Stability analysis for an UAV model in a longitudinal flight
Journal Title: INCAS BULLETIN - Year 2017, Vol 9, Issue 4
Abstract
The paper presents the stability analysis of the equilibria in a longitudinal flight of an unmanned aircraft with constant forward velocity. The motion of the aircraft is described using delay differential equations with constant delays, the delay being considered in flight control compartment. The goal is to study the effects of the delays for the stability of the equilibrium points. It is eventually proved that a Hopf bifurcation appears.
Authors and Affiliations
Ana-Maria BORDEI, Andrei HALANAY
Keywords
Related Articles
- EP ID EP294204
- DOI 10.13111/2066-8201.2017.9.4.3
- Views 73
- Downloads 0
Prediction of Broadband Noise from Symmetric and Cambered Airfoils
Aerodynamic sound generation and self-noise mechanisms from lifting surfaces such as airfoil involve the fields of classical acoustics and fluid mechanics. In this paper, trailing edge noise production is evaluated using...
A two-dimensional linear elasticity problem for anisotropic materials, solved with a parallelization code
The present paper introduces a numerical approach of static linear elasticity equations for anisotropic materials. The domain and boundary conditions are simple, to enhance an easy implementation of the finite difference...
Model for self-assessment of an organization’s ability to achieve sustained success
This paper aims to present a model for self-assessment to review the extent to which the organization has adopted the concepts described in ISO 9004:2018 international standard. The self-assessment is used to identify im...
Aerodynamic Interference between Oscillating Lifting Surfaces and Fuselage. Part 4: Flapping and Pitching WingsLaws for Micro-Air Vehicles (MAV) in Straight Flight
In the fourth article of our series we continue to deal with the calculation of the aerodynamic unsteady forces on lifting surfaces. Now we present some applications of the theory discussed in the previous papers to the...
Direct spatial motion simulation of aircraft subjected to engine failure
This paper presents a simulation of the movement of an aircraft that has an engine malfunction. The nonlinear equations of motion are formulated taking into account the yawing moment which is generated and occurs due to...