arXiv:2506.15263cs.CEcs.LG2025-06

用生成模型优化板状结构凹槽位置,降低振动噪音。

Minimizing Structural Vibrations via Guided Flow Matching Design Optimization

  • 结合生成模型与代理模型,自动寻找低振动设计
  • 相比随机搜索等方法,振动水平显著降低
  • 适合需要舒适性优化的交通工具结构设计

结构振动是汽车、列车或飞机等工程系统中产生噪音的主要原因,降低振动对提升乘客舒适度至关重要。本文提出一种基于引导流匹配的设计优化新方法,通过在板状结构上布置凹槽(beadings)来减少振动。该方法融合生成流匹配模型与预测结构振动的代理模型:生成过程既推动设计可制造性,又引导至低振动解。流匹配模型及其训练数据隐式定义设计空间,无需手动设定设计参数即可广泛探索潜在方案。我们针对多种可微分优化目标应用该方法,包括通过精心构建目标函数直接优化特定固有频率。结果表明,该方法生成的设计在振动水平上显著优于随机搜索、基于准则的设计启发法及遗传优化方法。代码与数据已公开于 https://github.com/ecker-lab/Optimizing_Vibrating_Plates。

原文摘要 · Abstract (English)

Structural vibrations are a source of unwanted noise in engineering systems like cars, trains or airplanes. Minimizing these vibrations is crucial for improving passenger comfort. This work presents a novel design optimization approach based on guided flow matching for reducing vibrations by placing beadings (indentations) in plate-like structures. Our method integrates a generative flow matching model and a surrogate model trained to predict structural vibrations. During the generation process, the flow matching model pushes towards manufacturability while the surrogate model pushes to low-vibration solutions. The flow matching model and its training data implicitly define the design space, enabling a broader exploration of potential solutions as no optimization of manually-defined design parameters is required. We apply our method to a range of differentiable optimization objectives, including direct optimization of specific eigenfrequencies through careful construction of the objective function. Results demonstrate that our method generates diverse and manufacturable plate designs with reduced structural vibrations compared to designs from random search, a criterion-based design heuristic and genetic optimization. The code and data are available from https://github.com/ecker-lab/Optimizing_Vibrating_Plates.

结构优化生成模型振动控制

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