使用不同的基于AI的符号回归技术,估计双轴负载轨道和通道冷成型复合体柱的强度
Ahmed M Ebid1, Mohamed A El-Aghoury2, Kennedy C Onyelowe3
1Faculty of Engineering and Technology, Future University in Egypt, New Cairo, Egypt. ahmed.abdelkhaleq@fue.edu.eg.
Scientific reports
|August 21, 2024
概括
人工智能模型准确地预测了薄壁钢柱的强度. 这些人工智能模型,包括基因化的粒子回归 (EPR),显著优于传统的设计代码,为结构工程应用提供了更简单,更可靠的分析.
科学领域:
- 结构工程 结构工程
- 计算力学 计算力学 计算力学
- 人工智能的人工智能
背景情况:
- 薄壁钢材配置文件对于具有成本效益和轻量结构至关重要.
- 分析这些元素是复杂的,因为当地和全球的曲效应相结合,挑战传统方法.
研究的目的:
- 使用基于AI的符号回归来估计双轴加载冷成型复合体柱的强度.
- 开发闭式方程,以便在结构分析中实际应用.
主要方法:
- 收集了90个记录的数据库从以前的研究.
- 应用了三种人工智能技术:基因编程 (GP),基因化粒子回归 (EPR) 和数据处理神经网络 (GMDH-NN) 的组方法.
- 使用本地和全球细度比率和相对异常度作为预测容量 (F/Fy) 的输入.
主要成果:
- 人工智能模型实现了6%的预测误差,明显优于AISI和EC3设计代码的33%误差.
- 基因化的粒子回归 (EPR) 模型证明了最简单的闭式方程.
- 灵敏度分析确定了全球细度比 (λ) 是对柱体强度最有影响的因素.
结论:
- 基于人工智能的符号回归为分析薄壁钢柱提供了比传统设计代码更好的替代方案.
- 开发的AI模型为结构强度预测提供了准确和实用的闭式方程.
- 了解细度比率和奇点的影响是优化柱子设计的关键.
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