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CEAS EuroGNC 2026

A design approach for the systematic synthesis of rotorcraft control laws

Pietro Bruschi PhD Student, Politecnico di Milano, Milan, Italy.
Marco Lovera Full Professor, Politecnico di Milano, Milan, Italy.
Abstract:
This paper presents an approach to the systematic synthesis of fixed-structure control laws for rotorcraft. The proposed approach enables the design of attitude controllers capable of stabilizing helicopter dynamics across multiple flight conditions, from hover to high-speed flight. The approach leverages multi-objective structured H-infinity synthesis on a model representative of a helicopter's attitude dynamics. Both hard and soft performance requirements are considered, taken from standard design literature, including disk margins and constraints on the sensitivity function to manage inter-axis coupling. An illustrative case demonstrates the tool's capability to achieve satisfactory closed-loop performance, validating its potential for rotorcraft control law design and certification support.
Keywords: Flight Control Laws; H-infinity synthesis; Rotorcraft control
View PDFCEAS-GNC-2026-087 doi: 10.82124/CEAS-GNC-2026-087


Pietro Bruschi, Marco Lovera: A design approach for the systematic synthesis of rotorcraft control laws. Proceedings of the 2026 CEAS EuroGNC conference. Madrid, Spain. May 2026. doi: 10.82124/CEAS-GNC-2026-087.
BibTeX entry (UTF-8):

@Incollection{CEAS-GNC-2026-087,
    author = {Bruschi, Pietro and Lovera, Marco},
    title = {A design approach for the systematic synthesis of rotorcraft control laws},
    booktitle = {Proceedings of the 2026 {CEAS EuroGNC} conference},
    address = {Madrid, Spain},
    month = may,
    year = {2026},
    doi = {10.82124/CEAS-GNC-2026-087}
}