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2013 | OriginalPaper | Chapter

8. Selected Field Experience

Authors : Peter Dörfler, Mirjam Sick, André Coutu

Published in: Flow-Induced Pulsation and Vibration in Hydroelectric Machinery

Publisher: Springer London

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Abstract

Measurement of vibration or pressure pulsation data on a prototype machine may be performed in order to verify compliance with guarantee, or in a monitoring process or, in some cases, to provide data for root cause analysis if the dynamic behavior is deemed unsatisfactory. It may occur that the nature of a problem is not immediately clear and testing has to check for several possible aspects. This chapter therefore presents a number of practical cases separated from the pertinent chapters. The logic of finding the facts and possible solution strategy based on the underlying physical phenomena is demonstrated.

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previous chapter Model Tests, Techniques, and Results
next chapter Practical Guidelines
Footnotes
1
A 5 Hz low pass filter was used for the pressure history in this graph, as well as in Fig. 8.13 to avoid distraction by the 10 Hz component.
 
Literature
1.
Dörfler, P. K. (2011). Pressure wave propagation and damping in a long penstock: Proceedings of the 4th Meeting IAHR Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems, Belgrade.
2.
Martin, C. S. (1986). Stability of pump turbines during transient operation: 5th International Conference in Pressure Surges, BHRA, Hannover (pp. 61–71).
3.
Doerfler, P., Engineer, A. J., Pendse, R. N., Huvet, P. & Brahme, M. V. (1998). Stable operation achieved on a single-stage reversible pump-turbine showing instability at no-load: 19th Symposium in IAHR Section on Hydraulic Machinery and Cavitation, Singapore (Vol. I, pp. 430–440).
4.
Goldwag, E. & Berry, D. G. (1967). Von Karman Hydraulic Vortexes Causes Stay Vane Cracking on Propeller Turbines at the Little Long Generating Station of Ontario Hydro, Journal of Engineering of Power, Transaction of the ASME, Paper No.67-WA/FE-40.
5.
Lockey K. J., Keller, M., Sick, M., Staehle, M. H. & Gehrer, A. (2006). Flow induced vibrations at stay vanes: Experience at site and FD simulation of von Kármán vortex shedding, Hydro’06, Porto Carras, Greece, September 25–28.
6.
Chen, Y. N. (1973). Durch die Nebensysteme erregte Schwingungen an den Kreiselpumpenanlagen, Teil 3: Strömungserregte Schwingungen an Platten infolge der Kármánschen Wirbelstrasse, (in German), Pumpentagung Karlsruhe, October 2–4.
7.
Heskestad G. & Olberts D.R. (1960). Influence of Trailing-Edge Geometry on Hydraulic-Turbine-Blade Vibration Resulting From Vortex Excitation, Journal of Engineering for Power, Transaction of ASME, Paper No.59-Hyd-7, pp. 103–110.
8.
Toebes G.H. & Eagleson P.S. (1961). Hydroelastic Vibrations of Flat Plates Related to Trailing Edge Geometry, Journal of Basic Engineering, Transactions of ASME, Paper No.61-Hyd-16.
Metadata
Title
Selected Field Experience
Authors
Peter Dörfler
Mirjam Sick
André Coutu
Copyright Year
2013
Publisher
Springer London
Book
Flow-Induced Pulsation and Vibration in Hydroelectric Machinery

Print ISBN: 978-1-4471-4251-5

Electronic ISBN: 978-1-4471-4252-2

Copyright Year: 2013

DOI
https://doi.org/10.1007/978-1-4471-4252-2_8