Finite element method model to predict bulk and flash temperatures on polymer gears

Fernandes, Carlos; Rocha, Diogo M. P.; Martins, Ramiro C.; Magalhães, Luís; Seabra, Jorge

doi:10.1016/j.triboint.2017.12.027

Cited by 88 publications

(34 citation statements)

References 27 publications

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“…As a cost-effective and efficient simulation tool, the finite element method is widely used in gear thermal analysis. [30][31][32] Due to the same flash temperature in the target measurement position and the direct measurement position, the analysis of gear flash temperature is not performed in this paper. And the difference between target measurement position and the direct measurement position is the bulk temperature.…”

Section: Results Analysismentioning

confidence: 99%

A temperature measurement method for testing lubrication system or revealing scuffing failure mechanism of spur gear

Chang

Liu

2018

Proceedings of the Institution of Mechanical Engineers, Part J:

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In order to meet the needs of temperature measurement for testing lubrication system or revealing scuffing failure mechanism of spur gear, a temperature measurement method analysis is carried out. This method shifts the high temperature region to a position convenient for measurement. And the measurement target including the highest temperature of gear and its location are also shifted to the new position. Considering the change of gear temperature field caused by thermal barrier covering the end face, the temperature difference of the target measurement position and the direct measurement position is analyzed by finite element method. Taking a spur gear pair as an example, its temperature field is obtained in the thermal steady state before and after shifting of temperature. The results show that temperature of the target measurement position and the direct measurement position is same in distribution, and temperature of the direct measurement position is higher than the temperature in the target measurement position. The highest temperature of the direct measurement position increases by 2.5%. As a result, considering the increment as the safety margin, it is not conservative to estimate the temperature in the target measurement position by the measured temperature data in the direct measurement position. And the measured temperature data also will help to find out the location of the highest temperature of gear in the target measurement position. Meanwhile, the accidental risk of scuffing failure can be avoided during experimental research in testing lubrication system or revealing scuffing failure mechanism by this temperature measurement method. And the comparison of the analytical results with the experimental measurement data shows good agreement.

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Section: Results Analysismentioning

confidence: 99%

A temperature measurement method for testing lubrication system or revealing scuffing failure mechanism of spur gear

Chang

Liu

2018

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…h v represents the convective heat transfer coefficient, which can be obtained by Ref. [37]. S e denotes the areas of convective heat transfer.…”

Section: Bulk Temperaturementioning

confidence: 99%

A Modified Wear Model Considering Contact Temperature for Spur Gears in Mixed Elastohydrodynamic Lubrication

Zhou

Xing

et al. 2020

Tribol Lett

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In this study, a modified wear model considering contact temperature for spur gears in mixed elastohydrodynamic lubrication (EHL) is proposed. The contact temperature consists of bulk temperature and flash temperature. The bulk temperature is determined by the thermal network model, whereas the flash temperature is estimated through the published method. The bulk temperature, which was rarely included in the previous works, substantially has a considerable influence on the tooth wear in mixed EHL. It is also found that the lower contact temperature contributes to the reduction of gear wear depth. Furthermore, the effects of gear basic geometrical parameter and operating parameter on wear depth are investigated. The results show that the wear depth decreases with the increased tooth width, module, pressure angle and rotational velocity but increases with the surface roughness and torque. It indicates that wear resistance of tooth surfaces can be enhanced by optimising the design parameters of gear drives.

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“…Using simulation analysis methods, Shi et al [13] obtained the steady temperature field and tooth surface flash temperature of the gear through simulation analysis. Fernandes et al [14] used the finite element method to construct a gear finite model of the bulk temperature and flash temperature. Luo et al [15] used APDL to establish a single-tooth finite element model, analyzed the factors affecting the bulk temperature.…”

Section: Introductionmentioning

confidence: 99%

Temperature Field Simulation and Experimental Study of Anti-backlash Single-Roller Enveloping Hourglass Worm Gear

Wang

Deng

2020

Chin. J. Mech. Eng.

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In gear transmission, temperature rise has a non-negligible impact on the accuracy, noise and transmission efficiency. However, there is no relevant research on the temperature rise of the anti-backlash single-roller enveloping hourglass worm (ASEHW) gear. To solve this problem, based on tribology principle and Hertz contact theory, the thermal power calculation method of the ASEHW gear was proposed for the first time and thermal analysis was carried out by Ansys software. The bulk temperature of the ASEHW gear under four different rotating speed (300 r/min, 600 r/min, 900 r/ min, 1200 r/min) is calculated. The main factors causing temperature rise of the ASEHW gear are analyzed theoretically. Meanwhile, an experimental study is performed to verify the simulation results and validate the theory methods. The theory presented in this paper provides a solution for the thermal power calculation of ASEHW gear. This research provides a theoretical basis for further optimization of ASEHW gear.

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Finite element method model to predict bulk and flash temperatures on polymer gears

Cited by 88 publications

References 27 publications

A temperature measurement method for testing lubrication system or revealing scuffing failure mechanism of spur gear

A temperature measurement method for testing lubrication system or revealing scuffing failure mechanism of spur gear

A Modified Wear Model Considering Contact Temperature for Spur Gears in Mixed Elastohydrodynamic Lubrication

Temperature Field Simulation and Experimental Study of Anti-backlash Single-Roller Enveloping Hourglass Worm Gear

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