Effect of manganese phosphate conversion coating with different crystal sizes on fatigue life of 20MnCrS5 steel helical gears

Zang, Libin; Chen, Yong; Hou, Weijie; Sun, Tao; Wu, Yimin; Zhao, Baoshan

doi:10.1016/j.triboint.2023.108622

Cited by 3 publications

(3 citation statements)

References 31 publications

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“…Total damping and stiffness of the j th slice of the i th LOA at the moment t can be computed by inserting the parameters into Eqs. (19)(20)(21)(22)(23)(24)(25)(26)(27).…”

Section: Stiffness and Damping Calculation Resultsmentioning

confidence: 99%

“…The effect of pitting on TVMS is more evident, and its presence should not be ignored. The experimental gear was purified and dry-cleaned using n-heptane, and the micro-roughness of the tooth surface was measured by a roughness tester (SURFCOM NEX 001 SD-12, ACCRE-TECH, JAPAN) with a uniform sampling length set at 0.5 mm [27]. Fig.…”

Section: Stiffness and Damping Calculation Resultsmentioning

confidence: 99%

“…The TVMS is estimated for various pitting dimensions by varying L and W . The maximum pitting length is approximately 5 mm and the width is around 1-3 mm [27]. Thus, the specific geometry values for pitting erosion are set as follows: 1…”

Section: Simplified Model Of Tooth Pittingmentioning

confidence: 99%

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Dynamical model of fatigue pitting fault helical gear pair considering lubricating oil film influence: Theoretical analysis and experimental verification

Pu,

Chen,

et al. 2024

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For the helical gear fault diagnosis investigation, it is essential to establish a pitting dynamics model that incorporates several nonlinear parameters to simulate the fault characteristics. This paper proposes a multi-degree-of-freedom analytical nonlinear dynamic model of helical gear pair under pitting fault, introducing the stiffness and damping parameters of gear matrix and lubricant film, the variable friction coefficient of elastohydrodynamic lubrication (EHL), and the measured meshing profile error. Contact fatigue experiments are carried out with a helical gear transmission test bench to gain the full-stage vibration response from healthy to severe pitting fault conditions to validate the reliability of the proposed nonlinear dynamics model. The distribution and amplitude of the eigenfrequencies of the analytical results, considering the influence of the lubricating oil film, are more consistent with the experimental measurements, where the sidebands between the three times and four times fundamental frequency are in acceptable agreement. The comparison results confirm the importance of considering the influence of the lubricant film when studying the dynamics of gear tooth pitting failures, and the analytical method and proposed model can be a reference for dynamical simulation modelling for gear fatigue failure diagnosis and analysis.

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“…Total damping and stiffness of the j th slice of the i th LOA at the moment t can be computed by inserting the parameters into Eqs. (19)(20)(21)(22)(23)(24)(25)(26)(27).…”

Section: Stiffness and Damping Calculation Resultsmentioning

confidence: 99%

Section: Stiffness and Damping Calculation Resultsmentioning

confidence: 99%