Optimum Design of UAV Wing Skin Structure with a High Aspect Ratio Using Variable Laminate Stiffness

This paper quickly calculated the design variables to satisfy the strength and stability conditions, the dominant design verification conditions of the composite wing structure, through a genetic algorithm. It developed a variable stiffness stacking optimization process applicable to aircraft wing s...

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Main Authors: Jun-Hwan Jang, Sang-Ho Ahn
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/19/9436
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author Jun-Hwan Jang
Sang-Ho Ahn
author_facet Jun-Hwan Jang
Sang-Ho Ahn
author_sort Jun-Hwan Jang
collection DOAJ
description This paper quickly calculated the design variables to satisfy the strength and stability conditions, the dominant design verification conditions of the composite wing structure, through a genetic algorithm. It developed a variable stiffness stacking optimization process applicable to aircraft wing structure design. We proposed a laminate parameter-based optimization strategy that considers the stiffness characteristics of the two-dimensional elements used as design variables. Compared with the optimization results obtained using continuous stiffness optimization as an optimization process function of laminate sequences with genetic algorithms, we obtained a reasonable stiffness distribution while complying with critical guidelines related to individual composite layup designs. The results of the stiffness optimization design were implemented as a finite element model, and the results were verified through NASTRAN. We demonstrated the functionality of the stiffness optimization process by obtaining results satisfying the set response conditions, i.e., strength and stability, in many design areas of the wing.
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spelling doaj.art-c1e35c921b0741b0be1c8b39e4d0ee812023-11-23T19:39:30ZengMDPI AGApplied Sciences2076-34172022-09-011219943610.3390/app12199436Optimum Design of UAV Wing Skin Structure with a High Aspect Ratio Using Variable Laminate StiffnessJun-Hwan Jang0Sang-Ho Ahn1Department of Mechanical Design, Yuhan University, Bucheon 13809, KoreaDepartment of Mechanical & Automotive Engineering, Shinhan University, Uijeongbu 11644, KoreaThis paper quickly calculated the design variables to satisfy the strength and stability conditions, the dominant design verification conditions of the composite wing structure, through a genetic algorithm. It developed a variable stiffness stacking optimization process applicable to aircraft wing structure design. We proposed a laminate parameter-based optimization strategy that considers the stiffness characteristics of the two-dimensional elements used as design variables. Compared with the optimization results obtained using continuous stiffness optimization as an optimization process function of laminate sequences with genetic algorithms, we obtained a reasonable stiffness distribution while complying with critical guidelines related to individual composite layup designs. The results of the stiffness optimization design were implemented as a finite element model, and the results were verified through NASTRAN. We demonstrated the functionality of the stiffness optimization process by obtaining results satisfying the set response conditions, i.e., strength and stability, in many design areas of the wing.https://www.mdpi.com/2076-3417/12/19/9436slender winggenetic algorithmvariable stiffnesscomposite structurehigh aspect ratiooptimization
spellingShingle Jun-Hwan Jang
Sang-Ho Ahn
Optimum Design of UAV Wing Skin Structure with a High Aspect Ratio Using Variable Laminate Stiffness
Applied Sciences
slender wing
genetic algorithm
variable stiffness
composite structure
high aspect ratio
optimization
title Optimum Design of UAV Wing Skin Structure with a High Aspect Ratio Using Variable Laminate Stiffness
title_full Optimum Design of UAV Wing Skin Structure with a High Aspect Ratio Using Variable Laminate Stiffness
title_fullStr Optimum Design of UAV Wing Skin Structure with a High Aspect Ratio Using Variable Laminate Stiffness
title_full_unstemmed Optimum Design of UAV Wing Skin Structure with a High Aspect Ratio Using Variable Laminate Stiffness
title_short Optimum Design of UAV Wing Skin Structure with a High Aspect Ratio Using Variable Laminate Stiffness
title_sort optimum design of uav wing skin structure with a high aspect ratio using variable laminate stiffness
topic slender wing
genetic algorithm
variable stiffness
composite structure
high aspect ratio
optimization
url https://www.mdpi.com/2076-3417/12/19/9436
work_keys_str_mv AT junhwanjang optimumdesignofuavwingskinstructurewithahighaspectratiousingvariablelaminatestiffness
AT sanghoahn optimumdesignofuavwingskinstructurewithahighaspectratiousingvariablelaminatestiffness