INVESTIGADORES
PREIDIKMAN Sergio
congresos y reuniones científicas
Título:
Thin, Flapping wings: Structural Models and Fluid-Structure Interactions
Autor/es:
T. FITZGERALD; MARCELO FEDERICO VALDEZ; SERGIO PREIDIKMAN; BALAKUMAR BALACHANDRAN
Lugar:
Orlando, Florida
Reunión:
Conferencia; 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Confere; 2010
Institución organizadora:
The American Institute of Aeronautics and Astronautics (AIAA)
Resumen:
With a long-term goal of understanding the influence of wing flexibility on
the aerodynamic performance of a flapping wing, the authors have considered a
threedimensional, insect wing inspired structure. A nonlinear finite element
formulation is used to model this structure, which consists of veins and
membranes that hold the veins together. Each vein contributes to the structural
rigidity of the wing, and it is discretized with beam elements. The surface of
the wing is modeled by using thin membrane elements. Numerical evaluation of
the aerodynamic forces is carried out by using the unsteady vortex-lattice method
(UVLM). In the computational framework, the fluid-structure systems are fully coupled
by using a fixed-point iteration scheme. Investigations into the primary
deformation modes of the coupled system are carried out to assess the
contributions of spanwise, as well as chordwise deformations to the generated
aerodynamic loads.