Robustness optimization for rapid prototyping of functional artifacts based on visualized computing digital twins

Jinghua Xu; Kunqian Liu; Linxuan Wang; Hongshuai Guo; Jiangtao Zhan; Xiaojian Liu; Shuyou Zhang; Jianrong Tan

doi:10.1186/s42492-023-00131-w

Robustness optimization for rapid prototyping of functional artifacts based on visualized computing digital twins

Vis Comput Ind Biomed Art. 2023 Feb 27;6(1):4. doi: 10.1186/s42492-023-00131-w.

Authors

Jinghua Xu^{1

2

3

4}, Kunqian Liu³, Linxuan Wang³, Hongshuai Guo³, Jiangtao Zhan⁵, Xiaojian Liu^{6

7}, Shuyou Zhang^{1

2

3}, Jianrong Tan^{1

2

3}

Affiliations

¹ State Key Lab of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310058, China.
² Key Lab of Advanced Manufacturing Technology of Zhejiang Province, Zhejiang University, Hangzhou 310058, China.
³ Engineering Research Center for Design Engineering and Digital Twin of Zhejiang Province, Zhejiang University, Hangzhou 310058, China.
⁴ Zhejiang-Singapore Innovation and AI Joint Research Lab, Zhejiang University, Hangzhou 310058, China.
⁵ School of Creative Arts and design, Zhejiang Institute of Mechanical and Electrical Engineering, Hangzhou 310053, China. zhanjiangtao@zime.zj.cn.
⁶ Engineering Research Center for Design Engineering and Digital Twin of Zhejiang Province, Zhejiang University, Hangzhou 310058, China. liuxj@zju.edu.cn.
⁷ Ningbo Research Institute, Zhejiang University, Ningbo 315100, China. liuxj@zju.edu.cn.

Abstract

This study presents a robustness optimization method for rapid prototyping (RP) of functional artifacts based on visualized computing digital twins (VCDT). A generalized multiobjective robustness optimization model for RP of scheme design prototype was first built, where thermal, structural, and multidisciplinary knowledge could be integrated for visualization. To implement visualized computing, the membership function of fuzzy decision-making was optimized using a genetic algorithm. Transient thermodynamic, structural statics, and flow field analyses were conducted, especially for glass fiber composite materials, which have the characteristics of high strength, corrosion resistance, temperature resistance, dimensional stability, and electrical insulation. An electrothermal experiment was performed by measuring the temperature and changes in temperature during RP. Infrared thermographs were obtained using thermal field measurements to determine the temperature distribution. A numerical analysis of a lightweight ribbed ergonomic artifact is presented to illustrate the VCDT. Moreover, manufacturability was verified based on a thermal-solid coupled finite element analysis. The physical experiment and practice proved that the proposed VCDT provided a robust design paradigm for a layered RP between the steady balance of electrothermal regulation and manufacturing efficacy under hybrid uncertainties.

Keywords: Functional artifacts; Fuzzy decision-making; Infrared thermographs; Rapid prototyping; Robustness optimization design; Visualized computing digital twins.

Grants and funding

51935009/National Natural Science Foundation of China