Aeroelastic Optimization Design of the Global Stiffness for a Joined Wing Aircraft
Source abstract
Abstract
Due to the complexity and particularity of the joined wing layout, traditional design methods for the global stiffness of a high-aspect wing are not applicable for a joined wing. Herein, a beam-frame model and a three-dimensional wing-box model are built to solve the global stiffness aeroelastic optimization design problem for a joined wing. The goal is to minimize the weight, and the constraints are the overall aeroelastic requirements. Based on a genetic algorithm, two methods for the beam-frame model and one method for the three-dimensional model are used for comparative analysis. The results show that the optimization method for a diagonal beam section and the optimization method for an exponential/linear combination function fit are adequate for optimizing and designating the joined wing global stiffness. The distributions obtained using the two methods have good consistency and are similar to the distribution of the three-dimensional model. The stiffness distribution data and the beam section parameters can be converted from each other, which is convenient for redesigning the structure parameters using the stiffness distribution data, and is valuable for engineering applications.
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Research context
OpenAlex topics: Aeroelasticity and Vibration Control · Advanced Aircraft Design and Technologies · Probabilistic and Robust Engineering Design
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
Institute of Unmanned System, Beihang University, Beijing 100191, China
Funding
Zhe Jiang Key laboratory of General Aviation Operation technology (General Aviation Insti-tute of Zhejiang JianDe)
References (37)
Show source-provided references
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