具有集成梯度的循环神经网络 解释如何预测形状记忆合金的歇斯底里行为
Dmytro Tymoshchuk1, Oleh Yasniy1, Iryna Didych2
1Department of Artificial Intelligence Systems and Data Analysis, Ternopil Ivan Puluj National Technical University, 46001 Ternopil, Ukraine.
Sensors (Basel, Switzerland)
|January 10, 2026
概括
这项研究使用反复的神经网络来预测形状记忆合金歇斯底里,实现高精度. LSTM网络展示了卓越的预测和推断能力,证实了模型的物理可信性.
科学领域:
- 材料科学 材料科学 材料科学
- 计算材料科学科学 计算材料科学
- 机器学习应用 机器学习应用
背景情况:
- 形状记忆合金 (SMA) 呈现出复杂的歇斯底里行为,这对于它们的应用至关重要.
- 准确预测SMA歇斯底里症是具有挑战性的,因为非线性和循环依赖的效应.
- 循环神经网络 (RNN) 提供了一个有前途的方法来建模这种复杂的物质反应.
研究的目的:
- 开发和评估经常性神经网络模型来预测SMA的歇斯底里行为.
- 为了比较SimpleRNN,LSTM和GRU架构在捕获SMA歇斯底里的性能.
- 评估训练模型对独立数据的概括和推断能力.
主要方法:
- 从7个频率 (0.1-10 Hz) 的100-250个加载-卸载周期生成数据集.
- 输入特征:施加的应力 (σ),循环数 (N) 和加载-卸载阶段 (上下). 输出:材料应变 (ε).
- 模型培训和验证使用80/20分割 (培训/测试) 与内部验证,使用LSTM,GRU和SimpleRNN.
主要成果:
- 所有的RNN架构在测试集上都取得了极好的准确性 (R2>0.999).
- LSTM网络在各种频率上展示了最高的准确性和最稳定的外推.
- 综合梯度分析显示压力是主导因素,周期数表明疲劳影响.
结论:
- 经常性神经网络,特别是LSTM,对于预测SMA歇斯底里症是有效的.
- 这些模型准确地捕捉复杂的行为,并表现出良好的概括性.
- 可解释性分析证实了模型预测的物理相关性,提高了对其应用的信心.
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