Christoph Kaiser, David Quero, Jens Nitzsche

DOI Number: N/A

Conference number: IFASD-2019-054

In this paper the quantification of nonlinear effects in the gust load prediction of transport aircraft configurations is addressed. Therefore, multi-disciplinary simulations of unsteady gust encounters are carried out based on Reynolds Averaged Navier-Stokes solutions. Nonlinear aeroelastic gust load analysis employing the Force Summation Method is conducted for the NASA Common Research Model at transonic speed. Additionally, gust loads based on time-linearized CFD are obtained for comparison with the nonlinear loads. Multiple discrete 1cos gust profiles with different gust amplitudes and gust lenghts are investigated for the analysis of nonlinear effects like the existence of recompression shocks.

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In Categories: IFASD 2019, Maneuver and Gust Loads
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