Integrated wing force transmission analysis method and structural design considering connection

Abstract

The integrated wing embodies the integrated design concept of integrating functional components and load-bearing structures. However，there may be problems in the structure such as discontinuous skin force transmission and difficulty in connecting separation surfaces，which can increase the difficulty of structural design. Therefore，based on the structural characteristics of the integrated wing，an integrated wing force transmission analysis method considering connections is proposed. The connection characteristics at the separation surface of the functional skin design is analyzed，the connection design and structural design are completed，which is verified by finite element analysis and optimization analysis. The results show that the bending moment distribution of the box section calculated by the force transfer analysis method is consistent with the finite element results. The analysis results of the cross-sectional size distribution of the box section structure are similar to the optimization results，which can meet the requirements of connection strength and stability. The larger the effective height of the wing beam in the box section structure，the greater the load it bears，and the more consistent the optimization results with the force transfer analysis results.

Keywords

• integrated wing
• functional skin
• force transmission analysis
• structural separation surface
• finite element analysis