A computational co-simulation framework to study the aeroelastic behavior of a variety of aeronautical systems characterized by highly flexible structures undergoing complex motions in space and immersed in a low-subsonic flow is presented. The authors combine a non-linear aerodynamic model based on an extended version of the unsteady vortex-lattice method with a non-linear structural model based on a segregated formulation of Lagrange’s equations obtained with the Floating Frame of Reference formalism. The structural model construction allows for hybrid combinations of different models typically used with multi-body systems, such as models based on rigid-body dynamics, assumed-modes techniques, and finite-element methods. The governing equations are numerically integrated in the time domain to obtain the structural response and the consistent flowfield around it. The integration is based on the fourth-order predictor-corrector method of Hamming. The findings are found to capture known non-linear behavior of these non-conventional flight systems. The developed framework should be relevant for conducting aeroelastic studies on a wide variety of aeronautical systems such as: micro-air-vehicles (MAVs) inspired by biology, morphing wings, and joined-wing aircrafts, among others.
CITATION STYLE
Preidikman, S., Roccia, B. A., Verstraete, M. L., Ceballos, L. R., & Balachandran, B. (2018). A computational aeroelastic framework for studying non-conventional aeronautical systems. In Mechanisms and Machine Science (Vol. 54, pp. 325–334). Springer Netherlands. https://doi.org/10.1007/978-3-319-67567-1_31
Mendeley helps you to discover research relevant for your work.