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Flutter Boundary Calculation of High Speed Air Rudder System Based on CFD/CSD Coupling
Author(s): 
Pages: 1-6+27
Year: Issue:  3
Journal: Tactical Missile Technology

Keyword:  CFD/CSD couplingflutterair rudderaeroelastic simulationtime domaincritical dynamic pressure;
Abstract: The aerodynamic conditions of high-speed aircraft rudder are becoming more and more severe.With the development of CFD and CSD, the flutter boundary calculation of air rudder with high precision has been widely concerned in academic circles. CFD is used to calculate unsteady aerodynamic forces, CSD is used to analyze the structural dynamics of real rudder system, radial basis function(RBF) interpolation is applied to realize data interaction between two kinds of grids, thus an aeroelastic simulation platform of CFD/CSD coupling calculation is established. Taking a rudder in the literature as an example, the time domain response results under different flow conditions are calculated, and the critical dynamic flutter pressure of the rudder is obtained. The comparison of the wind tunnel test results show that the simulation results are in good agreement with the experimental results. The aeroelastic simulation platform has a good calculation accuracy,which can provide some engineering guidance for the design of air rudder.
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