Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 1997.10a
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- Pages.58-63
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- 1997
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- 1598-2548(pISSN)
A Study on Vibration of Vertical Pump
수직펌프의 진동 연구
Abstract
The natural frequencies of the support system for a vertical pump, which are a key factor affecting the dynamic stability of the pump support system, are not easily predictable with analytical approaches only, due to the difficulties estimating the effective stiffness of the connections between the concrete base, the motor structure, the discharge elbow and the suction column of the pump system. This paper presents the results of a finite element analysis and an experimental study performed to identify and modify the characteristics of the pumping structure. The difficulties of modelling the effective stiffness were overcome by utilizing experimental results in the analysis. Based on analytical and experimental results, appropriate structural modifications are taken to reduce excessive vibration of the pump system to a satisfactory level.
Keywords