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Analysis of planetary gear transmission in non-stationary operations

Fakher CHAARI, Mohamed Slim ABBES, Fernando Viadero RUEDA, Alfonso Fernandez del RINCON, Mohamed HADDAR

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 88-94 doi: 10.1007/s11465-013-0361-8

Abstract:

Planetary gearboxes operate usually in non-stationary conditions generated mainly by variable loadsIn order to understand the dynamic behavior of planetary gearboxes in such conditions, a mathematic model

Keywords： planetary gearbox     non-stationary conditions     variable load     dynamic response     time frequency analysis    

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Gear fault diagnosis using gear meshing stiffness identified by gearbox housing vibration signals

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0713-3

Abstract: Gearbox fault diagnosis based on vibration sensing has drawn much attention for a long time.Therefore, using gearbox housing vibration signal to identify gear meshing excitation signal is of great

Keywords： gearbox fault diagnosis     meshing stiffness     identification     transfer path     signal processing    

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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:

Wind turbine gearbox (WTG), which functions as an accelerator, ensures the performance and servicemodal analyses show favorable agreement and reveal that the characteristic frequency of the studied gearbox

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

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Digital twin-assisted gearbox dynamic model updating toward fault diagnosis

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0748-0

Abstract: the proposed method is successfully applied to the dynamic model updating of a single-stage helical gearbox

Keywords： digital twin     gearbox     model construction     model updating     physical–virtual interaction    

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Principle and curve of planetary indexing cam mechanisms

LIU Ming-tao, ZHANG Ce, YANG Yu-hu

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 475-478 doi: 10.1007/s11465-006-0063-6

Abstract: A new type of planetary indexing cam mechanism called type !c is presented.

Keywords： continuity     planetary     average transmission     symmetry     intermittent    

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Intelligent fault diagnostic system based on RBR for the gearbox of rolling mills

Lixin GAO, Lijuan WU, Yan WANG, Houpei WEI, Hui YE

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 483-490 doi: 10.1007/s11465-010-0118-6

Abstract: This paper presents an intelligent system that is necessary for diagnostic accuracy and efficiency in the iron and steel industry. A rule-based reseaning (RBR) intelligent diagnostic system has been developed based on many successful diagnostic applications. It can solve the difficulty in knowledge acquisition and has more precision. Its application results prove that the usability of the system is good and it will increasingly attain perfection.

Keywords： rule-based reasoning     fault diagnosis     intelligent system     gear box    

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Planet position errors in planetary transmission: Effect on load sharing and transmission error

Miguel IGLESIAS, Alfonso FERNáNDEZ, Ana DE-JUAN, Ramón SANCIBRIáN, Pablo GARCíA

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 80-87 doi: 10.1007/s11465-013-0362-7

Abstract: , has been extended with internal meshing features, and thus increasing its capabilities to include planetaryThe parameters and characteristics of the planetary transmission used in the paper are introduced.Two different configurations for the planetary transmission are used, attending to the fixed or floating

Keywords： gear     planetary     epicyclic     transmission     load sharing     transmission error    

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Application of python-based Abaqus preprocess and postprocess technique in analysis of gearbox vibration

Guilian YI, Yunkang SUI, Jiazheng DU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 229-234 doi: 10.1007/s11465-011-0128-z

Abstract: vibration and noise, a damping layer and constraint layer are usually pasted on the inner surface of a gearboxThe normal acceleration of the point on the gearbox surface is the main index that can reflect the vibration

Keywords： Abaqus secondary development     Python language     vibration and noise reduction     K-S function     vibration acceleration level    

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Fault diagnosis of spur gearbox based on random forest and wavelet packet decomposition

Diego CABRERA,Fernando SANCHO,René-Vinicio SÁNCHEZ,Grover ZURITA,Mariela CERRADA,Chuan LI,Rafael E. VÁSQUEZ

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3,   Pages 277-286 doi: 10.1007/s11465-015-0348-8

Abstract:

This paper addresses the development of a random forest classifier for the multi-class fault diagnosis in spur gearboxes. The vibration signal’s condition parameters are first extracted by applying the wavelet packet decomposition with multiple mother wavelets, and the coefficients’ energy content for terminal nodes is used as the input feature for the classification problem. Then, a study through the parameters’ space to find the best values for the number of trees and the number of random features is performed. In this way, the best set of mother wavelets for the application is identified and the best features are selected through the internal ranking of the random forest classifier. The results show that the proposed method reached 98.68% in classification accuracy, and high efficiency and robustness in the models.

Keywords： fault diagnosis     spur gearbox     wavelet packet decomposition     random forest    

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DART Mission Shows Potential for Planetary Defense by Smashing Asteroid into New Orbit

Chris Palmer

Engineering 2023, Volume 24, Issue 5,   Pages 7-9 doi: 10.1016/j.eng.2023.03.002

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Developing a new agenda for increased food and climate security

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023514

Abstract:

● The urgent need to address increasing worldwide food and climate insecurity.

Keywords： climate resilience     food security     human health     planetary health     regenerative agriculture    

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Tacholess order-tracking approach for wind turbine gearbox fault detection

Yi WANG, Yong XIE, Guanghua XU, Sicong ZHANG, Chenggang HOU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 427-439 doi: 10.1007/s11465-017-0452-z

Abstract: The gearbox of a wind turbine is the most important transmission unit; it generally exhibits complex

Keywords： wind turbine     variable-speed operating conditions     Vold-Kalman filtering     tacholess order tracking    

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Fault feature extraction of planet gear in wind turbine gearbox based on spectral kurtosis and time wavelet

Yun KONG, Tianyang WANG, Zheng LI, Fulei CHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 406-419 doi: 10.1007/s11465-017-0419-0

Abstract:

Planetary transmission plays a vital role in wind turbine drivetrains, and its fault diagnosis hasThe experimental signals collected from the wind turbine gearbox test rig demonstrate that the proposed

Keywords： wind turbine     planet gear fault     feature extraction     spectral kurtosis     time wavelet energy spectrum    

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Advantageous mechanochemical synthesis of copper(I) selenide semiconductor, characterization, and properties

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 433-442 doi: 10.1007/s11705-021-2066-6

Abstract: selenide-nanocrystalline semiconductor was synthesized via one-step mechanochemical synthesis after 5 min milling in a planetary

Keywords： Cu2Se     berzelianite     nanocrystalline semiconductor     mechanochemical synthesis     planetary ball    

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Review of the damage mechanism in wind turbine gearbox bearings under rolling contact fatigue

Yun-Shuai SU, Shu-Rong YU, Shu-Xin LI, Yan-Ni HE

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 434-441 doi: 10.1007/s11465-018-0474-1

Abstract: Wind turbine gearbox bearings fail with the service life is much shorter than the designed life.Gearbox bearings are subjected to rolling contact fatigue (RCF) and they are observed to fail due to

Keywords： rolling contact fatigue (RCF)     white etching area (WEA)     white etching crack (WEC)     adiabatic shear band (ASB)    

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Title Author Date Type Operation

Analysis of planetary gear transmission in non-stationary operations

Fakher CHAARI, Mohamed Slim ABBES, Fernando Viadero RUEDA, Alfonso Fernandez del RINCON, Mohamed HADDAR

Journal Article

Gear fault diagnosis using gear meshing stiffness identified by gearbox housing vibration signals

Journal Article

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

Pengxing YI,Peng HUANG,Tielin SHI

Journal Article

Digital twin-assisted gearbox dynamic model updating toward fault diagnosis

Journal Article

Principle and curve of planetary indexing cam mechanisms

LIU Ming-tao, ZHANG Ce, YANG Yu-hu

Journal Article

Intelligent fault diagnostic system based on RBR for the gearbox of rolling mills

Lixin GAO, Lijuan WU, Yan WANG, Houpei WEI, Hui YE

Journal Article

Planet position errors in planetary transmission: Effect on load sharing and transmission error

Miguel IGLESIAS, Alfonso FERNáNDEZ, Ana DE-JUAN, Ramón SANCIBRIáN, Pablo GARCíA

Journal Article

Application of python-based Abaqus preprocess and postprocess technique in analysis of gearbox vibration

Guilian YI, Yunkang SUI, Jiazheng DU

Journal Article

Fault diagnosis of spur gearbox based on random forest and wavelet packet decomposition

Diego CABRERA,Fernando SANCHO,René-Vinicio SÁNCHEZ,Grover ZURITA,Mariela CERRADA,Chuan LI,Rafael E. VÁSQUEZ

Journal Article

DART Mission Shows Potential for Planetary Defense by Smashing Asteroid into New Orbit

Chris Palmer

Journal Article

Developing a new agenda for increased food and climate security

Journal Article

Tacholess order-tracking approach for wind turbine gearbox fault detection

Yi WANG, Yong XIE, Guanghua XU, Sicong ZHANG, Chenggang HOU

Journal Article

Fault feature extraction of planet gear in wind turbine gearbox based on spectral kurtosis and time wavelet

Yun KONG, Tianyang WANG, Zheng LI, Fulei CHU

Journal Article

Advantageous mechanochemical synthesis of copper(I) selenide semiconductor, characterization, and properties

Journal Article

Review of the damage mechanism in wind turbine gearbox bearings under rolling contact fatigue

Yun-Shuai SU, Shu-Rong YU, Shu-Xin LI, Yan-Ni HE

Journal Article