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Stochastic uncertain lubrication in gear transmission subjected to tribodynamic loading

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A stochastic uncertain tribodynamic model is established for a spur gear pair for the first time.The stochastic uncertainty of pinion rotation speed propagated to lubrication performance is investigated.The probability density function of the minimum lubricant film thickness hmin evolves over time periodically at interval of an engagement process.Correspondence between abrupt increase in meshing force and amplification of hmin uncertainty is found.Robust and reliable lubrication performance can be achieved by suppressing the hmin uncertainty and decreasing the lubrication failure probability.This can be done by increasing lubricant viscosity,and decreasing input torque and uncertainty level of input rotation speed.This work lays a solid foundation for robust and reliability based optimization for tribodynamic gear system.

stochastic uncertaintygearselastohydrodynamic lubrication(EHL)tribodynamics

Zhou CHEN、Haiming SHA、Sheng LI、Zheming TONG、Shuiguang TONG

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State Key Laboratory of Fluid Power and Mechatronic Systems,Zhejiang University,Hangzhou 310027,China

School of Mechanical Engineering,Zhejiang University,Hangzhou 310027,China

Wright State University,3640 Colonel Glenn Highway,Dayton,OH 45435,USA

National Natural Science Foundation of ChinaZhejiang Provincial Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities

52205287LY22E0500062021-KYY-508105-0003

2024

10.1007/s40544-023-0843-6

摩擦(英文)

摩擦(英文)

CSTPCDEI
ISSN：2223-7690
年,卷(期)：2024.12(8)
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