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High-precision gyro-stabilized control of a gear-driven platform with a floating gear tension device

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 487-503 doi: 10.1007/s11465-021-0635-5

Abstract: improved compound control algorithm that substantially enhances the anti-disturbance performance of a gear-drivegyro-stabilized platform with a floating gear tension device.However, the weaker gear support stiffness and more complex meshing friction are also induced by theFirst, the structural properties of the gear transmission and the friction-generating mechanism are analyzedpointing system with a floating gear tension device, which shows a maximum 76% improvement in stabilization

Keywords： inertially stabilized platform     floating gear tension device     nonlinear friction     disturbance compensation    

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100 Years of Gear Measurement Technology——Review & Prospect

Shi Zhaoyao,Fei Yetai,Xie Huakun

Strategic Study of CAE 2003, Volume 5, Issue 9,   Pages 13-17

Abstract:

The evolution of gear measurement technology in the past 100 years is fully reviewed, and 6 key issuesrelated to gear metrology are listed.Emphases are laid on the development of gear measurement principles, the evolution of technical measuresMeanwhile, the principle, configuration and features of present-day CNC Gear Measuring Center are introducedA few of new phenomena in the field of gear measurement technology are remarked, and some research topics

Keywords： gear     gear measurement     gear deviation     gear measuring instrument    

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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: Therefore, using gearbox housing vibration signal to identify gear meshing excitation signal is of greatThis paper establishes an analytical mathematical description of the whole transfer process from gearThe gear meshing stiffness (GMS) identification approach is proposed by using housing vibration signalsNumerical simulation and experimental results demonstrate the proposed method can realize gear faultspectra, and the results also validate the rationality of using meshing stiffness to describe the actual gear

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

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Russian school of the theory and geometry of gearing: Its origin and golden period (1935 --1975)

Dmitry BABICHEV,Sergey LAGUTIN,Natalya BARMINA

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 44-59 doi: 10.1007/s11465-015-0360-z

Abstract: leaders in the theory and geometry of gearing or the theoretical fundamentals of designing gears and gear-cuttingThis review involves some works on gear strength and accuracy to attract more experts.

Keywords： theory of gearing (TG)     gear geometry     generating surface     gear synthesis     gear analysis    

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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: vibration transfer path, and heavy background noise masking effect, the vibration signal of planet gearimpulsive components induced by a localized defect are hard to extract, and the fault detection of planet gearAiming to extract the fault feature of planet gear effectively, we propose a novel feature extractionthat the proposed method is effective at the feature extraction and fault diagnosis for the planet gear

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

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Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing

H. K. SACHIDANANDA, Joseph GONSALVIS, H. R. PRAKASH

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 268-278 doi: 10.1007/s11465-012-0331-6

Abstract:

This paper deals with the contact stress, power loss, and pitting of spur gear tooth in altered tooth-sum

Keywords： spur gear     power recirculating test rig     altered tooth-sum gearing     scanning electron microscopy (SEM)    

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Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 9-9 doi: 10.1007/s11465-021-0665-z

Abstract: Gear wear is one of the most common gear failures, which changes the mesh relationship of normal gearthe model of mesh relationship and reveal the vibration characteristics of external spur gears with gearthe influence of gear wear on mesh stiffness and unloaded static transmission error (USTE).Based on the mesh stiffness and USTE considering gear wear, a gear dynamic model is established, andthe vibration characteristics of gear wear are numerically studied.

Keywords： gear wear     mesh relationship     mesh stiffness     transmission error     vibration characteristics    

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Mathematical model and manufacture programming of loxodromic-type normal circular-arc spiral bevel gear

Zhenyun DUAN, Houjun CHEN, Zhilan JU, Jian LIU

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 312-321 doi: 10.1007/s11465-012-0308-5

Abstract:

In this paper, loxodromic-type normal circular-arc spiral bevel gear is proposed as a novel applicationof the circular-arc tooth profile at the gear transmission with intersecting axes.investigated, and the obtained results primarily reflect the superior performance of the proposed novel gear

Keywords： loxodrome     circular-arc tooth profile     Wildhaber-Novikov (W-N) gear     spiral bevel gear    

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Design optimization of a wind turbine gear transmission based on fatigue reliability sensitivity

Genshen LIU, Huaiju LIU, Caichao ZHU, Tianyu MAO, Gang HU

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 61-79 doi: 10.1007/s11465-020-0611-5

Abstract: Fatigue failure of gear transmission is one of the key factors that restrict the performance and serviceOne of the major concerns in gear transmission under random loading conditions is the disregard of dynamicIn this work, a novel gear transmission optimization model based on dynamic fatigue reliability sensitivityis developed to predict the optimal structural parameters of a wind turbine gear transmission.In the model, the dynamic fatigue reliability of the gear transmission is evaluated based on stress–strength

Keywords： gear transmission     fatigue reliability     reliabi-lity sensitivity     parameter optimization    

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Contact fatigue life prediction of a bevel gear under spectrum loading

Pan JIA, Huaiju LIU, Caichao ZHU, Wei WU, Guocheng LU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 123-132 doi: 10.1007/s11465-019-0556-8

Abstract: An accurate geometry model of a hypoid gear utilized in the main reducer of a heavy-duty vehicle is developedin this study with the commercial gear design software MASTA.

Keywords： bevel gear     rolling contact fatigue (RCF)     multiaxial fatigue criterion     load spectrum     damage accumulation    

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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 loads applied to these transmissions. In order to understand the dynamic behavior of planetary gearboxes in such conditions, a mathematic model is developed including driving unit, transmission and load. The variability of load induces a variable speed of the transmission which is taken into account when characterizing the main dynamic parameter of the transmission which is the mesh stiffness function. This function is not periodic following the variability of the transmission speed. The computation of the dynamic response shows an intimate relation between the vibration amplitude level and the load value. As the load increase the vibration level increase. A combined amplitude and frequency modulation is observed which is well characterized using Short Time Fourier transform more suited than the spectral analysis.

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

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Coupled Thermo-Mechanical Simulation of Gear Preforming Based on Finite Deformation Theory

Ying Fuqiang,Pan Xiaoyong,Li Min

Strategic Study of CAE 2007, Volume 9, Issue 7,   Pages 47-52

Abstract:

Gear preforming by cross wedge rolling is an original question for discussionThis paper ties the advantages of preforming by CWR and the principle of generated gear together, andthe die suited for gear rolling has been designed.Based on the finite deformation theory, the coupled thermal-mechanical constitutive model of gear rollingfrom the simulation has been analyzed also in detail which provide references for further study of gear

Keywords： cross wedge rolling(CWR)     gear     coupled thermo-mechanical     FEM    

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The Innovation-design of Pan-spiral Bevel Gear and Its Secondary Development of Applications

Liang Guiming

Strategic Study of CAE 2001, Volume 3, Issue 7,   Pages 70-78

Abstract: They not only may substitute the whole Gleason bevel gear system but also accomplish the function which

Keywords： spiral bevel gear     innovation design     secondary development    

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Effect of friction coefficients on the dynamic response of gear systems

Lingli JIANG, Zhenyong DENG, Fengshou GU, Andrew D. BALL, Xuejun LI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 397-405 doi: 10.1007/s11465-017-0415-4

Abstract: In turn, such changes can significantly affect the dynamic responses and running status of gear systems

Keywords： dynamic response     friction coefficient     wind loads     wind turbine gearbox    

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The Application of Moving Frame in the Calculation of Spiral Bevel Gear’s Principal Curvature

Wang Yuqing,Liang Jian

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 68-70

Abstract:

the calculation of contacted points´ principal curvature is the key to determine contacted area. Traditionally, the method of determining principal curvature is to make use of the theory of mesh and coordinate transform. However, this method is complex. In this paper, based on the feature of curve surface, moving frame and co-differential are employed to give a sententious, effective algorithm of principal curvature. Then, according to the formulation of contacted area, an application example is given. This algorithm can be used for calculation of principal curvature in all kinds of curve surfaces.

Keywords： spiral bevel gear     principal curvature     moving frame    

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Title Author Date Type Operation

High-precision gyro-stabilized control of a gear-driven platform with a floating gear tension device

Journal Article

100 Years of Gear Measurement Technology——Review & Prospect

Shi Zhaoyao,Fei Yetai,Xie Huakun

Journal Article

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

Journal Article

Russian school of the theory and geometry of gearing: Its origin and golden period (1935 --1975)

Dmitry BABICHEV,Sergey LAGUTIN,Natalya BARMINA

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

Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing

H. K. SACHIDANANDA, Joseph GONSALVIS, H. R. PRAKASH

Journal Article

Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Journal Article

Mathematical model and manufacture programming of loxodromic-type normal circular-arc spiral bevel gear

Zhenyun DUAN, Houjun CHEN, Zhilan JU, Jian LIU

Journal Article

Design optimization of a wind turbine gear transmission based on fatigue reliability sensitivity

Genshen LIU, Huaiju LIU, Caichao ZHU, Tianyu MAO, Gang HU

Journal Article

Contact fatigue life prediction of a bevel gear under spectrum loading

Pan JIA, Huaiju LIU, Caichao ZHU, Wei WU, Guocheng LU

Journal Article

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

Coupled Thermo-Mechanical Simulation of Gear Preforming Based on Finite Deformation Theory

Ying Fuqiang,Pan Xiaoyong,Li Min

Journal Article

The Innovation-design of Pan-spiral Bevel Gear and Its Secondary Development of Applications

Liang Guiming

Journal Article

Effect of friction coefficients on the dynamic response of gear systems

Lingli JIANG, Zhenyong DENG, Fengshou GU, Andrew D. BALL, Xuejun LI

Journal Article

The Application of Moving Frame in the Calculation of Spiral Bevel Gear’s Principal Curvature

Wang Yuqing,Liang Jian

Journal Article