Unsteady-state temperature field and sensitivity analysis of gear transmission

Li, Wei; Jingyun, Tian

doi:10.1016/j.triboint.2017.07.019

Cited by 39 publications

(24 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, the gear structure will be damaged by the common method. 20 Therefore, it cannot provide enough measurement points to record the temperature distribution. Besides, the location of the highest temperature of gear is not known before measuring temperature.…”

Section: Temperature Measurement Methodsmentioning

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:

View full text Add to dashboard Cite

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.

show abstract

Section: Temperature Measurement Methodsmentioning

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:

View full text Add to dashboard Cite

show abstract

“…Predicting the temperature distribution of an intermediate gearbox is challenging, because the heat convection inside the gearbox is determined by the intermittent splashing behavior of the lubricating oil, which is relatively unknown. The splashing behavior can only be determined by experiments [5][6][7] or simulations that do not consider the effect of the flow field [5,6,8,9], which inevitably leads to design errors. Therefore, studying the lubrication and temperature characteristics of an intermediate gearbox under splash lubrication remains a significant challenge.…”

Section: Introductionmentioning

confidence: 99%

“…Over the past few decades, several scholars have studied the lubrication and temperature characteristics of gears and bearings. Li et al [5,6] obtained the temperature field distribution of spur/helical gears due to frictional heat using a finite element parametric model. The simulation results were consistent with the experimental results.…”

Section: Introductionmentioning

confidence: 99%

CFD-Based Investigation of Lubrication and Temperature Characteristics of an Intermediate Gearbox with Splash Lubrication

Wang

Wei

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

In this study, we propose a computational fluid dynamics (CFD)-based method to study the lubrication and temperature characteristics of an intermediate gearbox with splash lubrication. A volume of fluid (VOF) multiphase model was used to track the interface between oil and air. A multiple reference frame (MRF) model was adopted to accurately simulate the movement characteristics of the gears, bearings, and the surrounding flow field. The thermal-fluid coupling computational model of an intermediate gearbox with splash lubrication was then established. Combined with experimental results, we verified that the lubricating oil temperature was below the limit requirement (<110 °C). The numerical results revealed that large amounts of lubricating oil were splashed onto the tooth surfaces near the gear meshing area. A large convective heat transfer coefficient corresponds to a low gear tooth surface temperature. The tooth surface temperature of the driving gear is higher than that of the driven gear. The distribution law of oil volume fraction of the bearing roller was jointly affected by the roller rotation direction and gravity. The convective heat transfer coefficient of the roller wall was largely related to the lubrication environment of the roller, including the oil distribution inside the bearing cavity and the flow rate.

show abstract

“…During the transmission of the gear, due to the relative sliding of the meshing tooth surface, an instantaneous high temperature is generated. The high temperature of this moment is called the flash temperature [1][2][3][4]. Since the teeth are constantly engaged at the meshing area, the overall temperature of the gear is increased.…”

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.

View full text Add to dashboard Cite

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.

show abstract

Unsteady-state temperature field and sensitivity analysis of gear transmission

Cited by 39 publications

References 21 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

CFD-Based Investigation of Lubrication and Temperature Characteristics of an Intermediate Gearbox with Splash Lubrication

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

Contact Info

Product

Resources

About