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基于强化学习的拓优化,用于生成性设计的轻量结构
Keerthi Kumar N1, Manasa C M2, Pavan Kumar B K3
1Department of Mechanical Engineering, BMS Institute of Technology and Management, Bangalore, Karnataka 560064, India.
MethodsX
|August 18, 2025
概括
本研究介绍了一种使用深度强化学习用于轻质机械结构的AI生成设计框架. 该方法在满足工程限制的同时实现了显著的重量减轻,使得快速的3D打印原型成为可能.
科学领域:
- 机械工程 机械工程
- 人工智能的人工智能
- 计算设计的计算设计.
背景情况:
- 传统的生成性设计方法经常与复杂的约束和可制造性作斗争.
- 为轻质结构优化材料布局,需要平衡性能和生产可行性.
研究的目的:
- 为轻量级,可制造的机械结构开发一个人工智能驱动的生成设计框架.
- 将拓优化与深度强化学习相结合,以实现高效的材料布局设计.
- 通过物理信息学习和高级处理来确保结构可靠性和可制造性.
主要方法:
- 利用深度强化学习,特别是近接政策优化 (PPO),用于拓优化.
- 集成的有限元分析 (FEA) 用于基于物理的训练和约束坚持 (Von Mises应力 ≤ 300 MPa,位移 ≤ 0.5 mm).
- 员工签名距离场 (SDF) 整平以实现可制造性,并生成用于3D打印的STL文件.
主要成果:
- 与SIMP和水平设置技术等传统方法相比,减轻了高达40%的重量.
- 在定义的工程约束下,在维护结构合规性方面表现出卓越的性能.
- 通过对轻量级轮和拓优化数据集 (ToD) 的案例研究成功验证.
结论:
- 由人工智能驱动的框架有效地产生了轻量级和可制造的机械设计.
- 整合PPO,FEA和SDF光滑增强了设计优化和现实世界的适用性.
- 该方法提供了快速的设计到原型的过渡,适合各种工程应用.
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