Material Engineering and Mechanical Manufacturing

Posture and position computing method for aircraft component based on PSO and WSVD

  • Xiaoxu HE ,
  • Pei LEI ,
  • Deng PAN ,
  • Yang YANG ,
  • Xiankun LI ,
  • Zhenbo DENG
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  • 1.Chengdu Aircraft Industrial (Group) Co. Ltd,Chengdu  610092,China
    2.Sichuan Aviation Intelligent Manufacturing Equipment Engineering Technology Research Center,Chengdu  610092,China

Received date: 2022-03-15

  Revised date: 2022-04-19

  Accepted date: 2022-06-17

  Online published: 2022-08-04

Abstract

Posture and position computation is a key part for aligning and joining large aircraft component, which makes significant impacts on accuracy and efficiency. Due to the assembly errors of the aircraft components and the different accuracy requirements of the datum points, the traditional Singular Value Decomposition (SVD) method is usually invalid. Weighted Singular Value Decomposition (WSVD) method can improve the accuracy of the points with higher tolerance requirements by sacrificing the points with lower requirements. However, how to assign weights to the points is still a problem. A method based on Particle Swarm Optimization (PSO) and WSVD is proposed in this paper to solve this problem. The weights of the points is searched by PSO method to assure the transformation residue of each datum point meets its tolerance requirements. Through the application of aircraft digital assembly, the validity of the method was verified.

Cite this article

Xiaoxu HE , Pei LEI , Deng PAN , Yang YANG , Xiankun LI , Zhenbo DENG . Posture and position computing method for aircraft component based on PSO and WSVD[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(7) : 427162 -427162 . DOI: 10.7527/S1000-6893.2022.27162

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