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Titel:

Pre-Test of a Light-Weight CFRP Wing Segment of a High Altitude Platform for In-flight Load Measurements Based on Strains

Autor(en): A. Voß, K. Soal, J. Sinske, D. Meier, S. Niemann, J. Nickel, M. Hanke
Zusammenfassung: For the validation of loads and aeroelastic simulations of a high altitude platform (HAP) in-flight, load measurements are very helpful. One technique to obtain load measurements is to apply strain gages to the primary structure. A calibration procedure enables the reconstruction of the loads from the measured strains. To reduce the risks, gain confidence and establish a feasible measurement set-up, a pre-test based on a CFRP wing segment is performed. This paper presents the theoretical background and the set-up of the measurement equipment. The results of the calibration from three different test cases are presented, showing an excellent agreement between applied and reconstructed loading with a deviation of less than or equal to ±1.0N and less than or equal to ±2.0cm for the location. Finally, the strains measured in the experiment are compared with the simulation, showing that a prediction of the strains is possible within a range of less than or equal to ±8%.
Veranstaltung: Deutscher Luft- und Raumfahrtkongress 2021
Verlag, Ort: Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2021
Medientyp: Conference Paper
Sprache: englisch
Format: 21,0 x 29,7 cm, 9 Seiten
URN: urn:nbn:de:101:1-2021092413314286289824
DOI:10.25967/550028
Stichworte zum Inhalt: flight test, High Altitude Platform, load measurement, strain gages, strains
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Kommentar:
Zitierform:Voß, A.; Soal, K.; et al. (2021): Pre-Test of a Light-Weight CFRP Wing Segment of a High Altitude Platform for In-flight Load Measurements Based on Strains. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/550028. urn:nbn:de:101:1-2021092413314286289824.
Veröffentlicht am: 24.09.2021