Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
| Autor: | Gustavo Gabriel Vignolo, Lidia Maria Quinzani, Claudio E. Merelli, Daniel O. Barilá |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Ingeniería Mecánica
PERTURBATION METHOD Mechanical Engineering DYNAMIC COEFFICIENTS JOURNAL BEARING 02 engineering and technology INGENIERÍAS Y TECNOLOGÍAS 021001 nanoscience & nanotechnology Condensed Matter Physics Mecánica Aplicada 020303 mechanical engineering & transports 0203 mechanical engineering purl.org/becyt/ford/2 [https] Mechanics of Materials purl.org/becyt/ford/2.3 [https] General Materials Science 0210 nano-technology Perturbation method Humanities Civil and Structural Engineering Mathematics |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| Popis: | A set of simple expressions is deduced for static and dynamic parameters associated to hydrodynamic journal bearings (JB). The behavior of this system is governed by two dimensionless numbers, the aspect ratio, L/D, and the eccentricity ratio, η. In a previous work, we presented a regular perturbation method that extended the Ocvirk solution and successfully described isothermal JBs up to L/D and η of ∼1/2. Presently, we extend that methodology, modified using a smaller perturbation parameter, to obtain analytical expressions of the dynamic coefficients, as well as static variables like friction factor, load carrying capacity, lubricant flow rate and phase angle. The deduced expressions successfully describe the static and dynamic behavior of JBs up to L/D and η of ∼3/4. Fil: Merelli, Claudio Ernesto. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina Fil: Barilá, Daniel Oscar. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina Fil: Vignolo, Gustavo Gabriel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina Fil: Quinzani, Lidia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina |
| Databáze: | OpenAIRE |
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