Scientific Research Institute of Aviation Systems; Professor, Department of Design and Certification of Aircraft Engineering, Moscow Aviation Institute
Moscow, RussiaMoung Om
Moscow Aviation Institute (National Research University)
Email: mounghtangom50@gmail.com
ORCID iD: 0000-0002-7770-2962
Ph.D., Post-doctoral Candidate, Department of Design and Certification of Aircraft Engineering
Moscow, RussiaSekou Goro
Moscow Aviation Institute (National Research University)
Email: gorosekoi@gmail.com
ORCID iD: 0000-0002-4397-9429
Postgraduate Student, Department of Design and Certification of Aircraft Engineering
Moscow, RussiaӘдебиет тізімі
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