Conference article

A Modelica Library of Anisotropic Flexible Beam Structures for the Simulation of Composite Rotor Blades

Christian Spieß
Technische Universität München, Institute for Helicopter Technology, Garching, Germany

Manfred Hajek
Technische Universität München, Institute for Helicopter Technology, Garching, Germany

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Published in: Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Linköping Electronic Conference Proceedings 76:43, p. 417-424

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Published: 2012-11-19

ISBN: 978-91-7519-826-2

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


Beam theories are extensively used for simulation of helicopter rotor blades. The predominant deployment of composite materials in rotor blade development demands for complex theories that are able to describe the elastic behavior of anisotropic and nonhomogeneous materials. In this paper a Modelica library is presented which is capable of simulating extensional; torsional and flexural deformation and the couplings between those degrees of freedom. The structural dynamic model is based on cross-sectional analysis.


flexible structures; rotating beams; helicopter rotor design; cross-sectional analysis


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