Optimal topology of aircraft rib and spar structures under aeroelastic loads

Bret K. Stanford; Peter D. Dunning

Optimal topology of aircraft rib and spar structures under aeroelastic loads

Bret K. Stanford, Peter D. Dunning

Engineering

Research output: Chapter in Book/Report/Conference proceeding › Published conference contribution

6 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 language	English
Title of host publication	10th AIAA Multidisciplinary Design Optimization Specialist Conference
Publisher	NASA
Pages	1-23
Number of pages	23
Publication status	Published - 13 Jan 2014
Event	10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States Duration: 13 Jan 2014 → 17 Jan 2014

Conference

Conference	10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014
Country/Territory	United States
City	National Harbor, MD
Period	13/01/14 → 17/01/14

Bibliographical note

This work is funded by the Fixed Wing project under NASA’s Fundamental Aeronautics Program.

Access to Document

https://ntrs.nasa.gov/api/citations/20140007307/downloads/20140007307.pdfLicence: Unspecified

Cite this

Stanford, BK & Dunning, PD 2014, Optimal topology of aircraft rib and spar structures under aeroelastic loads. in 10th AIAA Multidisciplinary Design Optimization Specialist Conference. NASA, pp. 1-23, 10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014, National Harbor, MD, United States, 13/01/14. <https://ntrs.nasa.gov/api/citations/20140007307/downloads/20140007307.pdf>

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title = "Optimal topology of aircraft rib and spar structures under aeroelastic loads",

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.",

author = "Stanford, {Bret K.} and Dunning, {Peter D.}",

note = "This work is funded by the Fixed Wing project under NASA{\textquoteright}s Fundamental Aeronautics Program.; 10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014 ; Conference date: 13-01-2014 Through 17-01-2014",

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N2 - 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.

AB - 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.

UR - https://ntrs.nasa.gov/citations/20140007307

M3 - Published conference contribution

SP - 1

EP - 23

BT - 10th AIAA Multidisciplinary Design Optimization Specialist Conference

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T2 - 10th AIAA Multidisciplinary Design Optimization Specialist Conference - SciTech Forum and Exposition 2014

Y2 - 13 January 2014 through 17 January 2014

ER -

Optimal topology of aircraft rib and spar structures under aeroelastic loads

Abstract

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Bibliographical note

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