Modal Response of Trapezoidal Wing Structures Using Second-Order Shape Sensitivities | Zendy

Youhua Liu | Zendy; Rakesh K. Kapania | Zendy

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Modal Response of Trapezoidal Wing Structures Using Second-Order Shape Sensitivities

Author(s) -

Youhua Liu,

Rakesh K. Kapania

Publication year - 2000

Publication title -

aiaa journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.828

H-Index - 158

eISSN - 1081-0102

pISSN - 0001-1452

DOI - 10.2514/2.1024

Subject(s) - aeroelasticity , wing , modal , structural engineering , displacement (psychology) , modal analysis , mathematics , finite element method , engineering , aerodynamics , mechanics , materials science , physics , polymer chemistry , psychology , psychotherapist

The modal response of wing structures is very important for assessing their dynamic response including dynamic aeroelastic instabilities. Moreover, in a recent study an efficient structural optimization approach was developed using structural modes to represent the static aeroelastic wing response (both displacement and stress). In this paper, the modal response of general trapezoidal wing structures is approximated using shape sensitivities up to the 2nd order. Also different approaches of computing the derivatives are investigated.

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