基于改进马田系统的复杂系统健康状态评估

doi:10.3969/j.issn.1001-506X.2020.04.30

系统工程与电子技术 ›› 2020, Vol. 42 ›› Issue (4): 960-968.doi: 10.3969/j.issn.1001-506X.2020.04.30

• 可靠性 • 上一篇

基于改进马田系统的复杂系统健康状态评估

彭宅铭(), 程龙生(), 詹君(), 姚启峰()

南京理工大学经济管理学院, 江苏南京 210094

收稿日期:2019-07-04 出版日期:2020-03-28 发布日期:2020-03-28
作者简介:彭宅铭(1990-),男,博士研究生,主要研究方向为质量工程与应用统计、健康管理。E-mail:pz_ming@njust.edu.cn|程龙生(1964-),通信作者,男,教授,博士,主要研究方向为应用统计和质量管理、综合评价与决策。E-mail:cheng_longsheng@163.com|詹君(1986-),女,博士研究生,主要研究方向为数据挖掘、人工智能、智能监控。E-mail:yayamengyun@126.com|姚启峰(1991-),男,博士研究生,主要研究方向为质量工程与应用统计、健康管理。E-mail:3192152730@qq.com
基金资助:
国家自然科学基金(71271114)

Health status assessment for complex system based on improved Mahalanobis-Taguchi system

Zhaiming PENG(), Longsheng CHENG(), Jun ZHAN(), Qifeng YAO()

School of Economics and Management, Nanjing University of Science and Technology, Nanjing 210094, China

Received:2019-07-04 Online:2020-03-28 Published:2020-03-28
Supported by:
国家自然科学基金(71271114)

摘要/Abstract

摘要：

健康状态评估是复杂系统故障预测与健康管理的关键环节,为准确评估系统的状态,提出一种基于改进马田系统(improved Mahalanobis-Taguchi system, IMTS)的评估方法。首先,通过监测多特征参数的时间序列,运用IMTS筛选特征并计算加权马氏距离(weighted Mahalanobis distance, WMD);然后,基于WMD构建健康指数(health index, HI)模型,并利用Box-Cox变换和3σ准则确定HI阈值;最后,通过美国国家航空航天局(national aeronautics and space administration, NASA)提供的PHM08数据,对航空发动机的健康状态进行评估。结果表明,该方法能够对复杂系统进行及时有效的综合健康状态评估。

关键词: 改进马田系统, 健康指数, Box-Cox变换, 健康状态评估

Abstract:

Health status assessment is a key part of prognostics and health management for complex systems. Aiming at the comprehensive assessment problems of the system health state, a complex system health evaluation approach is proposed, which is based on the improved Mahalanobis-Taguchi system (IMTS). Firstly, the time series of multiple characteristic parameters is monitored, which is put into IMTS to filter the features and calculate the weighted Mahalanobis distance (WMD). Then, the health index (HI) model is constructed based on WMD, and the Box-Cox transformation and three-sigma rules are used to determine the HI threshold. Finally, with the PHM08 data provided by national aeronautics and space administration (NASA), the health status of the aeroengine is evaluated. The results indicate that the proposed method can perform timely and effective comprehensive health assessment of complex systems.

Key words: improved Mahalanobis-Taguchi system (IMTS), health index (HI), Box-Cox transformation, health status assessment

中图分类号:

TP18

彭宅铭, 程龙生, 詹君, 姚启峰. 基于改进马田系统的复杂系统健康状态评估[J]. 系统工程与电子技术, 2020, 42(4): 960-968.

Zhaiming PENG, Longsheng CHENG, Jun ZHAN, Qifeng YAO. Health status assessment for complex system based on improved Mahalanobis-Taguchi system[J]. Systems Engineering and Electronics, 2020, 42(4): 960-968.

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参考文献 16

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序号	符号	描述	单位
1	T2	风扇入口温度	°R
2	T24	低压压缩机出口温度	°R
3	T30	高压压缩机入口温度	°R
4	T50	低压涡轮出口温度	°R
5	P2	风扇入口的压力	Pa
6	P15	外涵道总压力	Pa
7	P30	高压压缩机出口压力	Pa
8	Nf	风扇物理转速	rpm
9	Nc	核心机物理转速	rpm
10	epr	发动机压比(P50/P2)	-
11	Ps30	高压压缩机出口静压	Pa
12	Phi	燃油流量与Ps30比值	pps/Pa
13	NRf	风扇换算转速	rpm
14	NRc	核心机换算转速	rpm
15	BPR	涵道比	-
16	farB	燃烧室燃气比	-
17	htBleed	引气焓值	-
18	Nf_dmd	设定风扇转速	rpm
19	PCNfr_dmd	设定核心机换算转速	rpm
20	W31	高压涡轮冷却引气流量	lbm/s
21	W32	低压涡轮冷却引气流量	lbm/s

循环次数	T2	T24	…	W31	W32
1	518.67	641.82	…	39.06	23.419
2	518.67	642.15	…	39	23.423 6
⋮	⋮	⋮	⋱	⋮	⋮
192	518.67	643.54	…	38.48	22.964 9

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基于改进马田系统的复杂系统健康状态评估

Health status assessment for complex system based on improved Mahalanobis-Taguchi system

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