The Effect of Spur Gear Tribo-Dynamic Response on Pitting Crack Nucleation

Li, Sheng; Anisetti, Anusha

doi:10.1115/detc2017-67003

Cited by 3 publications

(1 citation statement)

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“…21,22 The minimum film thickness and flash temperature of the spur gear were evaluated by Xue and Li, 23 and they were applied to predict scuffing load capacity. Li and Anusha 1,24,25 investigated the flash temperature and estimated the contact fatigue crack nucleation life under the dynamic conditions. Besides, the tribo-dynamic mechanical power loss was investigated and compared with that under the quasi-static condition.…”

Section: Introductionmentioning

confidence: 99%

Wear prediction considering dynamic load for spur gear in mixed elastohydrodynamic lubrication

Xing

Zhou

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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In this work, a wear prediction model considering the dynamic load is proposed for spur gears in mixed elastohydrodynamic lubrication (EHL). The dynamic load is calculated by gear dynamic model. Combining gear wear model and dynamic model, the wear depth under the dynamic load is determined and compared with that under quasi-static load. The comparative results show that the maximum wear depth under dynamic load is significantly larger than that under quasi-static load near engaging-in point. The effects of fractional film defect coefficient on wear depth are considerable under dynamic load, which is closely related to gear contact temperature. Furthermore, the effects of surface roughness and gear geometrical parameters on wear depth are studied. The investigation reveals that the wear depth decreases with the increased tooth width, module and pressure angle, but increases with the surface roughness. It illustrates that gear wear depth under the dynamic load can be reduced by optimizing gear geometrical parameters.

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Section: Introductionmentioning

confidence: 99%

Wear prediction considering dynamic load for spur gear in mixed elastohydrodynamic lubrication

Xing

Zhou

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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Tribo-dynamics model of a spur gear pair with gyroscopic effect and flexible shaft

Zheng

Zhou

2019

Forsch Ingenieurwes

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Mesh Stiffness and Nonlinear Dynamic Model for a Gear Drive with Revolute Pair Clearance

Huang

Sun

et al. 2023

Processes

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Bearings and other revolute pairs in gear drives will form clearances due to wear after working for a long time, which will aggravate the vibration and noise of the gear. Therefore, taking the gear drives with revolute pair clearance as the research object, the calculation formulas of the backlash and contact ratio is derived, and the time-varying mesh stiffness model considering the clearance is presented in this work. Then, a nonlinear dynamic model for the gear drives with revolute pair clearance is proposed by combining the backlash, contact ratio and the time-varying mesh stiffness. The effects of the clearance on the meshing stiffness, load sharing factor and nonlinear behavior are investigated. Results indicate that the revolute pair clearance weakens the meshing stiffness and increases working hours in single teeth contact area, thereby increasing the risk of premature failure of the gear drive. In addition, the revolute pair clearance has negligible effect on the nonlinear behavior of gear pair in low-speed running, but it can obviously change the bifurcation behavior and aggravate the vibration of the gear drive.

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The Effect of Spur Gear Tribo-Dynamic Response on Pitting Crack Nucleation

Cited by 3 publications

References 0 publications

Wear prediction considering dynamic load for spur gear in mixed elastohydrodynamic lubrication

Wear prediction considering dynamic load for spur gear in mixed elastohydrodynamic lubrication

Tribo-dynamics model of a spur gear pair with gyroscopic effect and flexible shaft

Mesh Stiffness and Nonlinear Dynamic Model for a Gear Drive with Revolute Pair Clearance

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