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Publication
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| Title of Article |
Ground Structures-Based Topology Optimization of
a Morphing Wing Using a Metaheuristic Algorithm |
| Date of Acceptance |
17 August 2021 |
| Journal |
| Title of Journal |
Metals |
| Standard |
ISI |
| Institute of Journal |
Multidisciplinary Digital Publishing Institute (MDPI) |
| ISBN/ISSN |
2075-4701 |
| Volume |
- |
| Issue |
Volume 11, Issue 8 |
| Month |
August |
| Year of Publication |
2021 |
| Page |
1-17 |
| Abstract |
This paper presents multi-objective topology and sizing optimization of a morphing wing
structure. The purpose of this paper is to design a new aircraft wing structure with a tapered shape
for ribs, spars, and skins including a torsion beam for external actuating torques, which is anticipated
to modify the aeroelastic characteristic of the aircraft wing using multi-objective optimization.
Two multi-objective topology optimization problems are proposed employing ground element
structures with high- and low-grid resolutions. The design problem is to minimize mass, maximize
difference of lift effectiveness, and maximize the buckling factor of an aircraft wing subject to aeroelastic
and structural constraints including lift effectiveness, critical speed, and buckling factors.
The design variables include aircraft wing structure dimensions and thickness distribution. The
proposed optimization problems are solved by an efficient multi-objective metaheuristic algorithm
while the results are compared and discussed. The Pareto optimal fronts obtained for all tests were
compared based on a hypervolume metric. The objective function values for Case I and Case II at
10 selected optimal solutions exhibit a range of structural mass as 115.3216–411.6250 kg, 125.0137–
440.5869 kg, lift effectiveness as 1.0514–1.1451, 1.0834–1.1639 and bucking factor as 38.895–1133.1864
Hz, 158.1264–1844.4355 Hz, respectively. The best results reveal unconventional aircraft wing structures
that can be manufactured using additive manufacturing. This research is expected to serve as
a foundation for future research into multi-objective topology optimization of morphing wing structures
based on the ground element framework. |
| Keyword |
aeroelasticity; aircraft wing; internal wing structure; multi-objective evolutionary algorithms; metaheuristics |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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