WIT Press


Non-linear Supersonic Panel Flutter And Control Using Shape Memory Alloy

Price

Free (open access)

Paper DOI

10.2495/FSI010131

Volume

56

Pages

10

Published

2001

Size

918 kb

Author(s)

B. Duan & C. Mei

Abstract

Due to aerodynamic heating, flight vehicles at supersonic speeds are subjected to surface panel temperatures that can potentially reach several hundred degrees. This paper will present the temperature effect on large-amplitude flutter of composite panels, and the suppression of flutter by embedding prestrained shape memory alloy (SMA) in composite panels. The finite element formulation and the two-step solution procedure in conjunction with the incremental method for temperature-dependent nonlinear material properties of SMA are presented briefly. Results are obtained for a laminated composite panel to demonstrate the effectiveness of SMA in control of nonlinear panel flutter. 1 Introduction Flutter of long suspension bridges, aircraft wings, and surface panels of aircraft and spacecraft are common fluid structu

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