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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 interceptorModal and stress analysis of one of the recently failed MIG-23 gas turbine compressor blades made upbased alloys: 6061-T6, 7075-T6, and 2024-T4, has been performed, apart from the impact analysis of the rotorblades hit by a granite stone.

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

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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.Using the developed optimization program, blades of a 1.3 MW stall-regulated wind turbine are designedCompared with the existing blades, the designed blades have obviously better aerodynamic performance.

Keywords： population     extended     algorithm     developed optimization     accurate    

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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: PVPA) was proposed which was endowed with a dominant sensitivity in the case in which there would be rotoror stator faults.

Keywords： induction motor     incipient broken bar     extended Park’s vector approach     spectral analysis     inter-turn short-circuit     Hilbert 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: high shear mixer (JF-HSM) is a new type of intensified equipment with special configurations of the rotorand the stator.diameter, rotor blade inclination, rotor blade bending direction, stator diameter, and stator bottomResults indicate that the turbulent power consumption of the JF-HSM is affected by the change in rotorblade inclination and stator bottom opening.

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

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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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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: emulator(WTE) with open source technology from graze required for the condition monitoring to diagnose rotorand stator faults in a wind turbine generator (WTG).Considering the fact that the rotor blades and electric subassemblies direct drive WTs are most susceptibleto damage in practice, generator winding faults and rotor unbalance have been introduced and investigated

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

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Two-sided ultrasonic surface rolling process of aeroengine blades based on on-machine noncontact measurement

Shulei YAO, Xian CAO, Shuang LIU, Kaiming ZHANG, Xiancheng ZHANG, Congyang GONG, Chengcheng ZHANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 240-255 doi: 10.1007/s11465-019-0581-7

Abstract: As crucial parts of an aeroengine, blades are vulnerable to damage from long-term operation in harshprocess (USRP) is a novel surface treatment technique that can highly improve the mechanical behavior of bladesbe used for secondary machining path generation due to the deviation between the actual and nominal bladesThis study presents a two-sided USRP (TS-USRP) machining for aeroengine blades on the basis of on-machine

Keywords： aeroengine blades     on-machine noncontact measurement     point cloud processing     path planning     surface strengthening    

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Novel casting processes for single-crystal turbine blades of superalloys

Dexin MA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 3-16 doi: 10.1007/s11465-018-0475-0

Abstract:

This paper presents a brief review of the current casting techniques for single-crystal (SC) blades, as well as an analysis of the solidification process in complex turbine blades.based on the Bridgman process were presented to illustrate the development in the production of SC bladesestablished for the microscopic control of SC growth in the critical areas of large industrial gas turbine blades

Keywords： superalloy     investment casting     Bridgman process     directional solidification     single crystal     turbine blade    

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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 rotorThe voltage model encounters major drawbacks at low speeds, namely, integrator drift and stator resistanceThese lead to a significant error in the estimation of rotor resistance at low speed.To address these problems, an offline trained NN with data incorporating stator resistance variation
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Timing decision-making method of engine blades for predecisional remanufacturing based on reliability

Le CHEN, Xianlin WANG, Hua ZHANG, Xugang ZHANG, Binbin DAN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 412-421 doi: 10.1007/s11465-019-0551-0

Abstract: Used engine blades are utilized as an example to demonstrate the validity and effectiveness of the proposed

Keywords： predecisional remanufacturing     reliability     least squares support vector regression (LS-SVR)     game theory    

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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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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 highlythe design of the bowed blade in order to improve the aerodynamic performance and the matching of the rotorand stator blade rows.The results show that the highly loaded bowed stator can be used not only to improve the structure and

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

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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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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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Title Author Date Type Operation

Impact analysis of compressor rotor blades of an aircraft engine

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

Journal Article

Optimization model for rotor blades of horizontal axis wind turbines

LIU Xiong, CHEN Yan, YE Zhiquan

Journal Article

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

Abderrahim ALLAL,Boukhemis CHETATE

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

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

Chen Maozhang,Peng Bo

Journal Article

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

Himani,Ratna DAHIYA

Journal Article

Two-sided ultrasonic surface rolling process of aeroengine blades based on on-machine noncontact measurement

Shulei YAO, Xian CAO, Shuang LIU, Kaiming ZHANG, Xiancheng ZHANG, Congyang GONG, Chengcheng ZHANG

Journal Article

Novel casting processes for single-crystal turbine blades of superalloys

Dexin MA

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

Timing decision-making method of engine blades for predecisional remanufacturing based on reliability

Le CHEN, Xianlin WANG, Hua ZHANG, Xugang ZHANG, Binbin DAN

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

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

LI Shaobin, SU Jiexian, WANG Zhongqi

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

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