1.郑州工业应用技术学院 机电工程学院,郑州 451150
2.河南省隧道工程机械工程技术研究中心,郑州 451150
3.河南理工大学 机械与动力工程学院,焦作 454003
GUO Wenwen, E-mail: gzh47702@163.com
收稿:2025-02-28,
修回:2025-05-30,
网络首发:2026-07-17,
纸质出版:2026-07-15
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郭稳稳, 王国虎, 原永亮, 等.基于并分支GraphSAGE-GRU的航空发动机剩余使用寿命预测方法[J]. 机械强度,2026,48(7):32-39.
GUO Wenwen,WANG Guohu,YUAN Yongliang,et al. Remaining useful life prediction of aeroengine based on Parallel-GraphSAGE-GRU[J]. Journal of Mechanical Strength,2026,48(7):32-39.
郭稳稳, 王国虎, 原永亮, 等.基于并分支GraphSAGE-GRU的航空发动机剩余使用寿命预测方法[J]. 机械强度,2026,48(7):32-39. DOI: 10.16579/j.issn.1001.9669.2026.07.004.
GUO Wenwen,WANG Guohu,YUAN Yongliang,et al. Remaining useful life prediction of aeroengine based on Parallel-GraphSAGE-GRU[J]. Journal of Mechanical Strength,2026,48(7):32-39. DOI: 10.16579/j.issn.1001.9669.2026.07.004.
目的
2
基于深度学习的航空发动机剩余使用寿命预测,为保障航空发动机的可靠性奠定了基础。然而,现有研究多聚焦于欧氏空间中退化信息的获取,忽视了非欧氏空间中拓扑关系蕴含的额外退化信息。因此,提出了一种基于并分支图节点嵌入学习的门控循环神经网络(Parallel-Graph Node Embedding Learning-Gated Recurrent Unit
Parallel-GraphSAGE-GRU)的航空发动机剩余使用寿命预测方法。
方法
2
首先,基于最大互信息法描述航空发动机监测参数之间的关系,在此基础上,通过固定时间窗口构造图,输入序列获取发动机非欧氏空间的拓扑关系;其次,采用GRU提取欧氏空间中航空发动机时间退化关系;然后,在运行过程的每个时刻将GraphSAGE与GRU的输出隐式向量进行拼接,并通过全连接神经网络映射为航空发动机输入退化信息的剩余使用寿命值;最后,采用航空发动机剩余使用寿命数据集,对所提方法的有效性和先进性进行验证,所提方法的
R
2
最高达到0.988 6。
结果
2
结果表明,该方法能够兼顾预测精度及计算效率,具备良好的可行性。
Objective
2
Deep learning-based remaining useful life (RUL) prediction of aeroengine provides a foundation for guaranteeing the reliability of the aeroengine. However
most researches are devoted to the acquisition of degenerate information in Euclidean space
while topological relations in non-Euclidean space can provide additional degenerate information. Thus
a novel RUL prediction method named parallel graph node embedding learning-gated recurrent unit(Parallel-GraphSAGE-GRU) was proposed in this work.
Methods
2
Firstly
the maximum mutual information method was used to describe the relationships among monitoring parameters of aeroengine. Then
a series of graph inputs was constructed using a fixed time window to obtain topological relations in the non-Euclidean space of the aeroengine. Besides
GRU was used for the acquisition the temporal degradation relations of the monitoring parameters for aeroengine in the Euclidean space. The implicit vectors of GraphSAGE and GRU at each moment were concatenated and mapped to the RUL values of the input degradation information by fully connected neural network. The C-MAPSS dataset was used to validate the effectiveness and advancement of the proposed method
and the best
R
2
of the proposed method reached 0.
988 6.
Results
2
The results indicate that this method is feasible in ensuring prediction accuracy and computational efficiency.
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