Article | Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany | A Modelica Library of Anisotropic Flexible Beam Structures for the Simulation of Composite Rotor Blades

Title:
A Modelica Library of Anisotropic Flexible Beam Structures for the Simulation of Composite Rotor Blades
Author:
Christian Spieß: Technische Universität München, Institute for Helicopter Technology, Garching, Germany Manfred Hajek: Technische Universität München, Institute for Helicopter Technology, Garching, Germany
DOI:
10.3384/ecp12076417
Download:
Full text (pdf)
Year:
2012
Conference:
Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany
Issue:
076
Article no.:
043
Pages:
417-424
No. of pages:
8
Publication type:
Abstract and Fulltext
Published:
2012-11-19
ISBN:
978-91-7519-826-2
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


Export in BibTex, RIS or text

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.

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

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

Author:
Christian Spieß, Manfred Hajek
Title:
A Modelica Library of Anisotropic Flexible Beam Structures for the Simulation of Composite Rotor Blades
DOI:
http://dx.doi.org/10.3384/ecp12076417
References:
[1] CESNIK; C. E. S. and D. H. HODGES: Variational-Asymptotical Analysis of Initially Curved and Twisted Composite Beams. Applied Mechanics Review; 46(11); 1993.
[2] DOWELL; E. H.; J. TRAYBAR and D. H. HODGES: An experimental study of the nonlinear stiffness of a rotor blade undergoing flap; lag and twist deformations. NASA; 1975.
[3] DOWELL; E. H.; J. TRAYBAR and D. H. HODGES: An experimental-theoretical correlation study of non-linear bending and torsion deformations of a cantilever beam. Journal of Sound and Vibration; 50(4):533–544; 1977. doi: 10.1016/0022-460X(77)90501-6.
[4] FRIEDMANN; P.P; B. GLAZ and R. PALACIOS: A moderate deflection composite helicopter rotor blade model with an improved cross-sectional analysis. International Journal of Solids and Structures; 46(10):2186–2200; 2008. doi: 10.1016/j.ijsolstr.2008.09.017.
[5] GIAVOTTO; V. and M. BORRI: Anisotropic Beam Theory and Applications. Computers and Structures; 16(1-4); 1983. doi: 10.1016/0045-7949(83)90179-7.
[6] HODGES; D. H.: Nonlinear composite beam theory. American Institute of Aeronautics and Astronautics; 2006. doi: 10.2514/4.866821.
[7] JOHNSON; W.: CAMRAD II; Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics; 1992-1997.
[8] JOHNSON; W.: Rotorcraft dynamics models for a comprehensive analysis. 1998.
[9] SPIESS; C.: Entwicklung eines anisotropen Strukturdynamikmodells zur Simulation von elastischen Rotorblättern. Diploma Thesis; Technische Universität München; Garching; 2011.
[10] WASHIZU; K.: Variational methods in elasticity and plasticity. Pergamon press Oxford; UK; 1975.

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

Author:
Christian Spieß, Manfred Hajek
Title:
A Modelica Library of Anisotropic Flexible Beam Structures for the Simulation of Composite Rotor Blades
DOI:
http://dx.doi.org/10.3384/ecp12076417
Note: the following are taken directly from CrossRef
Citations:
No citations available at the moment