철차 베어링의 내구수명에 대한 설계변수의 민감도 해석
Sensitivity Analysis of Design Parameters for the Fatigue Life of a Railway Tapered Roller Bearing Unit
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초록
An axle bearing is one of the most important components to guarantee the service life of a rail vehicle. In order to ensure the stable and reliable bearing life, it is essential to estimate the fatigue life of an axle bearing under the loading conditions. The fatigue life of a bearing is affected by many parameters such as material properties, heat treatment, lubrication conditions, operating temperature, loading conditions, bearing geometry, the internal clearance of bearing, and so on. Because these factors are so complicatedly related with each other, it is very important to investigate the effects of these factors on the axle bearing life. This paper presents the process of estimating the fatigue life of a railroad roller bearing, taking into account geometric parameters of the bearing in the life calculation. On the basis of the process, the effects of bearing geometric parameters on the fatigue life are analyzed using Taguchi method.
Abstract
An axle bearing is one of the most important components to guarantee the service life of a rail vehicle. In order to ensure the stable and reliable bearing life, it is essential to estimate the fatigue life of an axle bearing under the loading conditions. The fatigue life of a bearing is affected by many parameters such as material properties, heat treatment, lubrication conditions, operating temperature, loading conditions, bearing geometry, the internal clearance of bearing, and so on. Because these factors are so complicatedly related with each other, it is very important to investigate the effects of these factors on the axle bearing life. This paper presents the process of estimating the fatigue life of a railroad roller bearing, taking into account geometric parameters of the bearing in the life calculation. On the basis of the process, the effects of bearing geometric parameters on the fatigue life are analyzed using Taguchi method.
참고문헌 (10)
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