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CFD-based Multi-Axis Maneuver Simulation for System Identification of Flexible Transport Aircraft

Ritter, Markus Raimund and Roeser, Mathias Stefan and Reimer, Lars (2020) CFD-based Multi-Axis Maneuver Simulation for System Identification of Flexible Transport Aircraft. AIAA SciTech Forum, 6.-10. Jan. 2020, Orlando, USA.

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Abstract

A crucial part of the design and certification process of a transport aircraft is the identification of its flight mechanic stability and control characteristics. This task is typically complied with a time and cost consuming flight test campaign with multistep, one-surface-at-time inputs for each flight condition. Given the accuracy of state of the art multidisciplinary analysis methods including aerodynamics, flight dynamics, and structural dynamics, the substitution of the real flight test by numerical simulation is appropriate and promises time and cost savings. In order to obtain highly accurate simulation results only CFD methods solving the URANS equations seem adequate for the calculation of the aerodynamic forces. In this work we present an approach for the high-fidelity multidisciplinary maneuver simulation based on CFD. The goal is to generate virtual flight test data of high accuracy to be used in a subsequent system identification process which estimates the stability and control characteristics of the aircraft. A wavelet transform method is applied for the design of input signals to the primary control surfaces, where care is taken to keep the total simulation time of the maneuver as low as possible. The test case is a medium-range jet transport for which the approaches, the simulation models, as well as the results of a longitudinal and a multi-axis identification maneuver are presented and discussed.

Item URL in elib:https://elib.dlr.de/133940/
Document Type:Conference or Workshop Item (Speech)
Title:CFD-based Multi-Axis Maneuver Simulation for System Identification of Flexible Transport Aircraft
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Ritter, Markus RaimundMarkus.Ritter (at) dlr.dehttps://orcid.org/0000-0003-3828-0397
Roeser, Mathias Stefanmathias.roeser (at) dlr.deUNSPECIFIED
Reimer, LarsLars.Reimer (at) dlr.deUNSPECIFIED
Date:10 January 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Multidisciplinary Analysis, CFD, Flight Mechanics System Identification, Numerical Flight Dynamics, Simulation Across Domains
Event Title:AIAA SciTech Forum
Event Location:Orlando, USA
Event Type:international Conference
Event Dates:6.-10. Jan. 2020
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - VicToria
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Deposited By: Ritter, Markus Raimund
Deposited On:24 Feb 2020 08:43
Last Modified:24 Feb 2020 08:43

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