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Multiple fault separation and detection by joint subspace learning for the health assessment of wind
Zhaohui DU, Xuefeng CHEN, Han ZHANG, Yanyang ZI, Ruqiang YAN
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 333-347 doi: 10.1007/s11465-017-0435-0
The gearbox of a wind turbine (WT) has dominant failure rates and highest downtime loss among all WT subsystems. Thus, gearbox health assessment for maintenance cost reduction is of paramount importance. The concurrence of multiple faults in gearbox components is a common phenomenon due to fault induction mechanism. This problem should be considered before planning to replace the components of the WT gearbox. Therefore, the key fault patterns should be reliably identified from noisy observation data for the development of an effective maintenance strategy. However, most of the existing studies focusing on multiple fault diagnosis always suffer from inappropriate division of fault information in order to satisfy various rigorous decomposition principles or statistical assumptions, such as the smooth envelope principle of ensemble empirical mode decomposition and the mutual independence assumption of independent component analysis. Thus, this paper presents a joint subspace learning-based multiple fault detection (JSL-MFD) technique to construct different subspaces adaptively for different fault patterns. Its main advantage is its capability to learn multiple fault subspaces directly from the observation signal itself. It can also sparsely concentrate the feature information into a few dominant subspace coefficients. Furthermore, it can eliminate noise by simply performing coefficient shrinkage operations. Consequently, multiple fault patterns are reliably identified by utilizing the maximum fault information criterion. The superiority of JSL-MFD in multiple fault separation and detection is comprehensively investigated and verified by the analysis of a data set of a 750 kW WT gearbox. Results show that JSL-MFD is superior to a state-of-the-art technique in detecting hidden fault patterns and enhancing detection accuracy.
关键词: joint subspace learning multiple fault diagnosis sparse decomposition theory coupling feature separation wind turbine gearbox
Imbalanced fault diagnosis of rotating machinery using autoencoder-based SuperGraph feature learning
《机械工程前沿(英文)》 2021年 第16卷 第4期 页码 829-839 doi: 10.1007/s11465-021-0652-4
关键词: imbalanced fault diagnosis graph feature learning rotating machinery autoencoder
Microdamage study of granite under thermomechanical coupling based on the particle flow code
《结构与土木工程前沿(英文)》 页码 1413-1427 doi: 10.1007/s11709-023-0953-2
关键词: thermomechanical coupling effect granite improved linear parallel bond model thermal property particle flow code
Simulation of steel beam under ceiling jet based on a wind–fire–structure coupling model
《结构与土木工程前沿(英文)》 2023年 第17卷 第1期 页码 78-98 doi: 10.1007/s11709-022-0936-8
关键词: CFD–FEM coupling steel beam wind ceiling jet numerical heat transfer
Dynamic simulation of gas turbines via feature similarity-based transfer learning
Dengji ZHOU, Jiarui HAO, Dawen HUANG, Xingyun JIA, Huisheng ZHANG
《能源前沿(英文)》 2020年 第14卷 第4期 页码 817-835 doi: 10.1007/s11708-020-0709-9
关键词: gas turbine dynamic simulation data-driven transfer learning feature similarity
《机械工程前沿(英文)》 2023年 第18卷 第2期 doi: 10.1007/s11465-022-0737-8
关键词: selective laser melting (SLM) build orientation determination multi-feature mechanical part (MFMP) fuzzy analytical hierarchy process multi-objective decision making (MODM)
徐勇,杨静宇,陆建峰
《中国工程科学》 2005年 第7卷 第10期 页码 38-42
在PCA基础上发展出的KPCA方法能抽取样本的非线性特征分量。然而, 基于KPCA的特征抽取需计算所有训练样本与待抽取特征的样本间的核函数, 因此, 训练集的大小制约着特征抽取的效率。为了提高效率,假设特征空间中变换轴可由一部分训练样本(节点)线性表出,并设计了改进的KPCA算法(IKPCA)。该算法抽取某样本特征时,只需计算该样本与节点间的核函数即可。实验结果显示,IKPCA在对应较好性能的同时,具有明显的效率上的优势。
Xingfan ZHOU,Zengling YANG,Longjian CHEN,Lujia HAN
《农业科学与工程前沿(英文)》 2016年 第3卷 第2期 页码 171-179 doi: 10.15302/J-FASE-2016095
关键词: self-organizing feature maps visualization processed animal proteins (PAPs) amino acid
Phase separation in cGAS-STING signaling
《医学前沿(英文)》 页码 855-866 doi: 10.1007/s11684-023-1026-6
关键词: biomolecular condensates phase separation cGAS-STING pathway cGAS STING cGAMP interferon
《化学科学与工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11705-023-2378-9
关键词: MXene sacrificial template oxidative self-coupling Co nanoparticles imine
Zhenhua LI, Weihan WANG, Dongxue YIN, Jing LV, Xinbin MA
《化学科学与工程前沿(英文)》 2012年 第6卷 第4期 页码 410-414 doi: 10.1007/s11705-012-1213-5
关键词: palladium CO coupling dialkyl oxalate alkyl nitrite decomposition
Thermodynamic and economic analyses of a coal and biomass indirect coupling power generation system
Buqing YE, Rui ZHANG, Jin CAO, Bingquan SHI, Xun ZHOU, Dong LIU
《能源前沿(英文)》 2020年 第14卷 第3期 页码 590-606 doi: 10.1007/s11708-020-0809-6
关键词: biomass indirect coupling system process simulation thermodynamic analysis economic analysis
Enhancing the aromatic selectivity of cyclohexane aromatization by CO2 coupling
《化学科学与工程前沿(英文)》 2023年 第17卷 第11期 页码 1801-1808 doi: 10.1007/s11705-023-2325-9
关键词: aromatics carbon dioxide aromatization coupling reaction ZSM-5 zeolite
Yun Liu, Youquan Zhu, Chaojun Li
《化学科学与工程前沿(英文)》 2018年 第12卷 第1期 页码 3-8 doi: 10.1007/s11705-017-1693-4
关键词: biaryl acids cross-dehydrogenative coupling rhodium-catalyzed
Selective capture and separation of xenon and krypton using metal organic frameworks: a review
《化学科学与工程前沿(英文)》 2023年 第17卷 第12期 页码 1895-1912 doi: 10.1007/s11705-023-2355-3
关键词: metal organic frameworks xenon krypton selective separation used nuclear fuel
标题 作者 时间 类型 操作
Multiple fault separation and detection by joint subspace learning for the health assessment of wind
Zhaohui DU, Xuefeng CHEN, Han ZHANG, Yanyang ZI, Ruqiang YAN
期刊论文
Imbalanced fault diagnosis of rotating machinery using autoencoder-based SuperGraph feature learning
期刊论文
Dynamic simulation of gas turbines via feature similarity-based transfer learning
Dengji ZHOU, Jiarui HAO, Dawen HUANG, Xingyun JIA, Huisheng ZHANG
期刊论文
Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective
期刊论文
composition differences between processed protein from different animal species by self-organizing feature
Xingfan ZHOU,Zengling YANG,Longjian CHEN,Lujia HAN
期刊论文
catalysts derived from zeolitic imidazolate framework@MXene composites for efficient oxidative self-coupling
期刊论文
Effect of alkyl nitrite decomposition on catalytic performance of CO coupling reaction over supported
Zhenhua LI, Weihan WANG, Dongxue YIN, Jing LV, Xinbin MA
期刊论文
Thermodynamic and economic analyses of a coal and biomass indirect coupling power generation system
Buqing YE, Rui ZHANG, Jin CAO, Bingquan SHI, Xun ZHOU, Dong LIU
期刊论文
Mild and highly regioselective synthesis of biaryl acids via Rh(I)-catalyzed cross-dehydrogenative coupling
Yun Liu, Youquan Zhu, Chaojun Li
期刊论文