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在FDM制造的PLA组件中进行强大的断裂能量预测的Metaheuristic驱动的集体学习
Volkan Ates1, Mehmet Eker2, Ramazan Gungunes3
1Department of Computer Engineering, Tarsus University, Mersin 33400, Turkey.
Polymers
|February 27, 2026
概括
这项研究改善了沉积模型 (FDM) 打印的聚乳酸 (PLA) 部件的冲击性预测. 一个机器学习组合在预测断裂能量的准确性方面取得了37.3%的改进.
科学领域:
- 材料科学 材料科学 材料科学
- 制造业 工程 制造工程
- 聚合物科学 聚合物科学
背景情况:
- 增材制造 (AM),特别是沉积建模 (FDM),提供了复杂几何形状的多功能制造.
- 聚乳酸 (PLA) 是一个受欢迎的可生物降解聚合物,因为它的刚性和可加工性.
- 用FDM打印的PLA表现出脆性和异构性,挑战其结构可靠性和断裂力学.
研究的目的:
- 通过使用冲击测试来评估FDM加工的PLA的冲击性.
- 通过Taguchi设计实验 (DoE) 调查制造参数对冲击行为和断裂能量的影响.
- 通过使用先进的机器学习框架,开发对冲击性的高准确性预测模型.
主要方法:
- 在FDM加工的PLA Izod标本上进行冲击试验.
- 塔古奇L27直角阵列用于设计实验 (DOE) 来研究制造参数.
- 一个两阶段的机器学习框架,涉及数学公式与自然启发的优化算法 (GWO,SMA,GSA,FPA,KH) 的混合,以及元启发式组合集成.
主要成果:
- 塔古奇能源部确定了影响冲击行为和断裂能量的关键制造参数.
- 混合机器学习组合显著提高了对冲击性的预测准确性.
- 平均绝对百分比误差 (MAPE) 达到5.0847%,比最好的单个模型相对改善37.3%.
结论:
- 该研究成功地优化了FDM打印的PLA对冲击性的预测.
- 先进的机器学习组合为了解和预测AM材料的机械性能提供了强大的工具.
- 这些发现对于在苛刻的应用中提高FDM打印PLA的结构可靠性至关重要.
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