Effect of friction coefficients on the dynamic response of gear systems

Lingli Jiang, Zhenyong Deng, Fengshou Gu, Andrew D. Ball, Xuejun Li

Research output: Contribution to journalArticle

Abstract

The inevitable deterioration of the lubrication conditions in a gearbox in service can change the tribological properties of the meshing teeth. In turn, such changes can significantly affect the dynamic responses and running status of gear systems. This paper investigates such an effect by utilizing virtual prototype technology to model and simulate the dynamics of a wind turbine gearbox system. The change in the lubrication conditions is modeled by the changes in the friction coefficients, thereby indicating that poor lubrication causes not only increased frictional losses but also significant changes in the dynamic responses. These results are further demonstrated by the mean and root mean square values calculated by the simulated responses under different friction coefficients. In addition, the spectrum exhibits significant changes in the first, second, and third harmonics of the meshing components. The findings and simulation method of this study provide theoretical bases for the development of accurate diagnostic techniques.

LanguageEnglish
Pages397-405
Number of pages9
JournalFrontiers of Mechanical Engineering
Volume12
Issue number3
Early online date13 Jan 2017
DOIs
Publication statusPublished - Sep 2017

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Lubrication
Dynamic response
Gears
Friction
Wind turbines
Deterioration

Cite this

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title = "Effect of friction coefficients on the dynamic response of gear systems",
abstract = "The inevitable deterioration of the lubrication conditions in a gearbox in service can change the tribological properties of the meshing teeth. In turn, such changes can significantly affect the dynamic responses and running status of gear systems. This paper investigates such an effect by utilizing virtual prototype technology to model and simulate the dynamics of a wind turbine gearbox system. The change in the lubrication conditions is modeled by the changes in the friction coefficients, thereby indicating that poor lubrication causes not only increased frictional losses but also significant changes in the dynamic responses. These results are further demonstrated by the mean and root mean square values calculated by the simulated responses under different friction coefficients. In addition, the spectrum exhibits significant changes in the first, second, and third harmonics of the meshing components. The findings and simulation method of this study provide theoretical bases for the development of accurate diagnostic techniques.",
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Effect of friction coefficients on the dynamic response of gear systems. / Jiang, Lingli; Deng, Zhenyong; Gu, Fengshou; Ball, Andrew D.; Li, Xuejun.

In: Frontiers of Mechanical Engineering, Vol. 12, No. 3, 09.2017, p. 397-405.

Research output: Contribution to journalArticle

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AU - Jiang, Lingli

AU - Deng, Zhenyong

AU - Gu, Fengshou

AU - Ball, Andrew D.

AU - Li, Xuejun

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AB - The inevitable deterioration of the lubrication conditions in a gearbox in service can change the tribological properties of the meshing teeth. In turn, such changes can significantly affect the dynamic responses and running status of gear systems. This paper investigates such an effect by utilizing virtual prototype technology to model and simulate the dynamics of a wind turbine gearbox system. The change in the lubrication conditions is modeled by the changes in the friction coefficients, thereby indicating that poor lubrication causes not only increased frictional losses but also significant changes in the dynamic responses. These results are further demonstrated by the mean and root mean square values calculated by the simulated responses under different friction coefficients. In addition, the spectrum exhibits significant changes in the first, second, and third harmonics of the meshing components. The findings and simulation method of this study provide theoretical bases for the development of accurate diagnostic techniques.

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