Abstract
Hydraulic ooscillations caused by hydraulic, electrical or mechanical excitations may provoke very strong pressure pulsations, power fluctuations and mechanical vibrations, especially if the resonance appears. Some of the cases are described in the paper. Extremely strong and massive hydrodynamic loads in a hydraulic system may also be provoked by an earthquake, which sets in motion water masses enclosed in the system. The designer of the system should always aware in mind this fact and take appropriate measures to prevent any possible accident.
Two methods for computation of possible hydrodynamic loads in a system: the method of characteristics (MOC) and the transfer matrix method (TMM), in case of a typical earthquake (selected by the seismologists) are presented in this paper.
The theory of transient flow was applied to two cases:
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Bottom outlet of an existing dam,
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Penstock and the bottom outlet of a low-head power plant.
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References
California Institute of Technology (CIT) Earthquake Engineering research Laboratory, 1951., Digitized accelerograms of the earthquakes “Ferndale”, California, October 8, 1951 (IA2, 51.1T, o21/CIT), and “Helena” Montana, October 31, 1951 (IB25, 35.1, 251/CIT)
Gajic A., 1983., A contribution to the Study of Nonstationary Phenomena in Hydroelectric Power Plant, (in Serbian), Ph. D. Dissertation, Faculty of Mechanical Engineering, University of Belgrade
Gajić A., Pejović S., 1984., Computations of the Hydraulic Oscillations, (in Serbian), XVI Yugoslav Congress of Rational and Applied Mechanic, Becici, Vol. C., pp. 211–219
Gajic A., Pejovic S, 1986, Hydraulic Loads in Hydraulic Systems During an Earthquake (in Serbian), XVII Yugoslav Congress of Rational and Applied Mechanic, Zadar, Vol. C1, pp. 281–288
Gajic A., Pejovic S, Obradovic D., 1986.a, Hydraulic Loads in Hydropower Plants During the Earthquake (in Serbo-Croatian), Elektroprivreda, Zagreb, No. 9–10, pp. 362–365
Gajić A., Predić Z., Muskatirović J., Pejović S., Manzalović P., 1990., Investigations of Cracks on the Kaplan Turbine Stay Vanes, 15 IAHR Symposium, Belgrade, p. A4, pp. A4.1 — A4.12
Gajic A., 1993., Hydraulic Oscillations and Earthquake Effects upon Hydraulic Systems, Seminar at the Faculty of Mechanical Engineering, Nagoya University, December 17-th
Gajić A., Pejović S., Stojanović Z., 1993.a, Hydraulic Oscillations Stability of low-Head HPP, 6-th IAHR WG1 Meeting, Lausanne, p 6.3, pp.6.3.1–6.3.14
Gajić A., Oba R., Ikohagi T., Ignjatović B., Muškatirović J., 1994., Flow Induced Vibrations and Cracks on Stay Vanes of a Large Hydraulic Turbine, 17-th IAHR Symposium, Int. Res. Centre of Hydr. Mach., Beijing, p. J12., pp.1283–1293
Gajic A., Pejovic S., Stojanovic Z., 1995., Fluid-Structure Interaction Analysis in Frequency Domain, 7-th IAHR WG1 Meeting, Ljubljana, p.F.5., pp. F.5.1–F.5.13
Gajić A., Pejović S., Stojanović Z., 1996., Hydraulic Oscillation Analysis using the Fluid-Structure Interaction Model, 18-th IAHR Symposium, Valencia, (Cabrera E. et al, Hydraulic Machinery and Cavitation, ISBN 7923-4210-0, Kluwer Academic Publishers), pp. 845–854
Gajic A., 2003., Case Studies in Hydraulic Systems-CSHS’03 (editor), Faculty of Mechanical Engineering, ISBN 86-7083-469-3, Belgrade
Institute for Seismic Engineering and Seismology, 1979., Preliminary Analysis of Strong Motion, Records obtained at Budva, Ulcinj, Bar and Petrovac from April 15, 1979, Motenegro, Yugoslavia Earthquake, University “Kiril & Metodij”, Publ. ISES No.64/79, Skopje
Jaeger C., 1977, Fluid Transients in Hydro-Electric Engineering Practice, Blackie, New York
Karney B., Gajic A., Pejovic S., 2003., Case Studies—Our Experience in Hydraulic Transients and Vibrations, (invited paper), Int. Conference on Case Studies in Hydraulic System s-CSHS’03, Belgrade, ISBN 86-7083-469-3., pp. 131–154
Maricic T., Haber D., S. Pejovic, B. W. Karney, Standardization as Prevention of Fatigue Cracking of Hydraulic Turbine-Generator Shaft, IEEE Electrical Power Conference “Renewable and Alternative Energy Resources”, Montreal, pp 1–8
Obradovic D, Pejovic S., Gajic A., 1986, Analysis of Earthquake Effects upon Hydraulic Structures, 5th International Conference on Pressure Surges, BHRA, Hannover, pp. 35–41
Pejović S., Krsmanović Lj., Gajić A., Obradović D., 1982., Resonance in the Piping System of a Power Plant During Filling-in, 11-th IAHR Symposium, Amsterdam, pp. 43.1–43.10
Pejović S., Gajić A., Obradović D., 1984., The Effects of Air Supply to the Draft Tube upon Hydraulic Oscillations in a Hydropower Plant,12-th IAHR Symposium, Stirling, pp. 242–253
Pejović S., Obradović D., Gajić A., 1985., Resonance in Hydropower Plants—Experiences in Yugoslavia, IAHR Work Group on the Behaviour of Hydraulic Machinery under Steady Oscillatory Conditions, Mexico City, pp. 1.1–1.13
Pejović S., Gajić A., 1986., Auto—Oscillations of a Ball Valve and Mode Shapes in the Tunnel, UNIPEDE Attelier, Dubrovnik, pp. 7.1–7.17
Pejović S., Gajić A., Obradović D., 1986.a, Auto—Oscillations of the Ball Valves—Mode Shapes in the Penstock PSPP (in Russian), Int. Conf. Hydroturbo, Varna, pp. 6.1–6.12
Pejović S., Gajić A., Obradović D., 1988., Auto—Oscillations of the Intake Wheel Gate, 14 IAHR Symposium, Trondheim, p. G5. pp. 443–450
Pejovic S, 1989, Pressure Surges and Vibrations in Hydropower Plants—Experiences in Yugoslavia, The Current State of Technology in Hydraulic Machinery, International Editorial Committee Book Series on Hydraulic Machinery, Glower Technical, pp. 177–204
Pejović S., Gajić A., 1992.a, Sensitivity and Stability Analysis of Pumping Systems and Air Chamber Influence on Hydraulic Vibrations, Int. Conference Unsteady Flow and Fluid Transients, Durham, Balkema, Roterdam, pp.229–239
Pejovic S., Gajic A., 1992.b, Cases and Incidents Due to Hydraulic Transients—Yugoslav Experiences, Int. Congress on Cases and Accidents in Fluid Systems, Sao Paulo, pp181–223
Pejovic S., Gajic A., Savic Z., Stojanonic Z., 1994., Hydraulic Stability of Bulb Turbines, 17-th IAHR Symposium, Int. Res. Centre of Hyd. Mach., Beijing, p. J2, pp. 1195–1206
Swingen S., Stojanovvic Z., Brekke H., Gajic A., 1998., Two Numerical Methods of Hydraulic Oscillation Analysis in Piping Systems including Fluid-Structure Interaction, JSME CENTENNIAL GRAND CONGRESS, International Conference on Fluid Engineering ICFE 97, Tokyo, Vol. III, pp. 1601–1606
Pejovic S., Karney B. W., Q., Zhang, and G. Kumar, 2007., Smaller Hydro, Higher Risk, IEEE Electrical Power Conference “Renewable and Alternative Energy Resources”, Montreal, pp 1–6
Zienkiewitcz O.S., 1964., Hydrodynamic Pressures due to Earthquakes, Water Power, Vol. 8., pp.382–388
Wylie B.E., Streeter V. L., Fluid Transients, Mc Graw-Hill, 1978
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© 2009 Tsinghua University Press, Beijing and Springer-Verlag GmbH Berlin Heidelberg
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Gajic, A. (2009). Hydraulic Oscillations Caused by the Earthquake. In: Xu, J., Wu, Y., Zhang, Y., Zhang, J. (eds) Fluid Machinery and Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-89749-1_13
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DOI: https://doi.org/10.1007/978-3-540-89749-1_13
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