Reliability calculation model of gears considering strength degradation

Lv, Sh. Z.; Liu, H. N.; Zhang, D. W.; Zh, Wang

doi:10.1109/icieem.2009.5344467

Cited by 7 publications

(5 citation statements)

References 5 publications

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“…Based on the P-S-N curve of the gearbox housing material [14], the Wiener strength degradation parameters of gearbox housing are determined as shown in Table 4.…”

Section: Dynamic Reliability Of the Gearbox Housingmentioning

confidence: 99%

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Dynamic Fatigue Analysis of High-Speed Trains Gearbox Using Copula Function

Liu

Chen

et al. 2022

Mathematical Problems in Engineering

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As a key component of the transmission system of high-speed trains, the reliability of gearbox is crucial to the overall reliability and driving safety of high-speed trains. In this work, a comprehensive reliability model for the key parts of the gearbox including the driving and driven gears, bearings, and gearbox housing is developed, which combines the strength degradation parameters obtained by P-S-N curves of the corresponding material, and a stress-strength interference model based on the Poisson distribution of random stress and the Wiener strength degradation process. Further, a nested Copula function reliability model of the gearbox series system is developed using the binary Frank Copula function considering the correlation of failures of different parts and different failure modes. This model realizes the dynamic reliability analysis of the gearbox under different failure modes. The reliability analysis of the key parts of the gearbox and the gearbox series system of high-speed train achieved with this model are in line with the engineering practice. This method enables dynamic tracking and monitoring of gearbox reliability during the service life of high-speed train.

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“…Based on the P-S-N curve of the gearbox housing material [14], the Wiener strength degradation parameters of gearbox housing are determined as shown in Table 4.…”

Section: Dynamic Reliability Of the Gearbox Housingmentioning

confidence: 99%

“…Dong et al [13] used a binary Wiener process to model degradation processes with two performance characteristics and successfully applied it to the reliability assessment of railway tracks. Lv et al [14] used a stress-strength interference model to study the reliability of gear systems considering the strength degradation.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Fatigue Analysis of High-Speed Trains Gearbox Using Copula Function

Liu

Chen

et al. 2022

Mathematical Problems in Engineering

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“…Because of the common load action, the failures of gear-teeth are dependent. Therefore, reliability models of gear systems considering the Common Cause Failure (CCF) are developed [4][5] by the stress-strength interference model (SSI). Other reliability models of gear trans considering failure-dependence are developed by the introduction of correlation coefficient [6][7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

Time-domain Reliability Estimation of Gear Train considering Failure-dependence

Bai

Yang

Zheng

et al. 2023

J. Phys.: Conf. Ser.

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A gear tooth or a gear is usually considered as an independent component in the traditional reliability research. However, gear trains are significantly different from the traditional series systems. Time-dependent configuration of the traditional series systems is fixed. But the meshing tooth-pairs of gear trains are changing all the time during operation. The failures of meshing tooth-pairs are dependent statistically under the common load action. In the paper, the reliability analysis considering time-domain meshing relation of tooth-pairs is studied and meshing relation equations are presented. Then, reliability analysis method of gear trains is developed based on the Monte Carlo simulation with dependent failure and time domain meshing relation. The differences of reliability results between time domain reliability analysis method and traditional series system reliability methods are illustrated by several examples.

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“…As to the reliability evaluation of mechanical transmission systems, the same reliability model as that applied to electronic systems has been widely employed [8][9][10] , without realizing the particular, periodically varying system-component relationship in mechanical transmission systems. For instance, stress-strength interference analysis method was applied to calculate gear transmission system reliability, implying that a gear is equivalent to a component [11][12][13][14] and only one tooth is considered for gear reliability estimation [15][16][17] .…”

mentioning

confidence: 99%