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Numerical analysis and experimental investigation of modal properties for the gearbox in wind turbine

Pengxing YI,Peng HUANG,Tielin SHI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 388-402 doi: 10.1007/s11465-016-0404-z

Abstract: This paper examines the distinctive modal properties of WTGs through finite element (FE) and experimentalmodal analyses.First, a whole system model is developed to investigate the first 10 modal frequencies and mode shapesSecond, the FE modal results are validated through experimental modal analyses of a 1.5 WM WTG usingThe natural frequencies from the FE and experimental modal analyses show favorable agreement and reveal

Keywords： wind turbine gearbox     modal analysis     finite element analysis     modal frequency     bearing equivalence    

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Finite element model updating of a large structure using multi-setup stochastic subspace identification method and bees optimization algorithm

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: In the present contribution, operational modal analysis in conjunction with bees optimization algorithmmodal analysis, which is optimized using bees optimization algorithm.modal analysis.Moreover, computed natural frequencies by numerical method are compared with those of the operationalmodal analysis.

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

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Continuous dynamic monitoring of a centenary iron bridge for structural modification assessment

Carmelo GENTILE,Antonella SAISI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1,   Pages 26-41 doi: 10.1007/s11709-014-0284-4

Abstract: period of about 18 months is presented and discussed, highlighting the effects of environmental and operational

Keywords： automated modal identification     continuous dynamic monitoring     environmental/operational effects     iron arch    

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Damping Identification of Bridges Under Nonstationary Ambient Vibration

Sunjoong Kim, Ho-Kyung Kim

Engineering 2017, Volume 3, Issue 6,   Pages 839-844 doi: 10.1016/j.eng.2017.11.002

Abstract: The damping ratios of bridges in service have generally been identified using operational modal analysisTo improve the accuracy of OMA-based damping estimates, a comparative analysis was performed between

Keywords： Damping     Operational modal analysis     Traffic-induced vibration     Nonstationary     Signal stationarization     Amplitude-modulating    

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A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 465-471 doi: 10.1007/s11708-009-0037-6

Abstract: model for aero-damping in a uniform incoming flow, the three-dimension analytical algorithm of the modalAccording to the analytical equations, the modal aero-damping ratio for different nature frequenciesthe factors to affect the aero-damping can be determined.The first bend and the first torsion’s modal

Keywords： compressor     different     three-dimension analytical     classical     low-speed    

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Experimental study of structural damage identification based on modal parameters and decay ratio of acceleration

Zhigen WU, Guohua LIU, Zihua ZHANG

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 112-120 doi: 10.1007/s11709-010-0069-3

Abstract: In addition, a new method was compared with the linear modal-based damage assessment using wavelet transformPreliminary analysis was developed considering the beat phenomenon in the nonlinear state to explainWith better sensibility of damage than modal parameters, probably DRAS is a promising damage indicator

Keywords： damage assessment     decay ratio of acceleration signals (DRAS)     wavelet transform (WT)     modal analysis     reinforced    

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Experimental study of modal parameter identification in a simulated ambient-excited structure

JI Xiaodong, QIAN Jiaru, XU Longhe

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 281-285 doi: 10.1007/s11709-007-0036-9

Abstract: Structure modal parameter online identification was used to monitor the structural health as evidencednatural excitation technique and the eigensystem realization algorithm were combined to identify the modalThe mass-normalized mode shapes were obtained from the eigen-sensitivity analysis.The experimental modal analysis was performed on a two-story steel braced frame model excited by simulatedFrom finite element analysis results and the experimental data, it is shown that this method is effective

Keywords： eigensystem realization     eigen-sensitivity analysis     realization algorithm     vibration     effective    

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Risk assessment on Bohai Bay subsea tunnel in its operational period

Wang Yonghong,Liu Bing,Zhang Yonggang

Strategic Study of CAE 2013, Volume 15, Issue 12,   Pages 107-112

Abstract: Then,those operational risks were analyzed and assessed by the confidence index method and analytic hierarchyFinally,some topics about risk assessment on the subsea tunnel operational risk needed to the further

Keywords： subsea tunnel     operational period     risk analysis     risk assessment    

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Development of an integrated structural health monitoring system for bridge structures in operational

Xinqun ZHU, Hong HAO

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 321-333 doi: 10.1007/s11709-012-0161-y

Abstract: It integrates the real-time heterogeneous sensor data acquiring system, data analysis and interpretation, physical-based numerical simulation of complex structural system under operational conditions and structuralfocused on developing: integrated sensor technology, integrated structural damage identification with operational

Keywords： integrated structural health monitoring     operational conditions     vibration and guided wave    

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Experimental and computational validation of a scaled train tunnel model using modal analysis

Janice B. D’SOUZA, Sangarapillai KANAPATHIPILLAI

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 420-428 doi: 10.1007/s11465-013-0281-7

Abstract: The modal properties for the 300 Hz to 1500 Hz range, including resonances and mode shapes were identifiedcorrespond to theoretical results and a computational model created in COMSOL using Finite Element Analysis

Keywords： reverberation time     acoustic environment     modal properties     resonances    

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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) isdeveloped VMD technique is utilized to decompose the free decay response (FDR) of a structure into to modalA novel procedure is developed to calculate the instantaneous modal frequencies and instantaneous modalThe proposed identification method can straightforwardly extract the mode shape vectors using the modalparameter variation, and amplitude-dependent modal parameters, etc.

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

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A review of condition-based maintenance: Its prognostic and operational aspects

Yanrong LI, Shizhe PENG, Yanting LI, Wei JIANG

Frontiers of Engineering Management 2020, Volume 7, Issue 3,   Pages 323-334 doi: 10.1007/s42524-020-0121-5

Abstract: Monitoring information also facilitates operational decisions in production planning, spare parts management

Keywords： condition-based maintenance     prognostics     operational decision-making     reliability    

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Parameter studies on impact in a lap joint

Amir M. RAHMANI,Elizabeth K. ERVIN

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 64-77 doi: 10.1007/s11465-014-0322-x

Abstract: Modal analysis with base excitation is solved, and time histories of contact points are closely monitored

Keywords： impact mechanics     contact     joint behaviour     modal analysis     parameter study    

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network for damage detection in functionally graded carbon nanotube-reinforced composite plates using modal

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1453-1479 doi: 10.1007/s11709-021-0767-z

Abstract: The elemental modal kinetic energy (MKE) values, calculated from natural frequencies and translational

Keywords： deep feed-forward neural networks     functionally graded carbon nanotube-reinforced composite plates     modal    

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Review of operational management in intelligent agriculture based on the Internet of Things

Xiangpei HU, Lijun SUN, Yaxian ZHOU, Junhu RUAN

Frontiers of Engineering Management 2020, Volume 7, Issue 3,   Pages 309-322 doi: 10.1007/s42524-020-0107-3

Abstract: This review aims to gain insight into the current research and application of operational managementuse the Java application CiteSpace to analyze co-citation networks in the literature related to the operationalFrom the literature analysis results, we identify three major fields: (1) the development of agriculturalagricultural industry chain, additional research directions are recommended from the following aspects: The operationalThe theoretical research and practical application of combining operational management theories and IoT-based

Keywords： Internet of Things (IoT)     agricultural Internet of Things (Agri-IoT)     operational management     intelligent    

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Title Author Date Type Operation

Numerical analysis and experimental investigation of modal properties for the gearbox in wind turbine

Pengxing YI,Peng HUANG,Tielin SHI

Journal Article

Finite element model updating of a large structure using multi-setup stochastic subspace identification method and bees optimization algorithm

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Journal Article

Continuous dynamic monitoring of a centenary iron bridge for structural modification assessment

Carmelo GENTILE,Antonella SAISI

Journal Article

Damping Identification of Bridges Under Nonstationary Ambient Vibration

Sunjoong Kim, Ho-Kyung Kim

Journal Article

A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Journal Article

Experimental study of structural damage identification based on modal parameters and decay ratio of acceleration

Zhigen WU, Guohua LIU, Zihua ZHANG

Journal Article

Experimental study of modal parameter identification in a simulated ambient-excited structure

JI Xiaodong, QIAN Jiaru, XU Longhe

Journal Article

Risk assessment on Bohai Bay subsea tunnel in its operational period

Wang Yonghong,Liu Bing,Zhang Yonggang

Journal Article

Development of an integrated structural health monitoring system for bridge structures in operational

Xinqun ZHU, Hong HAO

Journal Article

Experimental and computational validation of a scaled train tunnel model using modal analysis

Janice B. D’SOUZA, Sangarapillai KANAPATHIPILLAI

Journal Article

Variational mode decomposition based modal parameter identification in civil engineering

Mingjie ZHANG, Fuyou XU

Journal Article

A review of condition-based maintenance: Its prognostic and operational aspects

Yanrong LI, Shizhe PENG, Yanting LI, Wei JIANG

Journal Article

Parameter studies on impact in a lap joint

Amir M. RAHMANI,Elizabeth K. ERVIN

Journal Article

network for damage detection in functionally graded carbon nanotube-reinforced composite plates using modal

Journal Article

Review of operational management in intelligent agriculture based on the Internet of Things

Xiangpei HU, Lijun SUN, Yaxian ZHOU, Junhu RUAN

Journal Article