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A new and best approach for early detection of rotor and stator faults in induction motors coupled to

Abderrahim ALLAL,Boukhemis CHETATE

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 176-191 doi: 10.1007/s11708-015-0386-2

Abstract: proposed which was endowed with a dominant sensitivity in the case in which there would be rotor or statorfaults.

Keywords： induction motor     incipient broken bar     extended Park’s vector approach     spectral analysis     inter-turn short-circuit     Hilbert transform    

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Condition monitoring of a wind turbine generator using a standalone wind turbine emulator

Himani,Ratna DAHIYA

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 286-297 doi: 10.1007/s11708-016-0419-5

Abstract: with open source technology from graze required for the condition monitoring to diagnose rotor and statorfaults in a wind turbine generator (WTG).electric subassemblies direct drive WTs are most susceptible to damage in practice, generator winding faults

Keywords： (WTE)     wind turbine generator (WTG)     maximum power point tracking (MPPT)     tip speed ratio (TSR)     rotor faults     stator faults    

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Application of high-turning bowed compressor stator to redesign of highly loaded fan stage

LI Shaobin, SU Jiexian, WANG Zhongqi

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 534-540 doi: 10.1007/s11708-008-0066-6

Abstract: A redesign of a highly loaded fan stage by using high-turning bowed compressor stator was conducted.The original tandem stator was replaced by the highly loaded bowed stator which was applicable to highlyof the bowed blade in order to improve the aerodynamic performance and the matching of the rotor and statorThe results show that the highly loaded bowed stator can be used not only to improve the structure andIt is believed that the highly loaded bowed stator can advance the design of high-performance compressor

Keywords： off-design     different     numerical     contouring technique     high-performance compressor    

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A multi-sensor relation model for recognizing and localizing faults of machines based on network analysis

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0736-9

Abstract: Second, the localization for multi-source faults is seldom investigated, although locating the anomalyvariable over multivariate sensing data for certain types of faults is desirable.

Keywords： fault recognition     fault localization     multi-sensor relations     network analysis     graph neural network    

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Numerical Simulation of Rotor/Stator Interaction in Turbomachinery by Use of a Disturbance Vortex Method

Chen Maozhang,Peng Bo

Strategic Study of CAE 2000, Volume 2, Issue 2,   Pages 15-23

Abstract:

A disturbance vortex method for simulating rotor/stator interaction in turbomachinery was developed

To validate the computational method, the unsteady flows caused by rotor/stator interaction

Keywords： turbomachinery     rotor/stator interaction     disturbance vortex method     compressible flow     unsteady flow    

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Application of fuzzy logic control algorithm as stator power controller of a grid-connected doubly-fed

Ridha CHEIKH, Arezki MENACER, Said DRID, Mourad TIAR

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 49-55 doi: 10.1007/s11708-012-0217-7

Abstract: the grid without any problems related to power quality, the active and reactive powers ( , ) at the statorcontrol, which gives an optimal operation of the DFIG in sub-synchronous region, and the control of the statorpower flow with the possibility of keeping stator power factor at a unity.

Keywords： doubly-fed induction generator (DFIG)     vector control     fuzzy logic controller     optimization     power factor unity     active and reactive power    

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Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 130-141 doi: 10.1007/s11465-014-0298-6

Abstract:

Fault diagnosis of rolling element bearings requires efficient signal processing techniques. For this purpose, the performances of envelope detection with fast Fourier transform (FFT) and continuous wavelet transform (CWT) of vibration signals produced from a bearing with defects on inner race and rolling element, have been examined at low signal to noise ratio. Both simulated and experimental signals from identical bearings have been considered for the purpose of analysis. The bearings have been modeled as spring-mass-dashpot systems and the simulated signals have been obtained considering transfer functions for the bearing systems subjected to impulsive loads due to the defects. Frequency B spline wavelets have been applied for CWT and a discussion on wavelet selection has been presented for better effectiveness. Results show that use of CWT with the proposed wavelets overcomes the short coming of FFT while processing a noisy vibration signals for defect detection of bearings.

Keywords： Fault detection     spline wavelet     continuous wavelet transform     fast Fourier transform    

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Effects of rotor and stator geometry on dissolution process and power consumption in jet-flow high shear

Lin Yang, Wenpeng Li, Junheng Guo, Wei Li, Baoguo Wang, Minqing Zhang, Jinli Zhang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 384-398 doi: 10.1007/s11705-020-1928-7

Abstract: mixer (JF-HSM) is a new type of intensified equipment with special configurations of the rotor and the statorconfiguration parameters, such as rotor diameter, rotor blade inclination, rotor blade bending direction, statordiameter, and stator bottom opening diameter.turbulent power consumption of the JF-HSM is affected by the change in rotor blade inclination and stator

Keywords： jet-flow high shear mixer     solid particle dissolution     power consumption characteristics     CFD Simulation    

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Thinking about Future Plant Medicine Engineering

Gao Jinji

Strategic Study of CAE 2003, Volume 5, Issue 12,   Pages 30-35

Abstract: , it is possible to build a new theory of PME (Plant Medicine Engineering) to prevent and eliminate faultsSome common issues, such as the forming of diseases and faults, how to diagnose those diseases and faults, the deep rule concerning the causes and mechanisms of faults and diseases, comparison between curing

Keywords： plant medicine engineering     diseases     faults     prevention and cure    

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Impact analysis of compressor rotor blades of an aircraft engine

Y B SUDHIR SASTRY, B G KIROS, F HAILU, P R BUDARAPU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 505-514 doi: 10.1007/s11709-018-0493-3

Abstract: Frequent failures due to foreign particle impacts are observed in compressor blades of the interceptor fighter MIG-23 aircraft engines in the Ethiopian air force, supplied by the Dejen Aviation Industry. In this paper, we made an attempt to identify the causes of failure and hence recommend the suitable materials to withstand the foreign particle impacts. Modal and stress analysis of one of the recently failed MIG-23 gas turbine compressor blades made up of the following Aluminum based alloys: 6061-T6, 7075-T6, and 2024-T4, has been performed, apart from the impact analysis of the rotor blades hit by a granite stone. The numerical results are correlated to the practical observations. Based on the modal, stress and impact analysis and the material properties of the three considered alloys, alloy 7075-T6 has been recommended as the blade material.

Keywords： axial flow compressor     rotor and stator blades     aircraft engine     stress and impact analysis     aluminum alloys    

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Direction and influencing factors of hydraulic fracture

Zhao Guoshi,Xu Jian,Qiu Jinping

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 100-104

Abstract: along the greatest principal stress direction, which also affected by geological structure, original faults

Keywords： direction of hydraulic fracture     geological structure     original faults     faulting plane    

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measures on displacement and stress field of surrounding rock in tunnels crossing active strike-slip faults

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0966-x

Abstract: concrete-to resist fault dislocation in the surrounding rock near tunnels crossing active strike-slip faultsresults provide a new supporting idea for the surrounding rock of tunnels crossing active strike-slip faults

Keywords： anti-fault effect     engineering measures     LRAF method     stress and displacement field     tunnel-crossing active faults    

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An approach for mechanical fault classification based on generalized discriminant analysis

LI Wei-hua, SHI Tie-lin, YANG Shu-zi

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 292-298 doi: 10.1007/s11465-006-0022-2

Abstract: To deal with pattern classification of complicated mechanical faults, an approach to multi-faults classificationKPCA is good at detection of machine abnormality while GDA performs well in multi-faults classificationbased on the collection of historical faults symptoms.condition classification and gear fault classification, an excellent performance in complicated multi-faults

Keywords： generalized discriminant     non-separable     abnormality     classification     multi-faults classification    

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A Blasting Sources-Based Approach to Inspection of Faults in Dam

Zhou Hougui,Tan Kaiyan

Strategic Study of CAE 2007, Volume 9, Issue 4,   Pages 79-82

Abstract:

An approach to inspection of incipient faults in dam by non_d estructivesystem integrity and key items of the new blasting source-based technology for inspection of incipient faults

Keywords： blasting source     dam     inspection of incipient fault     elastic wave     dynamic monitoring     excitation signal    

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Mechanism and control of existing faults on long-span concrete continuous system bridges in China

Lin Fan,Wang Ping,Xiao Kaijun,Li Wei

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 78-81

Abstract: In this paper, the forms of many typical faults like excessive deflection in the mid-span, box beam crackAnd the characteristics of these faults' happening time, trend of development and distribution form

Keywords： prestressed     concrete     continuous bridge     fault     control method    

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Title Author Date Type Operation

A new and best approach for early detection of rotor and stator faults in induction motors coupled to

Abderrahim ALLAL,Boukhemis CHETATE

Journal Article

Condition monitoring of a wind turbine generator using a standalone wind turbine emulator

Himani,Ratna DAHIYA

Journal Article

Application of high-turning bowed compressor stator to redesign of highly loaded fan stage

LI Shaobin, SU Jiexian, WANG Zhongqi

Journal Article

A multi-sensor relation model for recognizing and localizing faults of machines based on network analysis

Journal Article

Numerical Simulation of Rotor/Stator Interaction in Turbomachinery by Use of a Disturbance Vortex Method

Chen Maozhang,Peng Bo

Journal Article

Application of fuzzy logic control algorithm as stator power controller of a grid-connected doubly-fed

Ridha CHEIKH, Arezki MENACER, Said DRID, Mourad TIAR

Journal Article

Identification of faults through wavelet transform vis-à-vis fast Fourier transform of noisy vibration

Deepak PALIWAL,Achintya CHOUDHURY,T. GOVANDHAN

Journal Article

Effects of rotor and stator geometry on dissolution process and power consumption in jet-flow high shear

Lin Yang, Wenpeng Li, Junheng Guo, Wei Li, Baoguo Wang, Minqing Zhang, Jinli Zhang

Journal Article

Thinking about Future Plant Medicine Engineering

Gao Jinji

Journal Article

Impact analysis of compressor rotor blades of an aircraft engine

Y B SUDHIR SASTRY, B G KIROS, F HAILU, P R BUDARAPU

Journal Article

Direction and influencing factors of hydraulic fracture

Zhao Guoshi,Xu Jian,Qiu Jinping

Journal Article

measures on displacement and stress field of surrounding rock in tunnels crossing active strike-slip faults

Journal Article

An approach for mechanical fault classification based on generalized discriminant analysis

LI Wei-hua, SHI Tie-lin, YANG Shu-zi

Journal Article

A Blasting Sources-Based Approach to Inspection of Faults in Dam

Zhou Hougui,Tan Kaiyan

Journal Article

Mechanism and control of existing faults on long-span concrete continuous system bridges in China

Lin Fan,Wang Ping,Xiao Kaijun,Li Wei

Journal Article