Rolling element bearings absolute life prediction using modal analysis

被引：0

作者：

Mostafa Yakout

A. Elkhatib

M. G. A. Nassef

机构：

[1] McMaster University,Department of Mechanical Engineering

[2] Alexandria University,Production Engineering Department

来源：

Journal of Mechanical Science and Technology | 2018年 / 32卷

关键词：

Bearing life; Dynamic characteristics; Dynamic load rating; Modal analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper, the authors introduce an experimental procedure for predicting the fatigue life of each individual rolling element bearing separately using vibration modal analysis. The experimental procedure was developed based on a statistical analysis. A statistical analysis was performed to find an empirical model that correlates the dynamic load capacity of rolling bearings to their dynamic characteristics (Natural frequencies and damping). These dynamic characteristics are obtained from the frequency response function of each individual bearing that results from vibration modal analysis. A modified formula to the already known Lundberg-Palmgren life formula is proposed for rolling element bearings. Given the modified formula, one can predict the fatigue life of each individual rolling element bearing based on its dynamic characteristics. The paper compares the results from the modified formula with those from Lundberg-Palmgren formula. The modified formula provides an accurate prediction for the fatigue life of each individual bearing based on its dynamic characteristics. The experimental validation of the modified formula is considered for future work. Therefore, it can be used in various applications of rolling element bearings in machinery systems.

引用

页码：91 / 99

页数：8

共 30 条

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