Time varying mesh stiffness calculation of spur gear pair considering sliding friction and spalling defects

Saxena, Ankur; Parey, Anand; Chouksey, Manoj

doi:10.1016/j.engfailanal.2016.09.003

Cited by 119 publications

(62 citation statements)

References 19 publications

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“…The spalling failure of a gear is related to the loads, ECD, and hardness in the tooth heart [24]. Under certain assumptions concerning the loads, the crack that originates from the transition layer will cause deep spalling if the ECD is too shallow or the hardness in the tooth heart is low.…”

Section: Mathematical Problems In Engineeringmentioning

confidence: 99%

Modeling and Analysis of Effective Case Depth on Meshing Strength of Internal Gear Transmissions

Liu

Wang

et al. 2018

Mathematical Problems in Engineering

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The effective case depth (ECD) plays an important role in the meshing strength of internal gear transmissions. Carburizing quenching heat treatment is commonly used to enhance gear strength and wear resistance. However, the different ECDs in internal and external gears caused by heat treatment significantly affect the meshing strength, causing vibration, reducing gear service life, and hastening malfunction in internal gear transmission. In this study, we conducted an investigation of different ECDs by the heat treatment of carburized gear pairs by numerical simulation with the finite element method (FEM) and experiment tests. We analyzed three different carburized layer models, with the ECD in the internal gear being greater than, less than, and equal to the ECD in the external gear. In addition, we investigated the ability to distinguish between hardness gradients in gear teeth by dividing the carburized depth into seven layers to improve modeling accuracy. Results revealed that the meshing strength of internal gear transmission could be significantly enhanced by adopting the model with the ECD in the internal gear being less than the ECD in the external gear, and moreover, the shear stress of carburized gears initially increased and then decreased along with depth direction, and the maximum value appeared in the middle of the lower surface.

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Section: Mathematical Problems In Engineeringmentioning

confidence: 99%

Modeling and Analysis of Effective Case Depth on Meshing Strength of Internal Gear Transmissions

Liu

Wang

et al. 2018

Mathematical Problems in Engineering

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“…Based on the given loads of Equations (15) and (16), it can be found by qualitative analysis that the rotational speeds of the carrier, the sun gear and the planet gears will increase almost linearly until time t 0 , at which the load on the sun gear starts to join and the rotational speed of the carrier will ultimately fluctuate around speed C, approximately. The time t 0 can be estimated by,…”

Section: Dynamic Simulation Of the Tooth Breakage Faultmentioning

confidence: 99%

“…This paper focus on the vibration characteristics of the planetary gear with a planet gear tooth broken. Tooth breakage leads to the reduction of the time-varying gear mesh stiffness and the incensement of mass unbalance, and these excitations will affect the gears dynamic behavior and then the generated vibration [16,17]. Compared with the flexible multibody model, the rigid multibody model can obtain an acceptable result with a much lower time cost [18], so it was most widely used in the tooth breakage fault research.…”

Section: Introductionmentioning

confidence: 99%

Effects of Tooth Breakage Size and Rotational Speed on the Vibration Response of a Planetary Gearbox

2017

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“…The developed model is capable of considering simultaneously the internal excitations due to the variable meshing stiffness and other excitations. Ankur Saxen [33] studied the mesh stiffness of different peeling sizes, positions, and shapes, taking into account the influence of the rotational speed on the meshing stiffness.…”

Section: Introductionmentioning

confidence: 99%

Improvement on Meshing Stiffness Algorithms of Gear with Peeling

et al. 2019

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This paper investigates the effect of a gear tooth peeling on meshing stiffness of involute gears. The tooth of the gear wheel is symmetric about the axis, and its symmetry will change after the gear spalling, and its meshing stiffness will also change during the meshing process. On this basis, an analytical model was developed, and based on the energy method a meshing stiffness algorithm for the complete meshing process of single gear teeth with peeling gears was proposed. According to the influence of the change of meshing point relative to the peeling position on the meshing stiffness, this algorithm calculates its stiffness separately. The influence of the peeling sizes on mesh stiffness is studied by simulation analysis. As a very important parameter, the study of gear mesh stiffness is of great significance to the monitoring of working conditions and the prevention of sudden failure of the gear box system.

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Time varying mesh stiffness calculation of spur gear pair considering sliding friction and spalling defects

Cited by 119 publications

References 19 publications

Modeling and Analysis of Effective Case Depth on Meshing Strength of Internal Gear Transmissions

Modeling and Analysis of Effective Case Depth on Meshing Strength of Internal Gear Transmissions

Effects of Tooth Breakage Size and Rotational Speed on the Vibration Response of a Planetary Gearbox

Improvement on Meshing Stiffness Algorithms of Gear with Peeling

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