Shape optimization applied to aircraft wing structures

2010 ◽  
pp. 795-800
Author(s):  
V Anand ◽  
C Bil
Keyword(s):  
Shape Optimization ◽  
Aircraft Wing ◽  
Wing Structures

scholarly journals A finite element parametric modeling technique of aircraft wing structures

2013 ◽  
Vol 26 (5) ◽  
pp. 1202-1210 ◽  
Author(s):  
Jiapeng Tang ◽  
Ping Xi ◽  
Baoyuan Zhang ◽  
Bifu Hu
Keyword(s):  
Finite Element ◽  
Parametric Modeling ◽  
Modeling Technique ◽  
Aircraft Wing ◽  
Wing Structures

scholarly journals Application of an Efficient Gradient-Based Optimization Strategy for Aircraft Wing Structures

Aerospace ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 3 ◽  
Author(s):  
Odeh Dababneh ◽  
Timoleon Kipouros ◽  
James Whidborne
Keyword(s):  
Optimization Strategy ◽  
Aircraft Wing ◽  
Wing Structures ◽  
Gradient Based

scholarly journals Ground Structures-Based Topology Optimization of a Morphing Wing Using a Metaheuristic Algorithm

Metals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1311
Author(s):  
Seksan Winyangkul ◽  
Kittinan Wansaseub ◽  
Suwin Sleesongsom ◽  
Natee Panagant ◽  
Sumit Kumar ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Optimization Problems ◽  
Future Research ◽  
Structural Constraints ◽  
Metaheuristic Algorithm ◽  
Morphing Wing ◽  
Aircraft Wing ◽  
Multi Objective ◽  
Wing Structures ◽  
Wing Structure

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.

Optimum Design of Wing Structures With Multiple Frequency Constraints

1987 ◽  
Author(s):  
V. B. Venkayya ◽  
R. V. Grandhi
Keyword(s):  
Structural Design ◽  
Large Scale ◽  
Optimality Criterion ◽  
Multiple Frequency ◽  
Aircraft Wing ◽  
Design Problems ◽  
Frequency Constraints ◽  
Transport Aircraft ◽  
Scaling Procedure ◽  
Wing Structures

Abstract In this paper, design optimization of aircraft wing structures with multiple frequency constraints is considered. An optimality criterion algorithm along with a scaling procedure has been used. Large scale structural design problems were considered for demonstrating the reliability and efficiency of the algorithm. A simplified fighter wing, an intermediate complexity wing, and a large wing typical of a transport aircraft were considered as design examples. Design histories and the first few frequencies at the initial and final conditions are presented.

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