Becker, Franziska and Kalow, Steffen and Bartels, Rainer (2023) Automated calculation of the internal structure and the natural frequencies of helicopter rotor blades with regard to automated rotor blade optimization. In: 49th European Rotorcraft Forum 2023. European Rotorcraft Forum 2023, 2023-09-05 - 2023-09-07, Bückeburg, Germany.
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Abstract
With regard to an automated multidisciplinary optimization process an automated modeling and calculation of the structural properties of helicopter rotor blades was aspired. For this purpose, a program for structural rotor blade modelling based on rotor blade cross-sections was developed. This process is implemented as three successive steps. First, the CAD cross-section geometry is generated on the basis of a geometry template. Based on this, a structural model is generated and the structural properties are calculated with DLR inhouse tool SaMaRA. Finally, the natural frequencies are calculated using a beam model according to Houbolt & Brooks. To investigate the internal structure of a given outer blade geometry, the sensitivity of structural parameter variations was carried out. For this purpose, a uniform shaped rotor blade based on a selected cross-sectional topology in the aerodynamic blade region was considered. The performed parame-ter study considers the effects of different parameter intervals on the structural properties and the resulting natural frequencies.
Item URL in elib: | https://elib.dlr.de/199088/ | ||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||
Title: | Automated calculation of the internal structure and the natural frequencies of helicopter rotor blades with regard to automated rotor blade optimization | ||||||||||||||||
Authors: |
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Date: | 2023 | ||||||||||||||||
Journal or Publication Title: | 49th European Rotorcraft Forum 2023 | ||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Status: | Published | ||||||||||||||||
Keywords: | Sensitivity Analysis, Rotorblade, Automated process | ||||||||||||||||
Event Title: | European Rotorcraft Forum 2023 | ||||||||||||||||
Event Location: | Bückeburg, Germany | ||||||||||||||||
Event Type: | international Conference | ||||||||||||||||
Event Start Date: | 5 September 2023 | ||||||||||||||||
Event End Date: | 7 September 2023 | ||||||||||||||||
Organizer: | DGLR, CEAS | ||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||
HGF - Program Themes: | Efficient Vehicle | ||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||
DLR - Program: | L EV - Efficient Vehicle | ||||||||||||||||
DLR - Research theme (Project): | L - Virtual Rotorcraft and Validation | ||||||||||||||||
Location: | Braunschweig | ||||||||||||||||
Institutes and Institutions: | Institut für Systemleichtbau > Adaptronics Institute of Flight Systems > Rotorcraft | ||||||||||||||||
Deposited By: | Becker, Franziska | ||||||||||||||||
Deposited On: | 20 Nov 2023 18:29 | ||||||||||||||||
Last Modified: | 22 Jul 2024 11:57 |
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