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arXiv 2602.00384cs.LG
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用于在性能和参数约束下生成参数化工程设计的RePaint增强条件扩散模型

RePaint-Enhanced Conditional Diffusion Model for Parametric Engineering Designs under Performance and Parameter Constraints

Simon Fraser University(西蒙弗雷泽大学)

Ke Wang, Nguyen Gia Hien Vu, Yifan Tang, Mostafa Rahmani Dehaghani, G. Gary Wang

AI总结:

RePaint增强条件扩散模型在性能和参数约束下实现高效可控的参数化工程设计生成。

摘要:

本文提出了一种RePaint增强框架,该框架整合了预训练的性能引导去噪扩散概率模型(DDPM),用于在性能和参数约束下生成工程设计。所提出的方法能够在部分参考设计的基础上生成缺失的设计组件,同时满足性能约束,而无需重新训练底层模型。通过在推理过程中应用基于掩码的重采样,RePaint允许在性能和参数约束下高效且可控地重绘部分设计,这在传统DDPM基础方法中是不支持的。该框架在两个具有代表性的设计问题上进行了评估,即参数化船体设计和机翼设计,展示了其基于部分参考设计生成具有预期性能的新设计的能力。结果表明,该方法在准确率上与预训练模型相当或更好,同时通过固定部分设计实现可控的创新性。总体而言,所提出的方法为工程应用中的参数约束感知生成设计提供了一种高效、无需训练的解决方案。

英文摘要:

This paper presents a RePaint-enhanced framework that integrates a pre-trained performance-guided denoising diffusion probabilistic model (DDPM) for performance- and parameter-constraint engineering design generation. The proposed method enables the generation of missing design components based on a partial reference design while satisfying performance constraints, without retraining the underlying model. By applying mask-based resampling during inference process, RePaint allows efficient and controllable repainting of partial designs under both performance and parameter constraints, which is not supported by conventional DDPM-base methods. The framework is evaluated on two representative design problems, parametric ship hull design and airfoil design, demonstrating its ability to generate novel designs with expected performance based on a partial reference design. Results show that the method achieves accuracy comparable to or better than pre-trained models while enabling controlled novelty through fixing partial designs. Overall, the proposed approach provides an efficient, training-free solution for parameter-constraint-aware generative design in engineering applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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