The path of rolling elements in defective bearings: Observations, analysis and methods to estimate spall size
| Autor: | Dick Petersen, Alireza Ahmadi, Carl Q. Howard |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Bearing (mechanical) Acoustics and Ultrasonics business.industry Mechanical Engineering 02 engineering and technology Structural engineering Condensed Matter Physics Spall 01 natural sciences Displacement (vector) law.invention Vibration 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials law 0103 physical sciences Path (graph theory) Range (statistics) Raceway business Estimation methods 010301 acoustics |
| Zdroj: | Journal of Sound and Vibration. 366:277-292 |
| ISSN: | 0022-460X |
| DOI: | 10.1016/j.jsv.2015.12.011 |
| Popis: | This paper describes the experimental investigation of the vibration signature generated by rolling elements entering and exiting a notch defect in the outer raceway of a bearing. The vibration responses of the bearing housing and the displacement between the raceways were measured and analyzed. These key features can be used to estimate the size of the defect and is demonstrated in this paper for a range of shaft speeds and bearing loads. It is shown that existing defect size estimation methods include assumptions that describe the path of the rolling elements in the defect zone leading to poor estimates of defect size. A new defect size estimation method is proposed and is shown to be accurate for estimating a range of notch defect geometries over a range of shaft speeds and applied loads. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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