Tell a friend
Print
Gundlach, Janto and Govers, Yves (2019) Experimental modal analysis of aeroelastic tailored rotor blades in different boundary conditions. Journal of Physics: Conference Series, 1356 (012023). Institute of Physics (IOP) Publishing. doi: 10.1088/1742-6596/1356/1/012023. ISSN 1742-6588.
![[img]](https://elib.dlr.de/style/images/fileicons/application_pdf.png) |
PDF
- Published version
1MB |
Official URL: https://iopscience.iop.org/article/10.1088/1742-6596/1356/1/012023
Abstract
In the present study results of a modal test campaign involving four identical rotor blades of 20 m length with geometric bend-twist coupling are reported. Design, realisation, and post-processing of the experiments have been carried out under careful consideration of a pre-existing FE shell model. Modal data is obtained at two different stages of the manufacturing process and for one blade in two separate boundary conditions, i.e. free-free in elastic suspensions and clamped to a test rig. Due to the high sensor density in both configurations, the identified normal modes do not only include coupled eigenforms but also mode shapes illustrating cross-sectional vibrations; the latter attributed to the deflection of the blade shells. The acquired dataset is found to be well-suited for the validation of the numerical model and representsa reliable basis for updating.
| Item URL in elib: | https://elib.dlr.de/134023/ | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Document Type: | Article | |||||||||
| Title: | Experimental modal analysis of aeroelastic tailored rotor blades in different boundary conditions | |||||||||
| Authors: |
| |||||||||
| Date: | 24 October 2019 | |||||||||
| Journal or Publication Title: | Journal of Physics: Conference Series | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | Yes | |||||||||
| In SCOPUS: | Yes | |||||||||
| In ISI Web of Science: | No | |||||||||
| Volume: | 1356 | |||||||||
| DOI : | 10.1088/1742-6596/1356/1/012023 | |||||||||
| Publisher: | Institute of Physics (IOP) Publishing | |||||||||
| ISSN: | 1742-6588 | |||||||||
| Status: | Published | |||||||||
| Keywords: | Experimental modal analysis, rotor blades, bend-twist coupling | |||||||||
| HGF - Research field: | Energy | |||||||||
| HGF - Program: | Renewable Energies | |||||||||
| HGF - Program Themes: | Wind Energy | |||||||||
| DLR - Research area: | Energy | |||||||||
| DLR - Program: | E SW - Solar and Wind Energy | |||||||||
| DLR - Research theme (Project): | E - Wind Energy (old) | |||||||||
| Location: | Göttingen | |||||||||
| Institutes and Institutions: | Institute of Aeroelasticity > Structural Dynamics and System Identification | |||||||||
| Deposited By: | Gundlach, Janto | |||||||||
| Deposited On: | 24 Feb 2020 08:42 | |||||||||
| Last Modified: | 24 Feb 2020 08:42 |
Repository Staff Only: item control page
