Optimal topology of aircraft rib and spar structures under aeroelastic loads

Bret K. Stanford, Peter D. Dunning

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Several topology optimization problems are conducted within the ribs and spars of a wing box. It is desired to locate the best position of lightening holes, truss/cross-bracing, etc. A variety of aeroelastic metrics are isolated for each of these problems: elastic wing compliance under trim loads and taxi loads, stress distribution, and crushing loads. Aileron effectiveness under a constant roll rate is considered, as are dynamic metrics: natural vibration frequency and flutter. This approach helps uncover the relationship between topology and aeroelasticity in subsonic transport wings, and can therefore aid in understanding the complex aircraft design process which must eventually consider all these metrics and load cases simultaneously.

Original languageEnglish
Title of host publication10th AIAA Multidisciplinary Design Optimization Specialist Conference
Publication statusPublished - 2014
Event10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States
Duration: 13 Jan 201417 Jan 2014

Conference

Conference10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014
CountryUnited States
CityNational Harbor, MD
Period13/01/1417/01/14

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