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Published in: The International Journal of Advanced Manufacturing Technology 9-10/2024

26-02-2024 | ORIGINAL ARTICLE

A novel prediction method for assembly accuracy of rudder systems considering clearance factors

Authors: Wei Wei, Xiaokai Mu, Wei Zhang, Haitao Jiang, Xiaobo Ji, Qingchao Sun, Wei Sun

Published in: The International Journal of Advanced Manufacturing Technology | Issue 9-10/2024

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Abstract

Assembly accuracy is an important index for measuring the assembly quality of a rudder system, which determines the attitude control accuracy of aircraft to a certain extent. In addition, the fit clearance between parts is an important factor affecting assembly accuracy. The manufacturing errors and assembly deformations of parts in the assembly process are the main factors that affect the fitting clearances. To reveal the effect of the fitting clearances on the assembly accuracy of a rudder system, this study focuses on a method for establishing an assembly accuracy prediction model that comprehensively considers the fitting clearances of the components. First, based on the small displacement torsor theory and homogeneous coordinate transformation theory, the error characterisation method and the system error transfer accumulation model construction method are studied. Second, the error models of plane and cylindrical features are constructed according to the error characterisation method. Third, the method of obtaining the actual fitting clearance of the fit surface by the least square method is studied, and the system assembly accuracy prediction model considering the fitting clearance factors of parts is constructed. Finally, taking a certain type of rudder system as an example, the assembly accuracy prediction model is analysed and verified. The results show that the existence of a fitting clearance in the assembly process leads to a lag in the deflection phase of the rudder system, and the deflection angle error at the end of the system can be 0.0139°. Therefore, the influence of fitting clearance on the assembly accuracy of the rudder system cannot be ignored. The method presented provides theoretical and technical support for the optimisation design and performance prediction of rudder systems.

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Metadata
Title
A novel prediction method for assembly accuracy of rudder systems considering clearance factors
Authors
Wei Wei
Xiaokai Mu
Wei Zhang
Haitao Jiang
Xiaobo Ji
Qingchao Sun
Wei Sun
Publication date
26-02-2024
Publisher
Springer London
Published in
The International Journal of Advanced Manufacturing Technology / Issue 9-10/2024
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-024-13264-w

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