Research on Digital Twin Assembly Cell Modeling and Quality Optimization Control Framework

WANG Rui; ZHOU Guanghui; ZHANG Chao; MA Dongxu; MEN Songchen; ZOU Yongcheng

doi:10.7652/xjtuxb202605014

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Research on Digital Twin Assembly Cell Modeling and Quality Optimization Control Framework

更新时间：2026-04-27

- Research on Digital Twin Assembly Cell Modeling and Quality Optimization Control Framework
- Journal of Xi'an Jiaotong University Vol. 60, Issue 5, Pages: 142-152(2026)
- 作者机构：
  
  西安交通大学机械工程学院，710049，西安
  西安建筑科技大学理学院，710055，西安
  西安交通大学精密微纳制造技术全国重点实验室，710054，西安
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202605014
  CLC： TH166
- Received：14 July 2025，
  
  Published：10 May 2026
- 稿件说明：
移动端阅览
WANG Rui, ZHOU Guanghui, ZHANG Chao, et al. Research on Digital Twin Assembly Cell Modeling and Quality Optimization Control Framework[J]. Journal of Xi'an Jiaotong University, 2026, 60(5): 142-152.
DOI：

WANG Rui, ZHOU Guanghui, ZHANG Chao, et al. Research on Digital Twin Assembly Cell Modeling and Quality Optimization Control Framework[J]. Journal of Xi'an Jiaotong University, 2026, 60(5): 142-152. DOI： 10.7652/xjtuxb202605014.

摘要

针对复杂产品装配质量保障难题，提出数字孪生正向推演、逆向溯源与靶向优化相结合的装配单元建模与质量管控方法，实现装配质量可视化仿真、预测与全流程优化管控。构建物理层、孪生层与应用层三位一体的数字孪生装配单元参考框架，揭示装配质量动态形成机理与精准调控机制；提出制造误差、装配变形和定位误差多维融合的数字孪生装配单元建模技术，解决传统仅考虑单一误差的建模方法导致的模型不准确的问题；在此基础上，研究基于雅可比矩阵与小位移旋量的装配精度预测方法，构建装配偏差主关联工序/工艺参数精准误差溯源模型，突破装配质量偏差多目标优化与调控技术，形成装配全过程的正向推演、逆向溯源与靶向优化技术体系。开发软硬件集成的数字孪生装配单元原型系统，实现在固体火箭发动机喷管装配过程中的应用验证，有效提升固体火箭发动机喷管装配过程建模精度与质量管控效率。

Abstract

To address the challenge of ensuring assembly quality for complex products

this study proposes an assembly cell modeling and quality control method that integrates digital twin forward deduction

reverse traceability

and targeted optimization

achieving visual simulation

prediction

and full-process optimization control of assembly quality. First

a three-in-one digital twin assembly cell reference framework consisting of a physical layer

a twin layer

and an application layer was constructed to reveal the dynamic formation mechanism and precise regulation mechanism of assembly quality. A digital twin assembly cell modeling technology which integrates multiple dimensions including manufacturing errors

assembly deformations

and positioning errors was proposed

addressing the inaccuracy issues caused by traditional modeling methods that consider only single error sources. Based on this

an assembly accuracy prediction method using Jacobian matrices and small displacement torsors was studied. A precise error traceability model for key assembly deviation-related processes/process parameters was established. Multi-obj ective optimization and control technologies for assembly quality deviations were developed

forming a technical system that integrates forward deduction

reverse traceability

and targeted optimization throughout the entire assembly process. A prototype system for a digital twin assembly cell integrating software and hardware was developed and validated in the assembly process of a solid rocket engine nozzle

effectively improving the modeling accuracy and quality optimization control efficiency of the solid rocket engine nozzle assembly process.

关键词

Keywords

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