Print Email Facebook Twitter Seamless Active Morphing Wing Simultaneous Gust and Maneuver Load Alleviation Title Seamless Active Morphing Wing Simultaneous Gust and Maneuver Load Alleviation Author Wang, Xuerui (TU Delft Aerospace Structures & Computational Mechanics) Mkhoyan, T. (TU Delft Aerospace Structures & Computational Mechanics) Mkhoyan, A. (TU Delft Aerospace Structures & Computational Mechanics) De Breuker, R. (TU Delft Aerospace Structures & Computational Mechanics) Date 2021 Abstract This paper deals with the simultaneous gust and maneuver load alleviation problem of a seamless active morphing wing. The incremental nonlinear dynamic inversion with quadratic programming control allocation and virtual shape functions (denoted as INDI-QP-V) is proposed to fulfill this goal. The designed control allocator provides an optimal solution while satisfying actuator position constraints, rate constraints, and relative position constraints. Virtual shape functions ensure the smoothness of the morphing wing at every moment. In the presence of model uncertainties, external disturbances, and control allocation errors, the closed-loop stability is guaranteed in the Lyapunov sense. Wind tunnel tests demonstrate that INDI-QP-V can make the seamless wing morph actively to resist “1-cos” gusts and modify the spanwise lift distribution at the same time. The wing root shear force and bending moment have been alleviated by more than 44% despite unexpected actuator fault and nonlinear backlash. Moreover, during the experiment, all the input constraints were satisfied, the wing shape was smooth all the time, and the control law was executed in real time. Furthermore, as compared with the linear quadratic Gaussian control, the hardware implementation of INDI-QP-V is easier; the robust performance of INDI-QP-V is also superior. To reference this document use: http://resolver.tudelft.nl/uuid:5b32564a-d0e9-4917-b4f2-38812b17d414 DOI https://doi.org/10.2514/1.G005870 Embargo date 2021-11-29 ISSN 0731-5090 Source Journal of Guidance, Control, and Dynamics: devoted to the technology of dynamics and control, 44 (9), 1649-1662 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2021 Xuerui Wang, T. Mkhoyan, A. Mkhoyan, R. De Breuker Files PDF 1.G005870.pdf 2.57 MB Close viewer /islandora/object/uuid:5b32564a-d0e9-4917-b4f2-38812b17d414/datastream/OBJ/view