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Load Measurements with the Discus-2c - Flight Test Planning and Data Gathering

Raab, Christian (2019) Load Measurements with the Discus-2c - Flight Test Planning and Data Gathering. DLR-Interner Bericht. DLR-IB-FT-BS-2019-11, 68 S.

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The exact determination of the aerodynamic loads acting on individual aircraft components during flight, in particular the wings and tail unit, plays an important role in the construction and certification of an aircraft. During the construction of new aircraft different load cases are simulated and the occurring forces and moments are determined in order to design the different structural elements. Flight test data is used to verify that the simulation models are of sufficient accuracy and that the measured structural loads do not exceed the design limits during selected flight maneuvers. Traditionally, the occurring structural forces and moments are measured with strain gauges. Micro system sensors (MEMS) are used to measure the local air pressure on a component part. By integrating the surface pressure distribution, the aerodynamic loads acting on the wing can be determined. In contrast to the method using strain gauges, there is no need for complex on ground calibration and no need for installing the sensor inside the structural components, associated with electrical wiring. In order to investigate the benefits of MEMS pressure sensors for the determination of loads, flight tests have been performed with the DLR research soaring plane Discus-2c. This report documents the flight test requirements, the aircraft instrumentation and the recorded flight data

Item URL in elib:https://elib.dlr.de/125845/
Document Type:Monograph (DLR-Interner Bericht)
Title:Load Measurements with the Discus-2c - Flight Test Planning and Data Gathering
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Raab, ChristianChristian.Raab (at) dlr.dehttps://orcid.org/0000-0003-4504-4165
Date:10 January 2019
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Number of Pages:68
Keywords:Flight Test, Soaring Plane, Loads, Aerodynamic, Pressure Distribution, Discus-2c, Strain Gauges, Load Measurement
Institution:DLR Institut für Flugsystemtechnik
Department:Flugdynamik und Simulation
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: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Flight Dynamics and Simulation
Deposited By: Raab, Dipl.-Ing. Christian
Deposited On:26 Feb 2019 11:00
Last Modified:26 Feb 2019 11:00

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