Monomer model: an integrated characterization method of geometrical deviations for assembly accuracy analysis
ISSN: 0144-5154
Article publication date: 26 June 2021
Issue publication date: 9 August 2021
Abstract
Purpose
Assembly accuracy is the guarantee of mechanical product performance, and the characterization of the part with geometrical deviations is the basis of assembly accuracy analysis.
Design/methodology/approach
The existed small displacement torsors (SDT) model cannot fully describe the part with multiple mating surfaces, which increases the difficulty of accuracy analysis. This paper proposed an integrated characterization method for accuracy analysis. By analyzing the internal coupling relationship of the different geometrical deviations in a single part, the Monomer Model was established.
Findings
The effectiveness of the Monomer Model is verified through an analysis of a simulated rotor assembly analysis, and the corresponding accuracy analysis method based on the model reasonably predicts the assembly deviation of the rotor.
Originality/value
The Monomer Model realizes the reverse calculation of assembly deformation for the first time, which can be used to identify the weak links that affect the assembly accuracy, thus support the accuracy improvement in the re-assembly stage.
Keywords
Citation
Zhao, B., Wang, Y., Sun, Q., Zhang, Y., Liang, X. and Liu, X. (2021), "Monomer model: an integrated characterization method of geometrical deviations for assembly accuracy analysis", Assembly Automation, Vol. 41 No. 4, pp. 514-523. https://doi.org/10.1108/AA-11-2020-0165
Publisher
:Emerald Publishing Limited
Copyright © 2021, Emerald Publishing Limited