Aeroelastic optimization for overall design of joined wing

被引：0
|
作者：
Li X. [1 ]
Wan Z. [1 ]
Wang X. [2 ]
Li K. [1 ]
Yang C. [1 ]
机构：
[1] School of Aeronautic Science and Engineering, Beihang University, Beijing
[2] Institute of Unmanned System, Beihang University, Beijing
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2023年 / 49卷 / 12期
关键词：
aeroelasticity; joined wing; layout parameters; overall stiffness; wing structure coefficient;
D O I：
10.13700/j.bh.1001-5965.2022.0074
中图分类号：
学科分类号：
摘要：
Due to the connection between the front wing and the rear wing, the aerodynamic and structural characteristics of the joined wing aircraft are different from those of the conventional layout aircraft. The interconnected wings form a complex over-constrained system that has numerous layout parameters, increased multidisciplinary design space and analysis difficulty. The aeroelastic optimization based on the engineering beam theory is carried out to research the influence of different layout parameters on the overall performance of the joined wing, mainly including joint locations, forward/backward sweep angle, positive/negative dihedrals, plate height, taper ratio, and other parameters. Aiming at the minimum structural weight, under the constraints of static aeroelasticity and flutter, the parameters of the wing box section of the joined wing are designed by a genetic algorithm, and the lift-drag characteristics of the optimized model are analyzed by using a high-precision computational fluid dynamics/ computational structural dynamic （CFD/CSD）coupling method. Aeroelastic optimization is used to determine the linked wing's layout characteristics for the best possible structural and aerodynamic performances. The results indicate that the optimal solution set for each important parameter of the joined wing can discover the laws of the joined wing design and provide support for the design. © 2023 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：3343 / 3354
页数：11
相关论文
共 30 条
  • [1] WOLKOVITCH J., Joined wing aircraft
  • [2] CHU L, MA D L, ZHANG S, Et al., Solution model for aerodynamic characteristics of joined-wing configuration, Acta Aeronautica et Astronautica Sinica, 31, 5, pp. 909-913, (2010)
  • [3] WOLKOVITCH J., The joined wing - an overview, Journal of Aircraft, 23, 3, pp. 161-178, (1986)
  • [4] CAVALLARO R, DEMASI L., Challenges, ideas, and innovations of joined-wing configurations: A concept from the past, an opportunity for the future, Progress in Aerospace Sciences, 87, pp. 1-93, (2016)
  • [5] BLAIR M B, CANFIELD R., A joined-wing structural weight modeling study, Proceedings of the 43rd AIAA/ASME/ASCE/ AHS/ASC Structures, Structural Dynamics, and Materials Conference, (2002)
  • [6] LI X Y, WAN Z Q, WANG X Z, Et al., Aeroelastic optimization design of the global stiffness for a joined wing aircraft, Applied Sciences, 11, 24, (2021)
  • [7] SMALLWOOD B, CANFIELD R, TERZUOLI A., Structurally integrated antennas on a joined-wing aircraft, Proceedings of the 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, (2003)
  • [8] KIM Y I, PARK G J, KOLONAY R M, Et al., Nonlinear response structural optimization of a joined wing using equivalent loads, AIAA Journal, 46, 11, pp. 2703-2713, (2008)
  • [9] BOND V L, CANFIELD R A, SULEMAN A, Et al., Aeroelastic scaling of a joined wing for nonlinear geometric stiffness, AIAA Journal, 50, 3, pp. 513-522, (2012)
  • [10] GREEN N, CANFIELD R, SWENSON E, Et al., Structural optimization of joined-wing beam model with bend/twist coupling using ESL, Proceedings of the 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, (2009)
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