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Abstract

Centrifugal pumps are used for different applications that include pressure boosting, wastewater, water supply, heating and cooling distribution and other industrial processes. This paper presents theoretical and experimental investigations of mechanical vibrations of a centrifugal pump. The flow in this pump, which induces pressure pulsations and mechanical vibrations, have been monitored. Vibration measurements and data collection (overall vibrations levels and frequency spectrum) were extracted from the system. In addition, one of the methods used to study vibration amplitudes for this pump is forced response analysis. To study and analyze the pump system, the finite element analysis software (ANSYS) was applied. Depending on the analysis performed and investigations outcomes, the system natural frequency coincides with the vane-pass frequency (VPF) hazardously. To attenuate the system’s vibration, a vibration control element was used. The vibration levels were reduced by a factor of 2 for a tuned element as obtained from a forced harmonic response analysis of the pump system with absorber. It is shown that the inserted element allows the centrifugal pump to work in a safe operating range without any interference with its operation.

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Bibliography

[1] T. Wnek. Pressure pulsations generated by centrifugal pumps. Technical Report TI-1, Warren Pumps Inc., Warren, Massachusetts, 1987.
[2] M.N. Kumar. Vibration analysis of vane pass frequency vibrations in single stage single volute between bearing type pumps. International Journal of Mechanical Engineering, special issue, 85–87, May 2017.
[3] S. Rao. Mechanical Vibrations. Prentice Hall, New Jersey, 2011.
[4] A. Albraik, F. Althobiani, F. Gu, and A. Ball. Diagnosis of centrifugal pump faults using vibration methods. Journal of Physics: Conference Series, 364:012139, 2012. doi: 10.1088/1742-6596/364/1/012139.
[5] C. Ning and X. Zhang. Study on vibration and noise for the hydraulic system of hydraulic hoist. In Proceedings of the 1st International Conference on Mechanical Engineering and Material Science (MEMS 2012), pages 126–128, London, 4-6 July 2012. doi: 10.2991/mems.2012.95.
[6] D.Y. Li, R.Z. Gong, H.J. Wang, X.Z. Wei, Z.S. Liu, and D.Q. Qin. Analysis of rotor-stator interaction in turbine mode of a pump-turbine model. Journal of Applied Fluid Mechanics, 9(5):2559–2568, 2016. doi: 10.18869/acadpub.jafm.68.236.25086.
[7] J. Decaix, A. Müller, F. Avellan, and C. Münch. Rans computations of a cavitating vortex rope at full load. 6th IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems, Ljubljana, Slovenia, 9-11 Sept. 2015.
[8] J. Yin, D. Wang, D.K. Walters, and X. Wei. Investigation of the unstable flow phenomenon in a pump turbine. Science China. Physics, Mechanics and Astronomy, 57(6):1119–1127, 2014. doi: 10.1007/s11433-013-5211-5.
[9] D. Li, H. Wang, G. Xiang, R. Gong, X. Wei, and Z. Liu. Unsteady simulation and analysis for hump characteristics of a pump turbine model. Renewable Energy, 77:32–42, 2015. doi: 10.1016/j.renene.2014.12.004.
[10] L. Wang, J. Yin, L. Jiao, D. Wu, and D. Qin. Numerical investigation in the “S” characteristics of a reduced pump turbine model. Science China. Technological Sciences, 54(5):1259–1266, 2011. doi: 10.1007/s11431-011-4295-2.
[11] J. Yin, D. Wang, L. Wang, Y. Wu, and X. Wei. Effects of water compressibility on the pressure fluctuation prediction in pump turbine. IOP Conference Series: Earth and Environmental Science, 15(6): 062030, 2012.
[12] D. Li, R. Gong, H.Wang, G. Xiang, X.Wei, and Z. Liu. Dynamic analysis on pressure fluctuation in vaneless region of a pump turbine. Science China. Technological Sciences, 58(5):813–824, 2015. doi: 10.1007/s11431-014-5761-4.
[13] Y. Zhou, P. Zhao. Vibration fault diagnosis method of centrifugal pump based on EMD complexity feature and least square support vector machine. Energy Procedia, 17:939–945, 2012. doi: 10.1016/j.egypro.2012.02.191.
[14] S. Farokhzad. Vibration based fault detection of centrifugal pump by fast Fourier transform and adaptive neuro-fuzzy inference system. J ournal of Mechanical Engineering and Technology, 1(3):82–87, 2013.
[15] V. Muralidharan andV. Sugumaran. Feature extraction usingwavelets and classification through decision tree algorithm for fault diagnosis of mono-block centrifugal pump. Measurement, 46(1):353–359, 2013. doi: 10.1016/j.measurement.2012.07.007.
[16] L. Beranek. Noise and Vibration Control. McGraw-Hill Book Company, New York, 1971.
[17] Y.P. Singh, J.H. Ball, K.E. Rouch, and P.N. Sheth. A finite elements approach for analysis and design of pumps. Finite Elements in Analysis and Design, 6(1):45–58, 1989. doi: 10.1016/0168-874X(89)90034-6.
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Authors and Affiliations

Nidal H. Abu-Hamdeh
1

  1. King Abdulaziz University, Jeddah, Saudi Arabia.

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