Development of Preliminary Design Models for Active Aeroelastic Wing Application

摘要

An investigation of active aeroelastic wing (AAW) technology was initiallyconducted on a 'beam rod' model of an FIA-18 aircraft for demonstration of an acceptable roll performance. The beam rod model was verified by comparing the natural frequencies to the results obtained by McDonnell-Douglas during a ground vibration test. Further verification of the beam-rod model and selected aerodynamic representation of the FIA-18 were obtained in flutter studies. The beam-rod model was further developed for active aeroelastic wing technology through a study of control surface blending for the roll performance enhancement of the FIA-18 with a reduction of wing stiffening. It is demonstrated that the roll performance of the FIA-18 could be enhanced by incorporating AAW concepts in