Application of Power Spectral Density Method to Fatigue Life Estimation of the Axle Structure

Rui Feng Guo; Peng Li Wang

doi:10.4028/www.scientific.net/AMM.487.272

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 487Application of Power Spectral Density Method to...

Application of Power Spectral Density Method to Fatigue Life Estimation of the Axle Structure

Abstract:

Based on the random vibration theory, fatigue strength theory and Miner cumulative damage theory, the formulas for estimation of fatigue life which can be coped with narrowband and broadband random vibration was derived by the peak distribution function. The power spectral density function of axle structure is deduced after the power spectral density of standard road and the vibration model of wheel had studying. Combined the power spectral density function with broadband random vibration fatigue life estimation formula, the fatigue life of axle structure was obtained. This method is simple and has a strong engineering practicality.

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Periodical:

Applied Mechanics and Materials (Volume 487)

Pages:

272-275

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.487.272

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Online since:

January 2014

Authors:

Rui Feng Guo, Peng Li Wang*

Keywords:

Broadband Random Vibration, Fatigue Life, Narrowband Random Vibration, Power Spectral Density

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* - Corresponding Author

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