Stochastic Model of Durability of Rolling Bearings Considering Assembly Innaccuracies

Abstract:

This paper presents a method of determining the reliability function of rolling bearings operating under conditions of assembly error. Both the random nature of the assembly errors and the hour-by-hour durability of the bearing in question were considered. The perturbation method of second moments was used to solve the problem. This method allows for determining the moments of first and second order of the probability distribution of the safety coefficient, which is understood as the ratio of the actual durability in hours to the predetermined bearing durability in hours. As an example, the method of determining the distribution of the durability coefficient of a rolling bearing was presented for a situation of angular misalignment of coupled shafts.

• Periodical: Solid State Phenomena (Volume 199)
• Pages: 165-169
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.199.165
• Online since: March 2013
• Authors: Jerzy Tomaszewski
• Keywords: Assembly Errors, Distribution of Bearing Life Coefficient, Fatigue Life, Misalignment, Perturbation Method of Second Moments, Random Distributions, Random Durability Coefficient, Rolling Bearing

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DOI: 10.1002/nme.1620231004

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