DGLR-Publications Database - Detailview

Title:

Automated Calculation of the Internal Structure and the Natural Frequencies of Helicopter Rotor Blades with Regard to Automated Rotor Blade Optimization

Author(s):
F. Becker, S. Kalow, R. Bartels
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 parameter study considers the effects of different parameter intervals on the structural properties and the resulting natural frequencies.
Event:
49th European Rotorcraft Forum 2023, Bückeburg, 2023
Mediatype:
Conference Paper
Language:
englisch
Format:
21,0 x 29,7 cm, 13 Pages
Published in:
DGLR-Bericht, 2023, 2023-01, 49th European Rotorcraft Forum 2023 - Proceedings; S.1-13; 2023; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn
Price:
NA
ISBN:
ISSN:
Comment:
Classifikation:
Keywords:
Available:
Bestellbar
Published:
2023


This Document is part of a superordinate publication:
49th European Rotorcraft Forum 2023 - Proceedings