Dynamic Characteristics of Rotor-Bearing System with a Labyrinth Seal
| Autor: | Shiuh Hwa Shyu, Yu Wei Chen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry Mechanical Engineering Perturbation (astronomy) 02 engineering and technology Mechanics Labyrinth seal 01 natural sciences Finite element method 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials 0103 physical sciences General Materials Science Geotechnical engineering business 010301 acoustics |
| Zdroj: | Key Engineering Materials. 739:169-181 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.739.169 |
| Popis: | In this paper, the dynamic characteristics of rotor-bearing system with a labyrinth seal are investigated. The dynamic coefficients of labyrinth seal and the whirl speeds of rotor-bearing system are analyzed. The simplified rotor-bearing model consists of a rigid disk and a flexible shaft. The rotor-bearing system supported by two ball bearings, which are modeled as the spring-damper systems. A labyrinth seal supports one of the rigid disks. The perturbation approach has been applied to the governing equations of the bulk-flow model to calculate the dynamic coefficients of labyrinth seal. The Finite Element Method (FEM) is utilized to model the flexible-rotor system. The numerical results show the labyrinth seal effect on the dynamic characteristics of rotor-bearing system, which depend on a great variety of parameters such as geometry of the labyrinth seal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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