基于分布式时空卷积网络的航空发动机剩余使用寿命预测
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中北大学仪器与电子学院 太原 030051

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TN807;TP319.5

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山西省中央引导地方科技发展自由探索类基础研究项目(YDZJSX2022A027)资助


Distributed spatio-temporal convolutional network for remaining useful life prediction of turbofan engines
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School of Instrumentation and Electronics, North University of China,Taiyuan 030051, China

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    摘要:

    为解决当前数据驱动航空发动机RUL预测方法因未能充分挖掘数据特征信息,导致数据利用率低、预测精度受限的问题,提出一种新型发动机RUL多尺度预测模型,称为DSCN。所提出方法首先通过计算皮尔逊相关系数和最大信息系数捕捉发动机数据的线性及非线性关系,得到平稳与非平稳时序的趋势特征;其次,利用MRFM丰富数据特征,并在TCN基础上构建Res-CAM和MHAM增强模型对关键信息的捕捉能力,动态调整数据的动态权重。所提出方法在C-MAPSS数据集中FD001和FD003上进行试验验证,预测结果中RMSE和Score分别为11.30、218.08;12.04、227.65。结果表明,该方法比目前最优方法在Score上分别降低了4.67%和11.5%。

    Abstract:

    To address the current limitations in data-driven remaining useful life (RUL) prediction methods for turbofan engines, which suffer from low data utilisation and constrained prediction accuracy due to inadequate exploitation of data feature information, a novel multi-scale RUL prediction model for engines is proposed. This model is termed the distributed spatio-temporal convolutional network (DSCN). The proposed method first captures linear and non-linear relatonships in engine data by calculating Pearson correlation coefficients and maximum information coefficients, thereby obtaining trend features for both stationary and non-stationary time series. Secondly, it employs a multi-scale residual fusion module to enrich data features. Building upon temporal convolutional network (TCN), it incorporates residual channel attention module (Res-CAM) and multi-head attention module (MHAM) to enhance the model′s ability to capture critical information, dynamically adjusting the weights of the data. The proposed method was experimentally validated on the FD001 and FD003 datasets within the C-MAPSS collection, yielding RMSE and Score values of 11.30 and 218.08; 12.04 and 227.65 respectively. Results indicate that this approach reduces the Score by 4.67% and 11.5% compared to the current state-of-the-art method.

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吕志云,郭晨霞,杨瑞峰.基于分布式时空卷积网络的航空发动机剩余使用寿命预测[J].电子测量技术,2026,49(4):61-68

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  • 在线发布日期: 2026-04-16
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