Three-dimensional large deformation reconstruction for slender wing-like structures from strain measurements

Meng, Yunxiao; Xie, Chunhong; An, Chao; Xu, Qiuyi; Yang, Chao

doi:10.1016/j.measurement.2022.111969

Cited by 6 publications

(1 citation statement)

References 31 publications

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“…Three-dimensional scanners with multiple optical trackers are distributed around the target in the measurement space, providing the simultaneous control of the attitude and scanning trajectory of the 3D scanner for the precision measurement of large aerospace components [15]. Based on this method, Yang Meng et al from Beijing University of Aeronautics and Astronautics developed a reconstruction method for the 3D deformation of large aerospace components with slender beam-like structures; the change in the process in this case of applied heavy load deformation was tested by the simulation of the wing model [16]. However, if the applied load is too large, its profitable bending deformation will be even more significant, making it difficult to describe large deformations accurately.…”

Section: Introductionmentioning

confidence: 99%

Study on Dynamic Scanning Trajectory of Large Aerospace Parts Based on 3D Scanning

Li,

Wang,

et al. 2024

Aerospace

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The aim of manufacturing large aerospace parts for the three-dimensional scanning field demands high precision and efficiency. However, it may be more challenging to meet the full coverage of the measurement problems for large aerospace parts with the scanning range of traditional three-dimensional scanning methods. This paper establishes a dynamic posturing scanning measurement system for large aerospace parts with a six-degree-of-freedom posturing platform and a six-degree-of-freedom industrial robot linkage. It establishes a mathematical model of dynamic three-dimensional scanning posturing. It proposes a platform attitude adjustment strategy based on the field of view angle of a 3D scanner during the adjustment of a six-degree-of-freedom platform. The dynamic scanning path planning is carried out using the three-dimensional spatial decomposition method, and the vector coordinates of the critical points at the edges of the missing areas of the scan are used to re-scan the missing areas to establish the dynamic scanning paths of large aerospace parts. It is experimentally verified that the system can realize the dynamic scanning of complex curved large aerospace parts. The experimental results show that the measurement efficiency is improved by more than 75%, and the point cloud coverage of the scanning reconstruction is improved by 18% for large aerospace components with complex surfaces.

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Section: Introductionmentioning

confidence: 99%