Last change of this page: 12 Jan 2017  
 

Deployment base.. Time period.. Description.. Principal investigators.. Partners.. Instruments.. Flights.. More information.. Press, media, photo gallery .. Publications.. FX contact point ..


Mission acronym, title and status

iLOADS

"Integrierte Lastanalyse im DLR / Integrated Loads Analysis"

 

Status:     Mission operation was successfully completed on April 22, 2016.  

 


HALO deployment base

DLR, Oberpfaffenhofen, Germany
(Airport ICAO code: EDMO)

Oberpfaffenhofen

Enlarge map ..

 


Time period

iLOADS deployment: March 29 - April 29, 2016

 


Project description

HALO flight test with instrumented wingstores for aeroelastic and loads analysis within DLR project iLOADS

Each aircraft modification needs to be analyzed numerically and experimentally to guarantee the structural integrity of the aircraft in each flight condition. Maximum loads for gust encounters and the aeroelastic stability are determined from numerical models which are validated by following flight tests.For flight tests the aircraft and its external stores are instrumented with acceleration and strain sensors to monitor vibration and load levels for different flight conditions. To reduce cost and time for flight testing, fast decisions from engineers inside the aircraft during a test flight are needed when going from one flight condition to the next.


DLR's PMS wing stores on HALO

The DLR Institute of Aeroelasticity in Göttingen, Germany, has developed a real-time procedure to analyze aircraft vibrations from atmospheric turbulence and impulsive pilot controls directly in flight. These methods allow the simultaneous identification of various aircraft parameters which are necessary to evaluate the aeroelastic stability, and, at the same time, are dependent on the flight condition, like eigenfrequencies, mode shapes and damping ratios. The fast interaction between analysis software and the measurement system also allows for an instantaneous maneuver loads analysis.

The departments of Loads Analysis and Aeroelastic Design and of Structural Dynamics and Aeroelastic System Identification will test the new methodologies in 13 flight hours with HALO equipped with the DLR PMS carriers. The campaign is performed within the DLR project iLOADS. Focus is on the support of the DLR processes for loads analysis and aeroelastic stability analysis, as well as on certification aspects of the HALO aircraft with external stores.


HALO mode shape

 


Principal investigators

Prof. Dr.-Ing. Wolf-Reiner Krüger (Projektleiter iLOADS, Abteilungsleiter AE-LAE)
DLR, Institut für Aeroelastik, Bunsenstr. 10, 37073 Göttingen

M.Eng. Julian Sinske (Teilprojektleiter für Flugversuch iLOADS)
DLR, Institut für Aeroelastik, Bunsenstr. 10, 37073 Göttingen

Dr.-Ing. Yves Govers (Gruppenleiter Modal Testing and Model Validation)
DLR, Institut für Aeroelastik, Bunsenstr. 10, 37073 Göttingen

 


Project partners for this mission

 


Scientific instruments and payload configuration

List of scientific instruments for the mission

 


HALO flights for this mission

Aircraft
registration
Date Takeoff time (UT) Landing time (UT) Total flight time
(h)
FromToType Comment
D-ADLR12.04.201613:48:0016:31:002.717EDMOEDMOFlight test iLOADS
D-ADLR14.04.201613:35:0015:21:001.767EDMOEDMOFlight test iLOADS
D-ADLR18.04.201613:10:0016:31:003.350EDMOEDMOFlight test iLOADS
D-ADLR19.04.201607:46:0009:52:002.100EDMOEDMOFlight test iLOADS
D-ADLR21.04.201605:08:0008:03:002.917EDMOEDMOFlight test iLOADS

 

HALO flight tracks


Enlarge map..

 


More information

For more information please contact the scientists responsible for this mission.

 


Press releases, media, photo gallery

News report DLR (4-May-2016):
HALO flight test – turbulence, vibration and new techniques (with video download)   |   German version here..

 

Youtube video clip (by DLR):

 

Some photographs


Integration of sensors into HALO DLR-type PMS wing carrier

During the ground vibration test the aircraft
was excited with random and swept-sine vibrations

HALO during taxi vibration test

 


Contact point at FX for this mission

HALO Project Management: Martina Hierle

Postal address:
DLR Oberpfaffenhofen
Flugexperimente (FX)
Münchener Str. 20
82234 Weßling
Germany

Office phone:
+49 (0)8153 28-1792

 


 

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