Control of seismic and operational vibrations of rotating machines using semi-active mounts
| Autor: | T. T. Soong, R. Rana |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Engineering
business.industry Event (computing) Mechanical Engineering Building and Construction Structural engineering Geotechnical Engineering and Engineering Geology Centrifugal pump Dual (category theory) Vibration Control theory Earthquake shaking table Random vibration Isolation (database systems) business Excitation Civil and Structural Engineering |
| Zdroj: | Earthquake Engineering and Engineering Vibration. 3:85-100 |
| ISSN: | 1993-503X 1671-3664 |
| Popis: | A dual isolation problem for rotating machines consists of isolation of housing structures from the machine vibrations and protection of machines during an earthquake to maintain their functionality. Desirable characteristics of machine mounts for the above two purposes can differ significantly due to difference in nature of the excitation and performance criteria in the two situations. In this paper, relevant response quantities are identified that may be used to quantify performance and simplified models of rotating machines are presented using which these relevant response quantities may be calculated. Using random vibration approach with a stationary excitation, it is shown that significant improvement in seismic performance is achievable by proper mount design. Results of shaking table experiments performed with a realistic setup using a centrifugal pump are presented. It is concluded that a solution to this dual isolation problem lies in a semi-active mount capable switching its properties from ‘operation-optimum’ to ‘seismic-optimum’ at the onset of a seismic event. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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