Influence of frictional excitations on the diagnostic features of helical gears under different operating conditions

Xiuquan Sun, Tie Wang, Ruiliang Zhang, Fengshou Gu, Andrew Ball

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Gradual wear of gear tooth occurs inevitably over a long period of service life, which results in not only degraded transmission performances but also increases noise and vibration due to variations of frictional excitation. For helical gear, tremendous investigations on meshing stiffness and tooth surface impact have been conducted, but time-varying frictional excitation is less considered due to the complicated lubrication mechanism and time-varying contact mesh line length. Frictional excitation is affected by not only lubricant viscosity, sliding velocity and rolling velocity, but also the variation of specific load due to the time-varying contact mesh line length. To achieve high accuracy and reliability of monitoring gear conditions. This study focuses on the influence of viscosity and overlap ratios on vibration characteristics of helical gear by numerical analysis and experimental studies. The experimental results of viscosity tests show that in the frequency range of 4000-4300 Hz, the amplitudes of vibration signal increase gradually with the decrease in lubricant viscosities. For analysis of overlap ratio tests, the amplitudes of vibration signals of 44% overlap ratio are higher than the other three ratios because the total contact ratio is approximate to an integer.
Original languageEnglish
Title of host publicationFifteenth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies (CM 2018/MFPT 2018)
PublisherBritish Institute of Non-Destructive Testing
Pages522-531
Number of pages10
ISBN (Print)9781510871359
Publication statusPublished - 1 Dec 2018
Event15th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies, CM 2018/MFPT 2018 - Nottingham, United Kingdom
Duration: 10 Sep 201812 Sep 2018

Conference

Conference15th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies, CM 2018/MFPT 2018
CountryUnited Kingdom
CityNottingham
Period10/09/1812/09/18

Fingerprint

Helical gears
Viscosity
Lubricants
Gear teeth
Service life
Lubrication
Gears
Numerical analysis
Stiffness
Wear of materials
Monitoring

Cite this

Sun, X., Wang, T., Zhang, R., Gu, F., & Ball, A. (2018). Influence of frictional excitations on the diagnostic features of helical gears under different operating conditions. In Fifteenth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies (CM 2018/MFPT 2018) (pp. 522-531). British Institute of Non-Destructive Testing.
Sun, Xiuquan ; Wang, Tie ; Zhang, Ruiliang ; Gu, Fengshou ; Ball, Andrew. / Influence of frictional excitations on the diagnostic features of helical gears under different operating conditions. Fifteenth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies (CM 2018/MFPT 2018). British Institute of Non-Destructive Testing, 2018. pp. 522-531
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abstract = "Gradual wear of gear tooth occurs inevitably over a long period of service life, which results in not only degraded transmission performances but also increases noise and vibration due to variations of frictional excitation. For helical gear, tremendous investigations on meshing stiffness and tooth surface impact have been conducted, but time-varying frictional excitation is less considered due to the complicated lubrication mechanism and time-varying contact mesh line length. Frictional excitation is affected by not only lubricant viscosity, sliding velocity and rolling velocity, but also the variation of specific load due to the time-varying contact mesh line length. To achieve high accuracy and reliability of monitoring gear conditions. This study focuses on the influence of viscosity and overlap ratios on vibration characteristics of helical gear by numerical analysis and experimental studies. The experimental results of viscosity tests show that in the frequency range of 4000-4300 Hz, the amplitudes of vibration signal increase gradually with the decrease in lubricant viscosities. For analysis of overlap ratio tests, the amplitudes of vibration signals of 44{\%} overlap ratio are higher than the other three ratios because the total contact ratio is approximate to an integer.",
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Sun, X, Wang, T, Zhang, R, Gu, F & Ball, A 2018, Influence of frictional excitations on the diagnostic features of helical gears under different operating conditions. in Fifteenth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies (CM 2018/MFPT 2018). British Institute of Non-Destructive Testing, pp. 522-531, 15th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies, CM 2018/MFPT 2018, Nottingham, United Kingdom, 10/09/18.

Influence of frictional excitations on the diagnostic features of helical gears under different operating conditions. / Sun, Xiuquan; Wang, Tie; Zhang, Ruiliang; Gu, Fengshou; Ball, Andrew.

Fifteenth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies (CM 2018/MFPT 2018). British Institute of Non-Destructive Testing, 2018. p. 522-531.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Influence of frictional excitations on the diagnostic features of helical gears under different operating conditions

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AU - Ball, Andrew

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N2 - Gradual wear of gear tooth occurs inevitably over a long period of service life, which results in not only degraded transmission performances but also increases noise and vibration due to variations of frictional excitation. For helical gear, tremendous investigations on meshing stiffness and tooth surface impact have been conducted, but time-varying frictional excitation is less considered due to the complicated lubrication mechanism and time-varying contact mesh line length. Frictional excitation is affected by not only lubricant viscosity, sliding velocity and rolling velocity, but also the variation of specific load due to the time-varying contact mesh line length. To achieve high accuracy and reliability of monitoring gear conditions. This study focuses on the influence of viscosity and overlap ratios on vibration characteristics of helical gear by numerical analysis and experimental studies. The experimental results of viscosity tests show that in the frequency range of 4000-4300 Hz, the amplitudes of vibration signal increase gradually with the decrease in lubricant viscosities. For analysis of overlap ratio tests, the amplitudes of vibration signals of 44% overlap ratio are higher than the other three ratios because the total contact ratio is approximate to an integer.

AB - Gradual wear of gear tooth occurs inevitably over a long period of service life, which results in not only degraded transmission performances but also increases noise and vibration due to variations of frictional excitation. For helical gear, tremendous investigations on meshing stiffness and tooth surface impact have been conducted, but time-varying frictional excitation is less considered due to the complicated lubrication mechanism and time-varying contact mesh line length. Frictional excitation is affected by not only lubricant viscosity, sliding velocity and rolling velocity, but also the variation of specific load due to the time-varying contact mesh line length. To achieve high accuracy and reliability of monitoring gear conditions. This study focuses on the influence of viscosity and overlap ratios on vibration characteristics of helical gear by numerical analysis and experimental studies. The experimental results of viscosity tests show that in the frequency range of 4000-4300 Hz, the amplitudes of vibration signal increase gradually with the decrease in lubricant viscosities. For analysis of overlap ratio tests, the amplitudes of vibration signals of 44% overlap ratio are higher than the other three ratios because the total contact ratio is approximate to an integer.

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Sun X, Wang T, Zhang R, Gu F, Ball A. Influence of frictional excitations on the diagnostic features of helical gears under different operating conditions. In Fifteenth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies (CM 2018/MFPT 2018). British Institute of Non-Destructive Testing. 2018. p. 522-531