Effects of the Wind Field on the Synthetic Measurement of the Aerodynamic Angles of an Aerial Vehicle

The estimation of the angle of attack and sideslip angle is of fundamental importance for the situational awareness of an aerial vehicle. Historically, several accidents occurred due to failures of the traditional protruding probes applied to measure these two angles. The MIDAS project aims to design and develop a certifiable Air Data System capable of providing the entire set of Air Data, integrating a synthetic estimation of the aerodynamic angles. All operating conditions shall be taken into account, even those related to atmospheric phenomena. The wind effects (both steady and unsteady) represent a very challenging topic when design a synthetic sensor because of its intrinsic nature. In fact, the airflow surrounding the AC can be affected by several phenomena with a very wide range of characteristics (e.g. speed and direction range) that can be hardly simulated during the design stage. It is clear that the atmosphere condition (both steady and unsteady) can affect this particular kind of sensor, and it must be analysed the error in the presence of the wind. The paper shows the estimation error due to the steady wind field and correction to be applied to previous synthetic sensors design in order to be reliable both in still air and in presence of the wind.

Effects of the Wind Field on the Synthetic Measurement of the Aerodynamic Angles of an Aerial Vehicle / Brandl, Alberto; Battipede, Manuela. - (2020), pp. 181-186. ((Intervento presentato al convegno IEEE 7th International Workshop on Metrology for AeroSpace (MetroAeroSpace) nel 22-24 June, 2020.

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Titolo: Effects of the Wind Field on the Synthetic Measurement of the Aerodynamic Angles of an Aerial Vehicle
Autori: 
BRANDL, ALBERTO
BATTIPEDE, MANUELA
Data di pubblicazione: 2020
Abstract: The estimation of the angle of attack and sideslip
angle is of fundamental importance for the si...tuational awareness
of an aerial vehicle. Historically, several accidents occurred due to
failures of the traditional protruding probes applied to measure
these two angles. The MIDAS project aims to design and develop
a certifiable Air Data System capable of providing the entire set
of Air Data, integrating a synthetic estimation of the aerodynamic
angles. All operating conditions shall be taken into account,
even those related to atmospheric phenomena. The wind effects
(both steady and unsteady) represent a very challenging topic
when design a synthetic sensor because of its intrinsic nature. In
fact, the airflow surrounding the AC can be affected by several
phenomena with a very wide range of characteristics (e.g. speed
and direction range) that can be hardly simulated during the
design stage. It is clear that the atmosphere condition (both steady
and unsteady) can affect this particular kind of sensor, and it
must be analysed the error in the presence of the wind. The
paper shows the estimation error due to the steady wind field
and correction to be applied to previous synthetic sensors design
in order to be reliable both in still air and in presence of the
wind.
ISBN: 978-1-7281-6636-0
Appare nelle tipologie:4.1 Contributo in Atti di convegno

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