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Aerodynamic Modeling and System Identification from Flight Data - Recent Applications at DLR

Jategaonkar, Ravindra (2008) Aerodynamic Modeling and System Identification from Flight Data - Recent Applications at DLR. In: SAIAS, Cape Town, South Africa. SAIAS South African International Aerospace Symposium, 2008-09-14 - 2008-09-16, Cape Town, South Africa.

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Abstract

his lecture provides an overview of system identification activities carried out during the last decade at DLR, the German Aerospace Center. After a brief account of parameter estimation methods and of consistency checking of recorded flight data, an emphasis is placed on aerodynamic modeling from flight data. Several applications are presented, such as : i) development of global, high-fidelity aerodynamic databases for training simulators, ii) models for in-flight simulator iii) modeling of stall hysteresis, iv) estimation of aerodynamic flow field characteristics and validation of aircraft reaction models from wake vortex encounter flights, and v) a parametric wake distortion model to improve helicopter coupling off-axis response. These examples cover a variety of flight vehicles with widely different characteristics. Besides parameter estimation aspects, those related to model validation and update of aerodynamic databases are discussed. The talk is concluded by indicating the possible future directions of work.

Document Type:Conference or Workshop Item (Speech)
Title:Aerodynamic Modeling and System Identification from Flight Data - Recent Applications at DLR
Authors:
AuthorsInstitution or Email of Authors
Jategaonkar, RavindraUNSPECIFIED
Date:16 September 2008
Journal or Publication Title:SAIAS, Cape Town, South Africa
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:System Identification, aerodynamic database, flight testing, parameter estimation,
Event Title:SAIAS South African International Aerospace Symposium
Event Location:Cape Town, South Africa
Event Type:international Conference
Event Dates:2008-09-14 - 2008-09-16
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin
Location: Braunschweig , Oberpfaffenhofen
Institutes and Institutions:Institute of Flight Systems
Deposited By: Dr.phil. Ravindra Jategaonkar
Deposited On:19 Mar 2009
Last Modified:27 Apr 2009 15:11

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