A dynamic position and orientation deviation computational framework for adhesive-bonded assemblies under time-dependent thermal and mechanical loads

TY - JOUR

T1 - A dynamic position and orientation deviation computational framework for adhesive-bonded assemblies under time-dependent thermal and mechanical loads

AU - Zhang, Jian

AU - Zhang, Fuli

AU - Zhang, Xiumin

AU - Shen, Hongda

AU - Xia, Huanxiong

AU - Liu, Jianhua

N1 - Publisher Copyright: © 2025 Elsevier Inc.

PY - 2026/1

Y1 - 2026/1

N2 - The stability of assembly accuracy stands as a pivotal objective in precision mechanical product design. However, existing approaches for assembly accuracy prediction have predominantly focused on static Position and Orientation Deviations(PODs) induced by positioning non-ideal surfaces. In reality, such deviations dynamically evolve during the adhesive fastening, particularly through time-dependent thermal and mechanical loads. These dynamic alterations critically govern the stability of product accuracy. Therefore, this paper establishes a computational framework for dynamic PODs. The PODs in the positioning stage are identified employing a multi-objective search approach rooted in force equilibrium constraints; the time-dependent geometric variations in adhesives are then determined by a thermal-curing-mechanical coupled Finite Element Method simulation; and the evolution of PODs is quantified by fitting on the non-ideal mating surface poses observed throughout the time-varying process using the Least Squares Method. The case study on a typical coaxial assembly demonstrated that dynamic spatial geometric variations in adhesive have a significant impact on mechanical accuracy and stability. It also confirmed that the proposed framework is capable of providing valuable insights for accurately understanding the stability of mechanical precision.

AB - The stability of assembly accuracy stands as a pivotal objective in precision mechanical product design. However, existing approaches for assembly accuracy prediction have predominantly focused on static Position and Orientation Deviations(PODs) induced by positioning non-ideal surfaces. In reality, such deviations dynamically evolve during the adhesive fastening, particularly through time-dependent thermal and mechanical loads. These dynamic alterations critically govern the stability of product accuracy. Therefore, this paper establishes a computational framework for dynamic PODs. The PODs in the positioning stage are identified employing a multi-objective search approach rooted in force equilibrium constraints; the time-dependent geometric variations in adhesives are then determined by a thermal-curing-mechanical coupled Finite Element Method simulation; and the evolution of PODs is quantified by fitting on the non-ideal mating surface poses observed throughout the time-varying process using the Least Squares Method. The case study on a typical coaxial assembly demonstrated that dynamic spatial geometric variations in adhesive have a significant impact on mechanical accuracy and stability. It also confirmed that the proposed framework is capable of providing valuable insights for accurately understanding the stability of mechanical precision.

KW - Adhesive-bonded assembly

KW - Non-ideal surfaces

KW - Position and orientation deviations

KW - Time-dependent thermo-mechanical loads

KW - Tolerance analysis

UR - https://www.scopus.com/pages/publications/105015145612

U2 - 10.1016/j.precisioneng.2025.09.004

DO - 10.1016/j.precisioneng.2025.09.004

M3 - Article

AN - SCOPUS:105015145612

SN - 0141-6359

VL - 97

SP - 80

EP - 94

JO - Precision Engineering

JF - Precision Engineering

ER -