Effects of assembly errors and bonding defects on the centroid drift of a precision sleeve structure

Abstract

Adhesive joints are widely used in precision electromechanical products, and their bonding process has significant effects on the performance of an assembled product. This paper presents a numerical study on the bonding assembly of a sleeve structure of a precision inertial device using a finite element method, where the stresses due to curing and relaxation behaviors are considered. The effects of assembly errors and bonding defects on the centroid drift of the sleeve structure were found and analyzed quantitatively. This study can help understand the zero-drift mechanism of the precision inertial device and contribute valuable data for its error compensation.

Keywords

Bonding process / Adhesive joint / Precision assembly / Centroid drift

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Funding

Beijing Natural Science Foundation(No. 3204054)

National Natural Science Foundation of China http://dx.doi.org/10.13039/501100001809(No. 51935003)

National Fundamental Scientific Research(No. JCKY2019203B031)