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Integrated Flexible Dynamic Maneuver Loads Models based on Aerodynamic Influence Coefficients of a 3D Panel Method

Kier, Thiemo (2015) Integrated Flexible Dynamic Maneuver Loads Models based on Aerodynamic Influence Coefficients of a 3D Panel Method. 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 05.-09. Jan. 2015, Kissimmee, FL, USA. DOI: 10.2514/6.2015-0185

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Abstract

The integration of loads analysis models using so called aerodynamic influence coefficients (AICs) is described. These AICs relate a change of normal velocity at panel control points to a change in panel pressure distribution, allowing to consider aeroelastic effects in a straight forward manner. The aerodynamic method employed for aeroelastic applications is typically the Vortex or Doublet Lattice Method, discretizing mean lifting surfaces. In this paper, the AICs are obtained by a 3D panel method, which significantly increases the geometric fidelity and accounts for previously unmodeled effects. This paper demonstrates the application for manoeuvre loads analysis using a quasi-steady assumption. Two test cases are presented: a steady pull-up trim case and a transient roll manoeuvre. The results using the AIC approach are validated by comparison with steady computations of the 3D panel method.

Item URL in elib:https://elib.dlr.de/97801/
Document Type:Conference or Workshop Item (Speech)
Title:Integrated Flexible Dynamic Maneuver Loads Models based on Aerodynamic Influence Coefficients of a 3D Panel Method
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kier, ThiemoThiemo.Kier (at) DLR.deUNSPECIFIED
Date:May 2015
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2015-0185
Status:Published
Keywords:integrated flexible flight dynamics model, maneuver loads analysis, 3D Panel Methods, Aerodynamic Influence Coefficients
Event Title:56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Event Location:Kissimmee, FL, USA
Event Type:international Conference
Event Dates:05.-09. Jan. 2015
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 - Systems and Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Kier, Thiemo
Deposited On:24 Aug 2015 15:53
Last Modified:31 Jul 2019 19:54

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