Non-synchronous vibration of a Jeffcott rotor due to internal radial clearance in roller bearings
| العنوان: | Non-synchronous vibration of a Jeffcott rotor due to internal radial clearance in roller bearings |
|---|---|
| المؤلفون: | Jing Wu, Mathias Legrand, Christophe Pierre |
| المساهمون: | Legrand, Mathias, Structural Dynamics and Vibration Laboratory [Montréal], Department of Mechanical Engineering [Montréal], McGill University = Université McGill [Montréal, Canada]-McGill University = Université McGill [Montréal, Canada] |
| المصدر: | HAL 8th IFToMM International Conference on Rotor Dynamics, KIST 8th IFToMM International Conference on Rotor Dynamics, KIST, Sep 2010, Seoul, South Korea. pp.446-453 |
| بيانات النشر: | HAL CCSD, 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | [PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph], Jeffcott rotor, time-marching technique, [PHYS.MECA.VIBR] Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph], roller bearing, non-synchronous vibration, contact mechanics, [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph], [SPI.MECA.VIBR] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph] |
| الوصف: | International audience; Internal radial clearance (IRC) in roller bearings must be kept to a minimum to avoid non-synchronous vibration (NSV). However, tight IRC increases the risk of bearing durability so that initial clearance is often on the high side and then reduced if necessary when problems with NSV are detected. In rolling element bearings, non-synchronous vibration may be originated by nonlinear contacts, which strongly depend on the IRC. In this paper, instead of the commonly used Hertz contact theory, the Lagrangian multipliers method is adopted to handle the nonlinear contacts between rollers and the outer ring. In order to reduce computational costs, a modal reduction technique is used. The influence of the roller bearing parameters on the NSV is analyzed. Among the existing parameters, the IRC plays the most important role in controlling the NSV. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::133c5e4fada8366a52011e14e2359c58 https://hal.science/hal-00533285 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.dedup.wf.001..133c5e4fada8366a52011e14e2359c58 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |