TY - JFULL
AU - D. H. Kim and Y. H. Kim and T. Kim
PY - 2011/10/
TI - Transonic Flutter Analysis Using Euler Equation and Reduced Order Modeling Technique
T2 - International Journal of Physical and Mathematical Sciences
SP - 1505
EP - 1514
VL - 5
SN - 1307-6892
UR - https://publications.waset.org/pdf/8981
PU - World Academy of Science, Engineering and Technology
NX - Open Science Index 57, 2011
N2 - A new method identifies coupled fluid-structure system with a reduced set of state variables is presented. Assuming that the structural model is known a priori either from an analysis or a test and using linear transformations between structural and aeroelastic states, it is possible to deduce aerodynamic information from sampled time histories of the aeroelastic system. More specifically given a finite set of structural modes the method extracts generalized aerodynamic force matrix corresponding to these mode shapes. Once the aerodynamic forces are known, an aeroelastic reduced-order model can be constructed in discrete-time, state-space format by coupling the structural model and the aerodynamic system. The resulting reduced-order model is suitable for constant Mach, varying density analysis.
ER -