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induction motor 3

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free vibration 2

rotor-bearing system 2

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Dynamics analysis of a cracked dual-disk over-hung rotor-bearing system

CHEN Hong, LI He, WEN Bang-chun, ZHANG Xiao-wei

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 204-208 doi: 10.1007/s11465-006-0002-6

Abstract: A dynamic model of a dual-disk vertical over-hung rotor-bearing system is developed, taking into accountand amplitude spectra, we found that the crack greatly influences the dynamic characteristics of the rotor-bearingThe results may bring up theoretical references for fault diagnosis of rotor-bearing systems.

Keywords： nonlinear oil-film     diagnosis     bifurcation     dynamic     numerical Runge-Kutta    

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HHT-based crack identification method for start-up rotor

Bing LI, Chunlin ZHANG, Zhengjia HE

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 300-304 doi: 10.1007/s11465-012-0328-1

Abstract:

This paper presents a crack identification method for start-up rotor based on the Hilbert-Huang transformThe influence of acceleration and crack depth on the rotor is analyzed through experiments.HHT is employed to detect the shallower crack, and is then tested during the start-up process of the rotor

Keywords： cracked rotor     start-up     Hilbert-Huang transform (HHT)    

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Semi-analytical approach for free vibration analysis of cracked beams resting on two-parameter elastic

Alborz MIRZABEIGY,Firooz BAKHTIARI-NEJAD

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 191-202 doi: 10.1007/s11465-014-0293-y

Abstract:

In present study, free vibration of cracked beams resting on two-parameter elastic foundation withboundary conditions on dimensionless frequencies as well as effects of elastic boundary conditions on crackeddeals with general problem, the derived formulation has capability for analyzing free vibration of cracked

Keywords： free vibration     cracked beam     elastic foundation     restrained ends     differential transform method    

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Free vibration analysis of cracked thin plates by quasi-convex coupled isogeometric-meshfree method

Hanjie ZHANG,Junzhao WU,Dongdong WANG

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 405-419 doi: 10.1007/s11709-015-0310-1

Abstract: The free vibration analysis of cracked thin plates via a quasi-convex coupled isogeometric-meshfree methodSubsequently, this approach is exploited to study the free vibration analysis of cracked plates, in which

Keywords： meshfree method     isogeometric analysis     quasi-convex isogeometric-meshfree method     free vibration     cracked    

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Adaptive selective ES-FEM limit analysis of cracked plane-strain structures

H. NGUYEN-XUAN,T. RABCZUK

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 478-490 doi: 10.1007/s11709-015-0317-7

Abstract: This paper presents a simple and efficient approach for predicting the plastic limit loads in cracked

Keywords： cracked structure     limit analysis     von Mises criterion     edge-based strain smoothing     second-order cone programming    

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A novel NN based rotor flux MRAS to overcome low speed problems for rotor resistance estimation in vector

Venkadesan ARUNACHALAM,Himavathi SRINIVASAN,A. MUTHURAMALINGAM

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 382-392 doi: 10.1007/s11708-016-0421-y

Abstract: neural network based model reference adaptive system (MRAS) to solve low speed problems for estimating rotorThe MRAS using rotor flux as the state variable with a two layer online trained neural network rotorflux estimator as the adaptive model (FLUX-MRAS) for rotor resistance estimation is popularly used inThese lead to a significant error in the estimation of rotor resistance at low speed.
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Stability and dynamics of rotor system with 45° slant crack on shaft

Yanli LIN, Xiaohui SI, Fulei CHU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 203-213 doi: 10.1007/s11465-011-0131-4

Abstract:

Crack on a shaft is one of the common damages in a rotor system.transverse vibrations are calculated to compare the influences of transverse crack and slant crack on the rotorResults show that the vibration amplitude of the rotor system with a 45° slant crack on the shaftis larger than that with a transverse crack when the two types of crack have the same depth and the rotorStability and dynamic characteristics of the rotor system with a 45° slant crack on the shaft under

Keywords： rotor dynamics     slant crack     stability     torsional excitation     open and close    

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Study on wave rotor refrigerators

Yuqiang DAI, Dapeng HU, Meixia DING

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 83-87 doi: 10.1007/s11705-009-0075-y

Abstract: As a novel generation of a rotational gas wave machine, the wave rotor refrigerator (WRR) is an unsteady

Keywords： wave rotor     refrigeration     unsteady flow theory     wave diagram    

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Optimization model for rotor blades of horizontal axis wind turbines

LIU Xiong, CHEN Yan, YE Zhiquan

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 483-488 doi: 10.1007/s11465-007-0084-9

Abstract: This paper presents an optimization model for rotor blades of horizontal axis wind turbines.

Keywords： population     extended     algorithm     developed optimization     accurate    

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The computational fluid dynamic modeling of downwash flow field for a six-rotor UAV

Yongjun ZHENG, Shenghui YANG, Xingxing LIU, Jie WANG, Tomas NORTON, Jian CHEN, Yu TAN

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 2,   Pages 159-167 doi: 10.15302/J-FASE-2018216

Abstract: The downwash flow field of the multi-rotor unmanned aerial vehicle (UAV), formed by propellers duringcharacteristics of the distribution of the downwash airflow and simulate the static wind field of multi-rotorUAVs in hovering state, a 3D full-size physical model of JF01-10 six-rotor plant protection UAV wasThese results can be applied to six-rotor plant protection UAVs employed in pesticide spraying and spray

Keywords： CFD simulation     downwash flow field     numerical analysis     plant protection     six-rotor UAV    

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Influence of welding residual stresses on the ductile crack growth resistance of circumferentially cracked

Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 217-223 doi: 10.1007/s11709-012-0169-3

Abstract: on the effect of welding residual stress on the ductile crack growth resistance of circumferentially cracked

Keywords： residual stress     ductile crack growth resistance     complete Gurson model     eigenstrain method    

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Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine

Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 88-104 doi: 10.1007/s11708-015-0387-1

Abstract: shutdown, to obtain the temperature and stress distribution as well as the stress ratio of the welded rotorThe strength design criteria and strength analysis results of the welded rotor are given.The results show that the strength design of improved structure of the VHP welded rotor of the 700°C

Keywords： 700°C ultra-super-critical unit     steam turbine     very high pressure rotor     structure strength design     strength    

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Induction motors variable speed drives diagnosis through rotor resistance monitoring

K. YAHIA, S. ZOUZOU, F. BENCHABANE

Frontiers in Energy 2012, Volume 6, Issue 4,   Pages 420-426 doi: 10.1007/s11708-012-0192-z

Abstract: Rotor asymmetries lead to perturbations of air gap flux patterns in induction machines.It then studies the broken rotor bars (BRBs) fault by the monitoring the rotor resistance.increase when a rotor bar breaks.The rotor resistance is estimated and compared with its nominal value to detect BRBs fault.The EKF estimates the rotor flux, speed and rotor resistance on line by using only measurements of the

Keywords： induction motor     vector control     broken rotor bars (BRBs) diagnostic     extended Kalman filter (EKF)    

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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: based alloys: 6061-T6, 7075-T6, and 2024-T4, has been performed, apart from the impact analysis of the rotor

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

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Influence of the Mechanical Seals on the Dynamic Performance of Rotor–Bearing Systems

XU Hua, ZHU Jun

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 96-100 doi: 10.1007/s11465-005-0008-5

Abstract: and the transfer matrix method are used to establish the equations for the dynamics performance of rotorTo check the response of the rotor bearing system under unbalance motivation, the Gauss method is usedstiffness coefficients and damping coefficients, exert the influence of the mechanical seal on the rotorThe analysis results show that the mechanical seal more or less has effects on the rotor bearing systemThe mechanical seal has much more effects on the flexible rotor bearing system than on the rigid one.
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Title Author Date Type Operation

Dynamics analysis of a cracked dual-disk over-hung rotor-bearing system

CHEN Hong, LI He, WEN Bang-chun, ZHANG Xiao-wei

Journal Article

HHT-based crack identification method for start-up rotor

Bing LI, Chunlin ZHANG, Zhengjia HE

Journal Article

Semi-analytical approach for free vibration analysis of cracked beams resting on two-parameter elastic

Alborz MIRZABEIGY,Firooz BAKHTIARI-NEJAD

Journal Article

Free vibration analysis of cracked thin plates by quasi-convex coupled isogeometric-meshfree method

Hanjie ZHANG,Junzhao WU,Dongdong WANG

Journal Article

Adaptive selective ES-FEM limit analysis of cracked plane-strain structures

H. NGUYEN-XUAN,T. RABCZUK

Journal Article

A novel NN based rotor flux MRAS to overcome low speed problems for rotor resistance estimation in vector

Venkadesan ARUNACHALAM,Himavathi SRINIVASAN,A. MUTHURAMALINGAM

Journal Article

Stability and dynamics of rotor system with 45° slant crack on shaft

Yanli LIN, Xiaohui SI, Fulei CHU

Journal Article

Study on wave rotor refrigerators

Yuqiang DAI, Dapeng HU, Meixia DING

Journal Article

Optimization model for rotor blades of horizontal axis wind turbines

LIU Xiong, CHEN Yan, YE Zhiquan

Journal Article

The computational fluid dynamic modeling of downwash flow field for a six-rotor UAV

Yongjun ZHENG, Shenghui YANG, Xingxing LIU, Jie WANG, Tomas NORTON, Jian CHEN, Yu TAN

Journal Article

Influence of welding residual stresses on the ductile crack growth resistance of circumferentially cracked

Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG

Journal Article

Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine

Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG

Journal Article

Induction motors variable speed drives diagnosis through rotor resistance monitoring

K. YAHIA, S. ZOUZOU, F. BENCHABANE

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

Influence of the Mechanical Seals on the Dynamic Performance of Rotor–Bearing Systems

XU Hua, ZHU Jun

Journal Article