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Finite element model updating of a large structure using multi-setup stochastic subspace identification

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 965-980 doi: 10.1007/s11709-019-0530-x

Abstract: The natural frequencies of the solar power plant structure are estimated by multi-setup stochastic subspaceidentification method which is considered as a strong and efficient method in operational modal analysis

Keywords： operational modal analysis     solar power plant structure     multi-setup stochastic subspace     bees optimization    

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Subspace-based identification of discrete time-delay system Article

Qiang LIU,Jia-chen MA

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 6,   Pages 566-575 doi: 10.1631/FITEE.1500358

Abstract: We investigate the identification problems of a class of linear stochastic time-delay systems with unknownThen a conventional subspace identification method is used to estimate augmented system matrices and

Keywords： Identification problems     Time-delay systems     Subspace identification method     Alternate convex search    

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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

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 333-347 doi: 10.1007/s11465-017-0435-0

Abstract: Thus, this paper presents a joint subspace learning-based multiple fault detection (JSL-MFD) techniqueIt can also sparsely concentrate the feature information into a few dominant subspace coefficients.

Keywords： joint subspace learning     multiple fault diagnosis     sparse decomposition theory     coupling feature separation    

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An improved subspace weighting method using random matrix theory Research Articles

Yu-meng Gao, Jiang-hui Li, Ye-chao Bai, Qiong Wang, Xing-gan Zhang,ychbai@nju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 9,   Pages 1302-1307 doi: 10.1631/FITEE.1900463

Abstract: The weighting subspace fitting (WSF) algorithm performs better than the multi-signal classification (

Keywords： Direction of arrival     Signal subspace     Random matrix theory    

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Improving the Performance of OFDM Channel Estimation through Subspace Projecting and Tracking

Dong Liang,Cao Xiuying,Bi Guangguo

Strategic Study of CAE 2006, Volume 8, Issue 11,   Pages 86-93

Abstract: observation of the true channel frequency response, so the noise component can be compressed through subspaceIn this paper, the substance of the improvement of LS channel estimation is analyzed when subspace projectingis enforced, and the general framework to perform subspace projecting in the context of OFDM channelWhen signal subspace varies with time, subspace tracking should be performed to maintain a good estimationof signal subspace.

Keywords： OFDM     subspace     projecting     tracking     channel estimation    

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Variational mode decomposition based modal parameter identification in civil engineering

Mingjie ZHANG, Fuyou XU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1082-1094 doi: 10.1007/s11709-019-0537-3

Abstract: An out-put only modal parameter identification method based on variational mode decomposition (VMD) isThe proposed identification method can straightforwardly extract the mode shape vectors using the modaldemonstrate the efficiency and highlight the superiority of the proposed method in modal parameter identificationThe proposed method is proved to be efficient and accurate in modal parameter identification for both

Keywords： modal parameter identification     variational mode decomposition     civil structure     nonlinear system     closely    

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Non-convex sparse optimization-based impact force identification with limited vibration measurements

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0762-2

Abstract: Impact force identification is important for structure health monitoring especially in applications involvingDifferent from the traditional direct measurement method, the impact force identification technique is> regularization often identifies false forces in non-loaded regions, interfering with the accurate identificationmml:mtext>-ADMM is applied to solve the impact force identificationSimulations and experiments are performed on a composite plate to verify the identification accuracy

Keywords： impact force identification     inverse problem     sparse regularization     under-determined condition     alternating    

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A two-stage parametric subspace model for efficient contrast-preserving decolorization Article

Hong-yang LU, Qie-gen LIU, Yu-hao WANG, Xiao-hua DENG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1874-1882 doi: 10.1631/FITEE.1600017

Abstract: We show that the first subspace in the two-order model is the most important and the second one can bethe first stage of our model, the gradient correlation similarity (Gcs) measure is used on the first subspace, Gcs is applied again to select the optimal result from the immediate grayed image plus the second subspace-induced

Keywords： Color-to-gray conversion     Subspace modeling     Two-order polynomial model     Gradient correlation similarity    

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The research on structural damage identification using rough set and integrated neural network

Juelong LI, Hairui LI, Jianchun XING, Qiliang YANG

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 305-310 doi: 10.1007/s11465-013-0259-5

Abstract:

A huge amount of information and identification accuracy in large civil engineering structural damageidentification has not been addressed yet.To efficiently solve this problem, a new damage identification method based on rough set and integratedThe decision fusion network will give the final damage identification results.The identification examples show that this method can simplify the redundant information to reduce the

Keywords： rough set     integrated neural network     damage identification     decision making fusion    

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Modeling of a dynamic dual-input dual-output fast steeringmirror system Article

Hong SONG, Jia-heng ZHANG, Ping YANG, Hao-cai HUANG, Shu-yue ZHAN, Teng-jun LIU, Yi-lu GUO, Hang-zhou WANG, Hui HUANG, Quan-quan MU, Mei-fen FANG, Ming-yuan YANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 10,   Pages 1488-1498 doi: 10.1631/FITEE.1601221

Abstract: Unknown parameters in the state-space model are identified by the subspace identification algorithm,

Keywords： Fast steering mirror     Dynamic system     Input-output coupling     Physical modeling     Subspace identification    

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Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterous

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0691-5

Abstract: Experimental results of the finger joint stiffness identification and finger impact tests under different

Keywords： multifingered hand     mechanism design     robot safety     variable stiffness actuator    

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Damage identification in connections of moment frames using time domain responses and an optimization

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 851-866 doi: 10.1007/s11709-021-0739-3

Abstract: In this study, an optimization-based method for joint damage identification of moment frames using theThen, the problem of joint damage identification is converted to a standard optimization problem.Then, a comparison between the proposed method and the existing damage identification method is provided

Keywords： damage identification     beam-to-column connection     time-domain response     optimization    

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Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 358-368 doi: 10.1007/s11465-019-0539-9

Abstract: On the premise of selecting initial values reasonably, an inverse identification algorithm based on sensitivityAfter introducing the identified values into the analysis model, the reliability of the identification

Keywords： inverse identification     pipeline hoop     frequency response function     mechanical parameters     preload    

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A super-element approach for structural identification in time domain

LI Jie, ZHAO Xin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 215-221 doi: 10.1007/s11465-006-0004-4

Abstract: For most time-domain identification methods, a complete measurement for unique identification resultsnumber of structural degrees of freedom (DOFs) in practical applications, and thus make the time-domain identificationThe super-element model used for time domain identification is first discussed in this study.parameterization procedure based on the sensitivities of response forces is introduced to establish the identificationSome principles are suggested on effective decomposing of the whole structure into super-elements for identification

Keywords： numerical     effective decomposing     parameterization procedure     divide-and-conquer ability     time-domain identification    

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Relative vibration identification of cutter and workpiece based on improved bidimensional empirical mode

Jiasheng LI, Xingzhan LI, Wei WEI, Pinkuan LIU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 227-239 doi: 10.1007/s11465-020-0587-1

Abstract: topography representing the relative vibration between the cutter and the workpiece through feature identificationmorphology demonstrate the validity of the improved BEMD algorithm in realizing the relative vibration identification

Keywords： bidimensional empirical mode decomposition     spatial spectrum analysis     boundary effect     vibration identification    

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Title Author Date Type Operation

Finite element model updating of a large structure using multi-setup stochastic subspace identification

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Journal Article

Subspace-based identification of discrete time-delay system

Qiang LIU,Jia-chen MA

Journal Article

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

Journal Article

An improved subspace weighting method using random matrix theory

Yu-meng Gao, Jiang-hui Li, Ye-chao Bai, Qiong Wang, Xing-gan Zhang,ychbai@nju.edu.cn

Journal Article

Improving the Performance of OFDM Channel Estimation through Subspace Projecting and Tracking

Dong Liang,Cao Xiuying,Bi Guangguo

Journal Article

Variational mode decomposition based modal parameter identification in civil engineering

Mingjie ZHANG, Fuyou XU

Journal Article

Non-convex sparse optimization-based impact force identification with limited vibration measurements

Journal Article

A two-stage parametric subspace model for efficient contrast-preserving decolorization

Hong-yang LU, Qie-gen LIU, Yu-hao WANG, Xiao-hua DENG

Journal Article

The research on structural damage identification using rough set and integrated neural network

Juelong LI, Hairui LI, Jianchun XING, Qiliang YANG

Journal Article

Modeling of a dynamic dual-input dual-output fast steeringmirror system

Hong SONG, Jia-heng ZHANG, Ping YANG, Hao-cai HUANG, Shu-yue ZHAN, Teng-jun LIU, Yi-lu GUO, Hang-zhou WANG, Hui HUANG, Quan-quan MU, Mei-fen FANG, Ming-yuan YANG

Journal Article

Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterous

Journal Article

Damage identification in connections of moment frames using time domain responses and an optimization

Journal Article

Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Journal Article

A super-element approach for structural identification in time domain

LI Jie, ZHAO Xin

Journal Article

Relative vibration identification of cutter and workpiece based on improved bidimensional empirical mode

Jiasheng LI, Xingzhan LI, Wei WEI, Pinkuan LIU

Journal Article