Topology Optimization of Compliant Morphing Flap Considering Finite Deformation

Abstract

In order to consider a finite deformation for the compliant morphing flap, this study resolves a numerical instability, which is caused by an artificial weak material under excessively large deformations. The remeshing method which adopts more precise structural model without using such weak materials is integrated into a level set-based topology optimization method. Then, the optimal design problem is formulated for the compliant morphing flap which deforms to the target shape under the applied load. Through numerical examples, validity of the proposed method is demonstrated.