航空发动机剩余寿命预测的分布鲁棒不确定性量化方法评估

王宇; 程中华; 张玮; 董恩志; 江禹锜

doi:10.12382/bgxb.2025.0188

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航空发动机剩余寿命预测的分布鲁棒不确定性量化方法评估

更新时间：2026-02-10

- 航空发动机剩余寿命预测的分布鲁棒不确定性量化方法评估
- Evaluation of Distributionally Robust Uncertainty Quantification Methods for Aero-engine Remaining Useful Life Prediction
- 兵工学报 2025年46卷第S2期页码：250188
- 作者机构：
  
  1. 陆军工程大学石家庄校区, 河北石家庄 050003
  2. 河北省机械装备状态监测与评估重点实验室, 河北石家庄 050003
  3. 中国兵器科学研究院, 北京 100089
- 作者简介：
  
  * 邮箱: a15032073178@sina.com
- 基金信息：
- DOI：10.12382/bgxb.2025.0188
  中图分类号：
- 收稿：2025-03-19，
  
  网络首发：2026-02-03，
  
  纸质出版：2025
- 稿件说明：
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王宇, 程中华, 张玮, 等. 航空发动机剩余寿命预测的分布鲁棒不确定性量化方法评估[J]. 兵工学报, 2025,46(S2):250188.

Yu WANG, Zhonghua CHENG, Wei ZHANG, et al. Evaluation of Distributionally Robust Uncertainty Quantification Methods for Aero-engine Remaining Useful Life Prediction[J]. Acta Armamentarii, 2025, 46(S2): 250188.
王宇, 程中华, 张玮, 等. 航空发动机剩余寿命预测的分布鲁棒不确定性量化方法评估[J]. 兵工学报, 2025,46(S2):250188. DOI： 10.12382/bgxb.2025.0188.

Yu WANG, Zhonghua CHENG, Wei ZHANG, et al. Evaluation of Distributionally Robust Uncertainty Quantification Methods for Aero-engine Remaining Useful Life Prediction[J]. Acta Armamentarii, 2025, 46(S2): 250188. DOI： 10.12382/bgxb.2025.0188.

摘要

针对航空发动机剩余使用寿命预测中不确定性量化方法的不同情况下适用性问题

在Inception架构的基础上提出一种面向同分布与分布外数据的系统性评估框架。基于美国国家航空航天局商用模块化航空推进系统仿真(NASA Commercial Modular Aero-Propulsion System Simulation

N-CMAPSS)数据集

通过集成12种不确定性量化方法并构建多维评价指标体系

揭示不同方法在复杂退化建模中的性能边界与优化方向。实验结果表明:在同分布场景下

深度核学习以最优预测精度(

MAE

=3.18

RMSE

=3.93)满足高精度需求

而基于变分推理的证据下界贝叶斯神经网络凭借最低校准误差(

MACE

=0.059

RMSCE

=0.062)更适合可靠性敏感任务;深度集成通过负对数似然(

NLL

=1.89)验证了其概率建模优势

并实现认知、偶然不确定性的有效解耦。面对分布外数据

基于变分推理的证据下界贝叶斯神经网络在

MAE

(分布外:5.12)和

RMSCE

(分布外:0.083)上表现稳健

而传统方法的RMSE在分布外场景下激增42%

揭示了其分布鲁棒性缺陷。研究进一步提出动态策略推荐机制

针对不同场景差异化选择最优模型

为航空发动机健康管理的不确定性量化模型的选择提供决策。新提出的多维评估范式与不确定性分析方法

为复杂装备智能运维系统提供了理论支撑

为航空发动机预测与健康管理的可信赖、可解释研究奠定了基础。

Abstract

This study addresses the challenge of scenario-specific applicability of uncertainty quantification (UQ) methods in the prediction of aero-engine remaining useful life (RUL).A systematic evaluation framework for both in-distribution (IID) and out-of-distribution (OOD) scenarios is proposed based on the Inception architecture.In order to reveal the performance boundaries and optimization pathways of different evaluation methods for complex degradation modeling

12 UQ methods are integrated and a multi-dimensional evaluation metric system is established based on the NASA commercial modular aero-propulsion system simulation (N-CMAPSS) dataset.Experimental results demonstrate that

under IID conditions

deep kernel learning (DKL) achieves superior prediction accuracy (MAE=3.18

RMSE=3.93)

making it ideal for precision-critical applications

while Bayesian neural networks with variational inference using evidence lower bound (BNN-VI-ELBO) exhibit the lowest calibration errors (MACE=0.059

RMSCE=0.062)

prioritizing reliability-sensitive tasks.Deep ensemble (DE) validates its probabilistic modeling advantage through negative log-likelihood (NLL=1.89) and successfully decouples the epistemic and aleatoric uncertainties.For OOD data

BNN-VI-ELBO maintains robustness with MAE=5.12 and RMSCE=0.083

whereas the RMSE of the traditional methods (e.g.

SWAG) is increased by 42%

exposing their distributional robustness limitations.A dynamic strategy recommendation mechanism is further developed to adaptively select the optimal models for different scenarios

providing a decision-making methodology for aero-engine health management.The proposed multi-dimensional evaluation paradigm and uncertainty decomposition framework provide theoretical foundations for intelligent maintenance systems

advancing trustworthy and interpretable prognostics and health management (PHM) in aviation engineering.

关键词

Keywords

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