基于Kriging模型插值的孔位修正策略

doi:10.7527/S1000-6893.2019.23499

Abstract

Abstract: Hole position accuracy in aircraft assembly directly affects the final assembly quality, while parts to be holed are prone to deformation and overall offset. Therefore, the hole position is generally compensated by reference hole information. In this paper, a method of hole position correction based on the Kriging interpolation is proposed. The Kriging model of theoretical coordinates and the actual deviation of hole position are established through reference hole, and then the deviation of hole to be made is predicted. The prediction root mean square error of each position is given to guide the addition and layout of the reference hole. Finally, the effectiveness of the method under the condition of ultimate deformation or overall translation and rotation is verified by the finite element method and numerical experiments. The hole position estimation error is less than 0.3 mm.

Key words: aircraft assembly, hole position, Kriging interpolation, reference hole, correction strategy

CLC Number:

V262.4

SHI Xunlei, ZHANG Jiwen, LIU Shuntao, CHEN Ken. Correction strategy for hole positions based on Kriging interpolation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(9): 423499-423499.

References 20

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Correction strategy for hole positions based on Kriging interpolation

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