Research on the method of judging the docking quality of aviation components based on attitude measurement

Abstract

Butt assembly plays a crucial role in the manufacturing process of aviation products, as its assembly quality directly impacts product performance. Current research on the butt assembly of large cylindrical components mainly focuses on attitude measurement or precise cabin attitude adjustment. However, these studies often overlook the influence of the cabin machining error and the attitude deviation during the docking process, as well as the prediction and assessment method of the docking quality. In this paper, the docking force in the assembly process is used as the evaluation basis of docking quality. The actual geometric docking data model is measured and constructed by a 3D scanner. Through a series of docking experiments, the coupling force data under different spatial attitudes are obtained. The docking quality assessing method of aviation components based on attitude measurement is established by examining the internal relationship between the docking area deviation, the maximum docking deviation distance, the space deviation angle and the maximum relay. This approach advances the quality prediction and assessment technology for large aviation components, offering a novel perspective on the assembly and docking of large aviation structures.