Scaled Aircraft in Aeroelastic Similarity- Flutter Optimization

Abstract

The work presented herein aims to perform aeroelastic scaling on a blended wing body by using existing optimization-based design approaches and then performing flutter optimizations. This work section is broken down into two parts: P2 and P3. In part P2, the focus is on examining aeroelastic scaling and applying it to the GARTEUR SM-AG19 models and GOLAND Wing. The P3 uses aeroelastic scaling and flutter optimization to improve the B.W.B. The objective function of the scaling algorithm is to match the modal parameters of a scaled model with those of the reference model by optimizing the structural properties of the test case. Design variables are the structural properties of a building that must be considered when optimizing the construction schedule. Verifying mode shape similarity is performed with the Modal Assurance Criterion (M.A.C.).

Keywords: Aeroelastic Scaling, Flutter, Blended Wing Body, Modal Shapes, Modal Frequencies, Modal Assurance Criterion

JEL Classification: Y4