Wallboard assembly and skeleton pose coordination method

Abstract

The invention provides a wallboard assembly and skeleton pose coordination method. The method comprises the following steps: calculating an assembly gap at each wing rib of an aircraft wing box; obtaining the measurement data of the key feature points of the wall plate and the measurement data of the key feature points of the skeleton after the thermal elastic deformation of the wing box is eliminated, and constructing a least square objective function Fobj based on the weighted norm of the three-dimensional coordination error of the key feature point sets of the wall plate and the skeleton; and in combination with the weighted norm of the multi-region assembly gap, reconstructing a wing box wall plate and skeleton pose coordination objective function to solve pose coordination parameters which minimize the comprehensive evaluation index of the wing box wall plate and skeleton key feature point set coordination error weighted norm and the multi-region assembly gap weighted norm, and taking the pose coordination parameters as an optimal pose coordination parameter output result. By means of the method, the pose coordination parameters between the wall plate and the framework can be rapidly and accurately obtained, a reliable basis is provided for follow-up assembly clearance suppression and assembly deviation control, and the aircraft assembly quality and efficiency are improved.

Description

technical field [0001] The invention relates to the field of aircraft assembly, in particular to an improved method for coordinating the position and posture of an aircraft wing box panel assembly and a skeleton. Background technique [0002] In the digital assembly system of aircraft wing box, the position and posture coordination and alignment of the panel and the skeleton are realized by using the panel attitude adjustment and positioning system. First, the position and orientation coordination parameters are calculated based on the best matching principle, and then the multi-NC positioners are used for coordinated movement. , to realize the adjustment of the pose of the wall panel and its matching operation with the wing box skeleton. However, large aircraft wing box components are large in size and complex in geometry, and are easily deformed by temperature and other influences, resulting in the appearance of wing box assembly gaps, and the assembly gap between the wall...

AI Technical Summary

Problems solved by technology

However, large aircraft wing box components are large in size and complex in geometry, and are easily deformed by temperature and other influences, resulting in the appearance of wing box assembly gaps, and the assembly gap between the wall plate and the skeleton is distributed in multiple regions. If the relative pose of the wall plate and the wing box frame is not good, it may lead to a large assembly gap in the local area of ​​the wing box

In the prior art, in the pose coordination algorithm between the wing box wall panel and the skeleton, the comprehensive influence of various deformation factors on the wing box assembly cannot be fully considered, and the effective assembly pose coordination parameters cannot be accurately calculated, resulting in the final poor assembly

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