This work considers the aeroservoelastic optimization of a highly flexible transport aircraft wingbox with several control surfaces distributed along the trailing edge. The steady deflections of the control surfaces are designed to alleviate static maneuver loads, while the unsteady deflections are designed to alleviate stochastic continuous gust disturbances. Spatially-detailed unsteady stochastic stress and panel buckling constraints are formulated via modal acceleration, and by methods to locate the most-probable failure point along an equal-probability hypersurface. For the case considered here, it is found that the inclusion of such gust constraints during optimization presents a sizable structural mass penalty. In some cases, this mass penalty can be completely recovered with controlled gust load alleviation.
Aeroservoelastic Optimization under Stochastic Gust Constraints
AIAA Aviation Forum ; 2018 ; Atlanta, GA, United States
2018-06-25
Conference paper
No indication
English
Mode Acceleration Based Random Gust Stresses in Aeroservoelastic Optimization
Online Contents | 2004
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