|本期目录/Table of Contents|

[1]胡欢欢,王永坚,邱晨.HHT和马氏距离融合的船用空压机故障诊断[J].集美大学学报(自然科学版),2020,25(1):50-56.
　HU HuanhuanWANG Yongjian,QIU Chen.Research of Fault Diagnosis of Ship’s Air Compressor with HHT Marginal Spectrum and Mahalanobis Distance[J].Journal of Jimei University,2020,25(1):50-56.
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《集美大学学报（自然科学版）》[ISSN:1007-7405/CN:35-1186/N]

卷:
第25卷
期数:
2020年第1期
页码:
50-56
栏目:
船舶与机械工程
出版日期:
2020-01-28

文章信息/Info

Title:
Research of Fault Diagnosis of Ship’s Air Compressor with HHT Marginal Spectrum and Mahalanobis Distance
作者:
胡欢欢; 王永坚; 邱晨
(集美大学轮机工程学院, 福建 厦门 361021)
Author(s):
HU HuanhuanWANG Yongjian; QIU Chen
(School of Marine EngineeringJimei University,Xiamen 361021,China)
关键词:
船用往复式二级空压机; 故障诊断; HHT边际谱; 马氏距离
Keywords:
ship-reciprocating double stage air compressor; fault diagnosis; HHT marginal spectrum; Mahalanobis distance
分类号:
-
DOI:
-
文献标志码:
-
摘要:
为了诊断船用二级往复式空压机最常见的活塞环断裂故障，提出一种将HHT（hilbert-huang transfarm）边际谱和马氏距离相融合的方法。通过空压机正常状态和人为模拟一、二级活塞环断环的实验，采集正常和故障状态下的一、二级缸套和缸盖振动信号。利用HHT算法处理采集的数据，获取HHT边际谱，以空压机固有频段能量值为特征值和马氏距离为分类器，识别其故障类型。实验表明：该方法可以准确、有效地诊断出船用二级往复式空压机活塞断环故障。
Abstract:
In order to solve the nonlinear and nonstationary problems of the fault signals of cylinder-piston ring groups of ship’s reciprocating double stage air compressors,based on the HHT（hilberthuang transform) having the ability of processing such signals,a fault diagnosis method for ship’s air compressors with HHT marginal spectrum and Mahalanobis distance was proposed in this paper to diagnose the most common faults on piston fractures.Through experiments on the normal state and artificial simulations of the first and second pistons breaking rings of the compressor,the vibration signals of the first-second cylinder sleeves and cylinder sleeves and cylinder heads were collected under the normal and fault conditions.Through HHT marginal spectrum were obtained by employing HHT algorithm on processing the collected data.The natural frequency band and the Mahalanobis distance was respectively introduced to as the characterized energy value and the classifier for diagnose faults.The experiments show that the method can identify and diagnose the fault on ship’s reciprocating double stage air compressors accurately and effectively,which to some extent provides a theoretical basis and practical reference for the most common fault identification and diagnosis of the ship compressor.

参考文献/References:

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2020-04-17