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| Application of geometrically similar roller conditions in bearing boundary element method |
| Received:May 28, 2014 Revised:August 28, 2014 |
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| DOI：10.7511/jslx201503017 |
| KeyWord:roller bearing rollers geometrically similar conditions bearing-BEM load distribution |
| Author | Institution |
| 杨霞 |
太原科技大学 重型机械教育部工程研究中心, 太原 |
| 鄢闯 |
太原科技大学 重型机械教育部工程研究中心, 太原 |
| 黄庆学 |
太原科技大学 重型机械教育部工程研究中心, 太原 |
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| Abstract: |
| As a multi-object contact system,roller bearing is highly non-linear.To solve its three-dimensional distribution of pressure and load,we establish a discrete model of the initial location roller;other rollers' discrete data can be obtained because they have geometrically similar conditions.Based on the three-dimensional,elastic contact boundary element method (BEM),all bearing rollers can be described as one object;therefore,the roller bearing problem of a multi-object contact system can be simplified to the problem of a three-object contact system.Considering the specificity of all bearing rollers described as one object,the boundary integral equation and coupling matrix equation are established.A bearing-BEM program using Fortran language is compiled based on geometrically similar roller conditions;with this method,a mill four-row tapered roller bearing is simulated.The bearing contact pressure and load,the rollers' contact widths and the number of contact rollers are obtained,certifying the method's validity. |
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