Physical basis of rolling bearing vibration formation of structural
| Autor: | Mikolay Hruntovich, Nadzeya Hruntovich, Elena Gracheva, Aliaksei Kapanski, Larisa Markaryants |
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| Rok vydání: | 2020 |
| Předmět: |
lcsh:GE1-350
Bearing (mechanical) Materials science Basis (linear algebra) business.industry Rotor (electric) Bearing vibration 0211 other engineering and technologies 02 engineering and technology Structural engineering 010501 environmental sciences Physics::Classical Physics 01 natural sciences law.invention Physics::Fluid Dynamics Vibration law Development (differential geometry) 021108 energy business lcsh:Environmental sciences 0105 earth and related environmental sciences |
| Zdroj: | E3S Web of Conferences, Vol 220, p 01046 (2020) |
| ISSN: | 2267-1242 |
| Popis: | The problem of increasing the reliability of detecting defects, both in new rolling bearings and the ones having already been in operation is current. The article describes the physical foundations of vibration of rolling bearings, caused by the different dimensions of the rolling elements and increased microwaves of the rings. A classification of rolling bearing defects was proposed, as well as calculation formulas for vibration frequencies corresponding to the indicated defects. It is shown that the vibration level at the overturning frequency depends on the gap size and the rotor mass. As an example, possible defects of rolling bearing No.310 were considered and their vibration frequencies were calculated. The frequency range in which defects of the rings and rolling elements appear was installed. An explanation of the reasons for the occurrence of high-frequency vibration was given. The combination of defects in the rolling elements of different dimensions and imbalance in the rotor causes the intensive development of microshells on the rolling bearing rings. Examples of experimental vibroacoustic characteristics were given to illustrate the physical processes of vibration in rolling bearings with various defects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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