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- Title
Operational modal analysis on a pump operating at varying speeds: an industrial history case.
- Authors
VU VIET-HUNG; BECHIR, BADRI; MARC, THOMAS; PIERRE, JEAN
- Abstract
Industrial hydraulic pumps are complex structures on which vibrations can be harmful for reliability, fatigue of components and productivity. The application of vibration analysis and diagnosis on a huge water treatment pump at the City of Montreal's facility is presented in this paper. By using a Short Time Auto-Regressive (STAR) method combined with a modal test, it is seen that the dynamic properties and behavior of the pump included both rotating and fixed structures can be evaluated from the experimental analysis on the vibration measurement signal during its normal working condition. Natural frequencies, damping ratios and rotating speed can be clearly identified and monitored. It is shown that the analysis and diagnosis from operational vibration measurement is a very effective technique for the assessment of the huge machines in real working condition.
- Subjects
STRUCTURAL dynamics; MODAL analysis; HISTORIOGRAPHY; DYNAMICS; MODE matching
- Publication
Mechanics & Industry, 2016, Vol 17, Issue 1, p101-1
- ISSN
2257-7777
- Publication type
Article
- DOI
10.1051/meca/2015043