GraphDGM: A Generative Data-Driven Design Approach for Frame and Lattice Structures

被引：0

作者：

Yang, Zhenling ^{[1
]}

Guo, Yilin ^{[1
]}

Sun, Zhi ^{[1
,2
]}

Elkhodary, Khalil I. ^{[3
]}

Feng, Fuyong ^{[4
,5
]}

Kang, Zhong ^{[6
]}

机构：

[1] State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian

[2] International Research Center for Computational Mechanics, Dalian University of Technology, Dalian

[3] The Department of Mechanical Engineering, The American University in Cairo, New Cairo

[4] China North Artificial Intelligence & Innovation Research Institute, Beijing

[5] Collective Intelligence & Collaboration Laboratory, Beijing

[6] China North Vehicle Research Institute, Beijing

来源：

Journal of Mechanical Design | 2025年 / 147卷 / 10期

关键词：

data-driven; generative artificial intelligence; inverse design; multiobjective;

D O I：

10.1115/1.4068106

中图分类号：

学科分类号：

摘要：

Generative artificial intelligence offers a more efficient solution for the design of structures. However, an inverse generation of structures, which meet multiple design objectives, remains an open problem. This article thus focuses on the inverse design of frame structures and proposes Graph-based Diffusion-Generative Multiobjective design (GraphDGM), a graph-based generative data-driven surrogate model constrained by multiple targets. By integrating the finite element method (FEM), we construct datasets of frame structures subjected to various conditions. We then developed a conditional graph generation model based on the denoising diffusion probabilistic models (DDPM) and the attention mechanism. We show that our method can efficiently accomplish the inverse design of various frame structures, including a vehicle’s skeleton subjected to five simultaneous constraints. Furthermore, we present comparative experiments against baseline methods to demonstrate the effectiveness and superiority of the GraphDGM. Copyright © 2025 by ASME.

引用

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