The Rotorcraft Aerodynamics Library: A Modelica Library for Simulation of Rotorcraft Aerodynamics and Whirl Flutter

Cory Rupp
ATA Engineering, Inc., USA

Nicolas Reveles
ATA Engineering, Inc., USA

Ladda ner artikelhttps://doi.org/10.3384/ecp20169111

Ingår i: Proceedings of the American Modelica Conference 2020, Boulder, Colorado, USA, March 23-25, 2020

Linköping Electronic Conference Proceedings 169:12, s. 111-119

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Publicerad: 2020-11-03

ISBN: 978-91-7929-900-2

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


Rotor aeromechanics is a multidisciplinary branch in the field of rotorcraft that involves performance, loads, vibrations, stability, and noise. Aeromechanic analysis in this field is a complex task typically requiring specialized software tools to simultaneously resolve the coupled structural, mechanical, and aerodynamic solutions that contain motion (both rigid and elastic) and forces. One drawback of these tools is that they are often overspecialized and do not lend themselves well to the analysis of the latest rotorcraft advances and concepts, including those utilizing distributed electric propulsion. In this paper, a Modelica library is presented that provides an extensible platform for performing analysis and design studies of current and future rotorcraft. Several examples are presented that illustrate how the library can be used to perform aerodynamic and whirl flutter stability analysis as well as control system design for multi-rotor aircraft.


Modelica, rotorcraft, aeromechanics, aerodynamics, whirl flutter, flight control


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