Analysis Regarding the Effects of Atmospheric Turbulence on Aircraft Dynamics
This paper will analyze the Gust Load Alleviation (GLA) systems which can be used to reduce the effects of atmospheric turbulences generated by wind gusts on vertical acceleration of aircraft. Their purpose is to reduce airframe loads and to improve passenger comfort. The dynamic model of the aircra...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
National Institute for Aerospace Research “Elie Carafoli” - INCAS
2016-06-01
|
Series: | INCAS Bulletin |
Subjects: | |
Online Access: | http://bulletin.incas.ro/files/stroe__andrei__vol_8_iss_2__a_2.pdf |
id |
doaj-48437b6e936e4e7ab85da2e368ba801a |
---|---|
record_format |
Article |
spelling |
doaj-48437b6e936e4e7ab85da2e368ba801a2020-11-24T21:11:21ZengNational Institute for Aerospace Research “Elie Carafoli” - INCASINCAS Bulletin2066-82012247-45282016-06-018212313210.13111/2066-8201.2016.8.2.10Analysis Regarding the Effects of Atmospheric Turbulence on Aircraft DynamicsGabriela STROE0Irina-Carmen ANDREI1“POLITEHNICA” University of Bucharest, Faculty of Aerospace Engineering, Gh. Polizu Street 1-7, Sector 1, Bucharest, 011061, Romania, ing.stroe@yahoo.comINCAS ‒ National Institute for Aerospace Research “Elie Carafoli”, B-dul Iuliu Maniu 220, Bucharest 061126, Romania, andrei.irina@incas.ro, icandrei28178@gmail.comThis paper will analyze the Gust Load Alleviation (GLA) systems which can be used to reduce the effects of atmospheric turbulences generated by wind gusts on vertical acceleration of aircraft. Their purpose is to reduce airframe loads and to improve passenger comfort. The dynamic model of the aircraft is more realistic than a rigid-body model, since it includes the structural flexibility; due to its complexity, such model can make feedback control design for gust load alleviation more challenging. The gust is generated with the Dryden power spectral density model. This kind of model lends itself well to frequency-domain performance specifications in the form of the weighting functions. Two classical analytical representations for the power spectral density (PSD) function of atmospheric turbulence as given by Von Kármán and Dryden, were used. The analysis is performed for a set of specified values for flight velocity and altitude (as test cases), with different gust signals that must be generated with the required intensity, scale lengths and PSD functions.http://bulletin.incas.ro/files/stroe__andrei__vol_8_iss_2__a_2.pdfGust Load Alleviation (GLA) systemsfeedback control designpower spectral density (PSD) function |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gabriela STROE Irina-Carmen ANDREI |
spellingShingle |
Gabriela STROE Irina-Carmen ANDREI Analysis Regarding the Effects of Atmospheric Turbulence on Aircraft Dynamics INCAS Bulletin Gust Load Alleviation (GLA) systems feedback control design power spectral density (PSD) function |
author_facet |
Gabriela STROE Irina-Carmen ANDREI |
author_sort |
Gabriela STROE |
title |
Analysis Regarding the Effects of Atmospheric Turbulence on Aircraft Dynamics |
title_short |
Analysis Regarding the Effects of Atmospheric Turbulence on Aircraft Dynamics |
title_full |
Analysis Regarding the Effects of Atmospheric Turbulence on Aircraft Dynamics |
title_fullStr |
Analysis Regarding the Effects of Atmospheric Turbulence on Aircraft Dynamics |
title_full_unstemmed |
Analysis Regarding the Effects of Atmospheric Turbulence on Aircraft Dynamics |
title_sort |
analysis regarding the effects of atmospheric turbulence on aircraft dynamics |
publisher |
National Institute for Aerospace Research “Elie Carafoli” - INCAS |
series |
INCAS Bulletin |
issn |
2066-8201 2247-4528 |
publishDate |
2016-06-01 |
description |
This paper will analyze the Gust Load Alleviation (GLA) systems which can be used to reduce the effects of atmospheric turbulences generated by wind gusts on vertical acceleration of aircraft. Their purpose is to reduce airframe loads and to improve passenger comfort. The dynamic model of the aircraft is more realistic than a rigid-body model, since it includes the structural flexibility; due to its complexity, such model can make feedback control design for gust load alleviation more challenging. The gust is generated with the Dryden power spectral density model. This kind of model lends itself well to frequency-domain performance specifications in the form of the weighting functions. Two classical analytical representations for the power spectral density (PSD) function of atmospheric turbulence as given by Von Kármán and Dryden, were used. The analysis is performed for a set of specified values for flight velocity and altitude (as test cases), with different gust signals that must be generated with the required intensity, scale lengths and PSD functions. |
topic |
Gust Load Alleviation (GLA) systems feedback control design power spectral density (PSD) function |
url |
http://bulletin.incas.ro/files/stroe__andrei__vol_8_iss_2__a_2.pdf |
work_keys_str_mv |
AT gabrielastroe analysisregardingtheeffectsofatmosphericturbulenceonaircraftdynamics AT irinacarmenandrei analysisregardingtheeffectsofatmosphericturbulenceonaircraftdynamics |
_version_ |
1716753651695878144 |