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Tang, Martin and Böswald, Marc and Govers, Yves and Pusch, Manuel (2021) Identification and assessment of a nonlinear dynamic actuator model for gust load alleviation in a wind tunnel experiment. CEAS Aeronautical Journal. Springer. doi: 10.1007/s13272-021-00504-y. ISSN 1869-5590.
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Official URL: http://link.springer.com/article/10.1007/s13272-021-00504-y
Abstract
In this paper, the effect of nonlinear actuator dynamics on the performance of an active load alleviation system for an experimental flexible wing is studied. Common nonlinearities such as backlash or rate limits are considered for the control surface actuator. An aeroelastic simulation model of a flexible wing with control surface is being used. With this, a parameter study is carried out to quantify the impact of the individual nonlinearities on the overall closed-loop performance by means of describing functions. Finally, the nonlinear actuator model with parameters identified from dedicated tests is experimentally validated allowing for an accurate prediction of the expected gust load alleviation performance.
| Item URL in elib: | https://elib.dlr.de/141893/ | |||||||||||||||
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| Document Type: | Article | |||||||||||||||
| Title: | Identification and assessment of a nonlinear dynamic actuator model for gust load alleviation in a wind tunnel experiment | |||||||||||||||
| Authors: |
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| Date: | 16 April 2021 | |||||||||||||||
| Journal or Publication Title: | CEAS Aeronautical Journal | |||||||||||||||
| Refereed publication: | Yes | |||||||||||||||
| Open Access: | Yes | |||||||||||||||
| Gold Open Access: | No | |||||||||||||||
| In SCOPUS: | Yes | |||||||||||||||
| In ISI Web of Science: | No | |||||||||||||||
| DOI : | 10.1007/s13272-021-00504-y | |||||||||||||||
| Publisher: | Springer | |||||||||||||||
| ISSN: | 1869-5590 | |||||||||||||||
| Status: | Published | |||||||||||||||
| Keywords: | System identification, Active load alleviation, Wind tunnel experiment, Actuator modeling, Nonlinear dynamics, Aeroservoelasticity | |||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
| HGF - Program: | Aeronautics | |||||||||||||||
| HGF - Program Themes: | Components and Systems | |||||||||||||||
| DLR - Research area: | Aeronautics | |||||||||||||||
| DLR - Program: | L CS - Components and Systems | |||||||||||||||
| DLR - Research theme (Project): | L - Aircraft Systems | |||||||||||||||
| Location: | Göttingen | |||||||||||||||
| Institutes and Institutions: | Institute of Aeroelasticity > Structural Dynamics and System Identification Institute of System Dynamics and Control > Aircraft System Dynamics | |||||||||||||||
| Deposited By: | Tang, Martin | |||||||||||||||
| Deposited On: | 26 Apr 2021 09:24 | |||||||||||||||
| Last Modified: | 26 Apr 2021 09:24 |
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