arXiv:2510.23667cs.LGcs.AI2025-10NeurIPS被引 6

用AI一键生成任意形状和分辨率的最优结构,速度快、通用性强。

Optimize Any Topology: A Foundation Model for Shape- and Resolution-Free Structural Topology Optimization

  • 构建无网格限制的生成式框架,直接预测复杂边界下的最优结构。
  • 在多个测试中将柔度降低高达90%,单卡推理时间不足1秒。
  • 适合需要快速生成工程结构的设计师和研发团队使用。

结构拓扑优化(TO)是工程设计的核心,但受复杂物理规律和硬约束影响,计算成本高。现有深度学习方法受限于固定方形网格、少数预设边界条件及后期优化,难以推广。我们提出通用型框架OAT,可直接预测任意长宽比、分辨率、体积分数、载荷和夹具条件下的最小柔度布局。OAT结合了与分辨率和形状无关的自编码器、隐式神经场解码器,以及基于220万条优化结构构成的OpenTO数据集训练的条件隐变量扩散模型,覆盖200万种独特边界条件。在四个公开基准和两个新场景测试中,OAT相较最优先前模型平均柔度降低高达90%,并在64×64至256×256分辨率、最高10:1长宽比下实现单卡<1秒推理。该成果确立了物理感知生成式拓扑优化的新范式,并提供了大规模数据集以推动逆向设计研究。代码与数据见:https://github.com/ahnobari/OptimizeAnyTopology。

原文摘要 · Abstract (English)

Structural topology optimization (TO) is central to engineering design but remains computationally intensive due to complex physics and hard constraints. Existing deep-learning methods are limited to fixed square grids, a few hand-coded boundary conditions, and post-hoc optimization, preventing general deployment. We introduce Optimize Any Topology (OAT), a foundation-model framework that directly predicts minimum-compliance layouts for arbitrary aspect ratios, resolutions, volume fractions, loads, and fixtures. OAT combines a resolution- and shape-agnostic autoencoder with an implicit neural-field decoder and a conditional latent-diffusion model trained on OpenTO, a new corpus of 2.2 million optimized structures covering 2 million unique boundary-condition configurations. On four public benchmarks and two challenging unseen tests, OAT lowers mean compliance up to 90% relative to the best prior models and delivers sub-1 second inference on a single GPU across resolutions from 64 x 64 to 256 x 256 and aspect ratios as high as 10:1. These results establish OAT as a general, fast, and resolution-free framework for physics-aware topology optimization and provide a large-scale dataset to spur further research in generative modeling for inverse design. Code & data can be found at https://github.com/ahnobari/OptimizeAnyTopology.

拓扑优化生成模型逆向设计结构设计

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