To read the full version of this content please select one of the options below:

Mathematical model of one flexible transport category aircraft

Marcelo Santiago Sousa (Institute of Mechanical Engineering (IEM), Federal University of Itajubá (UNIFEI), Itajubá, Brazil)
Pedro Paglione (Technological Institute of Aeronautics (ITA), São José dos Campos, Brazil)
Roberto Gil Annes Silva (Technological Institute of Aeronautics (ITA), São José dos Campos, Brazil)
Flavio Luiz Cardoso-Ribeiro (Technological Institute of Aeronautics (ITA), São José dos Campos, Brazil)
Sebastião Simões Cunha Jr (Institute of Mechanical Engineering (IEM), Federal University of Itajubá (UNIFEI), Itajubá, Brazil)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 2 May 2017

345

Abstract

Purpose

The purpose of this paper is to present a mathematical model of one very flexible transport category airplane whose structural dynamics was modeled with the strain-based formulation. This model can be used for the analysis of couplings between the flight dynamics and structural dynamics.

Design/methodology/approach

The model was developed with the use of Hamiltonian mechanics and strain-based formulation. Nonlinear flight dynamics, nonlinear structural dynamics and inertial couplings are considered.

Findings

The mathematical model allows the analysis of effects of high structural deformations on airplane flight dynamics.

Research limitations/implications

The mathematical model has more than 60 degrees of freedom. The computational burden is too high, if compared to the traditional rigid body flight dynamics simulations.

Practical implications

The mathematical model presented in this work allows a detailed analysis of the couplings between flight dynamics and structural dynamics in very flexible airplanes. The better comprehension of these couplings will contribute to the development of flexible airplanes.

Originality/value

This work presents the application of nonlinear flight dynamics-nonlinear structural dynamics-strain-based formulation (NFNS_s) methodology to model the flight dynamics of one very flexible transport category airplane. This paper addresses also the way as the analysis of results obtained in nonlinear simulations can be made. Comparisons of the NFNS_s and nonlinear flight dynamics-linear structural dynamics methodologies are presented in this work.

Keywords

Citation

Sousa, M.S., Paglione, P., Silva, R.G.A., Cardoso-Ribeiro, F.L. and Cunha, S.S. (2017), "Mathematical model of one flexible transport category aircraft", Aircraft Engineering and Aerospace Technology, Vol. 89 No. 3, pp. 384-396. https://doi.org/10.1108/AEAT-12-2013-0230

Publisher

:

Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

Related articles