Design and validation of eccentric beam for variable camber trailing edge

ZHANG Sheng; YANG Yu; WANG Zhigang; SHI Xintong

doi:10.7527/S1000-6893.2021.25892

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2022 , Vol. 43 >Issue 6: 525892 - 525892

DOI: https://doi.org/10.7527/S1000-6893.2021.25892

Articles

Design and validation of eccentric beam for variable camber trailing edge

ZHANG Sheng ,
YANG Yu ,
WANG Zhigang ,
SHI Xintong

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Aircraft Strength Research Institute of China, Xi'an 710065, China

Received date: 2021-05-31

Revised date: 2022-05-10

Online published: 2022-07-07

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Abstract

The trailing edge structure of flexible wing with variable curvature based on the bending deformation of base plate is difficult to deform accurately, and has poor bearing capacity. A driving structure for the eccentric beam with multiple morphing control points is proposed. Connection between the eccentric beam and the flexible trailing edge structure is designed. According to the requirement of the deformation target, a simplified parameterized nonlinear model code is developed by ABAQUS secondary development, and a program based on particle swarm optimization and the model code is developed for optimization of numbers and positions of control points. The compensated displacement in morphing control points is calculated by loads analysis. A non-contact measurement system is built to test the deformation of the structure. The results show that the deflection angle of the structure reaches 15°, the contour after deformation is in good agreement with the deformation target, and the error at the tip is within 2 mm. The structure driving scheme and optimization method are thus verified to be feasible.

Key words： variable camber trailing edge; eccentric beam; morphing control point; particle swarm optimization; optimal analysis

Cite this article

ZHANG Sheng , YANG Yu , WANG Zhigang , SHI Xintong . Design and validation of eccentric beam for variable camber trailing edge[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022 , 43(6) : 525892 -525892 . DOI: 10.7527/S1000-6893.2021.25892

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