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Trim Analysis of Nonlinear Flight Dynamics for a Civil Aircraft with Active High-Lift System

Diekmann, Jobst Henning (2013) Trim Analysis of Nonlinear Flight Dynamics for a Civil Aircraft with Active High-Lift System. Deutscher Luft- und Raumfahrtkongress 2013 , 10.-12. Sept. 2013, Stuttgart, Deutschland.

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This paper shows recent flight mechanical simulation results of a civil active highlift aircraft with blown Coand˘a flaps. The main focus lies on the trim analysis of the aircraft. To this end the basic structure and core elements of the nonlinear model, describing the dynamic behavior of an aircraft with this specific type of active highlift system, are presented. The center of gravity location range allowing controllability and static stability of the aircraft is determined, followed by an analysis of the resulting characteristics of the aerodynamic model and their impact on the trim results of the aircraft. The results show specific flight mechanical difficulties due to the active highlift system, namely characteristics hardly compatible with safe takeoff and approach procedures. The physical explanations will be given and discussed. The necessity of the application of a wing leading edge device is pointed out by preliminary studies and further remedial means are proposed.

Item URL in elib:https://elib.dlr.de/84278/
Document Type:Conference or Workshop Item (Speech)
Title:Trim Analysis of Nonlinear Flight Dynamics for a Civil Aircraft with Active High-Lift System
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Diekmann, Jobst Henningjobst.diekmann (at) dlr.deUNSPECIFIED
Date:10 September 2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Active High-Lift, Trim Analysis, Coanda Flap,Modeling Flight, Dynamics Simulation
Event Title:Deutscher Luft- und Raumfahrtkongress 2013
Event Location:Stuttgart, Deutschland
Event Type:international Conference, national Conference
Event Dates:10.-12. Sept. 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Flight Dynamics and Simulation
Deposited By: Diekmann, Dr. Jobst Henning
Deposited On:16 Sep 2013 14:57
Last Modified:08 May 2014 23:24

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