A Fast Re-Modelling Method for Simulation Models by Fusing Geometric Information and Simulation Information

LI Hongqing; NI Chenjun; WANG Bo; CAI Yongming; ZHANG Yinxuan; CHEN Liang; TIAN Kuo

doi:10.21656/1000-0887.460030

Volume 46 Issue 8

Aug. 2025

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Article Navigation > Applied Mathematics and Mechanics > 2025 > 46(8): 947-958

LI Hongqing, NI Chenjun, WANG Bo, CAI Yongming, ZHANG Yinxuan, CHEN Liang, TIAN Kuo. A Fast Re-Modelling Method for Simulation Models by Fusing Geometric Information and Simulation Information[J]. Applied Mathematics and Mechanics, 2025, 46(8): 947-958. doi: 10.21656/1000-0887.460030

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A Fast Re-Modelling Method for Simulation Models by Fusing Geometric Information and Simulation Information

doi: 10.21656/1000-0887.460030

1. Department of Engineering Mechanics, Dalian University of Technology, Dalian, Liaoning 116024, P.R.China;
2. Liaoning Provincial Key Laboratory of Digital Twins for Aircraft Structural, Shenyang 110035, P.R.China;
3. AVIC Shenyang Aircraft Design and Research Institute, Shenyang 110035, P.R.China

Funds:

The National Science Foundation of China(U21A20429)

Received Date: 2025-02-21
Rev Recd Date: 2025-03-09

Available Online: 2025-09-10

Abstract

Abstract

In the design iteration process of complex structures, a large amount of re-modelling and re-analysis is often involved, leading to high computational costs and long processing periods. To address this challenge, a fast re-modelling method for simulation models was proposed by fusing geometric and mesh information. The method can accurately capture and digitally represent the structural features of the complex geometric model. Then, the feature information of the geometric model was trained to drive the automatic re-modelling of the simulation model. Firstly, the quasi-conformal mapping technique was introduced to parameterize the complex surfaces. A fixed number of control points were obtained through the voxel sampling, as a digital representation of the structural features. Secondly, the radial basis function algorithm was used to train the control points of the geometric model before and after modification. The automated re-modelling of the simulation model was realized with the mesh-mapping technique. Finally, to verify the effectiveness and practicality of the proposed method, an aircraft frame structure was used as a case study. Compared with the traditional re-modelling method, the proposed method has a simulation analysis error level of stress at only 0.87%. The number of required human-computer interaction steps decreases by 95.40% and the operation time reduces by 96.67%. The results show that, the proposed method significantly reduces the simulation model re-modelling time while ensuring the simulation accuracy, which achieves the rapid design based on the digital twin between geometric and mesh models.
- complex structure,
- fast re-modelling,
- quasi-conformal mapping,
- control point generation,
- digital twin

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References(36)

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