Transfer Matrices of Single Volute Centrifugal Pumps

Carta, Fabrice; Charley, Jacques; Caignaert, Guy

doi:10.20855/ijav.2000.5.462

Cited by 1 publication

(2 citation statements)

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“…Equation (3) suggests that two independent sets of oscillation modes are required in order to determine the four elements of the transfer matrix (Brennen & Acosta, 1976;Carta et al, 2000;Rubin, 2004;Stirnemann et al, 1987). Therefore, two exciters (upstream and downstream exciters) are installed (Fig.…”

Section: Journal Of Hydraulic Researchmentioning

confidence: 99%

“…They also developed the electrical network model for the dynamic behaviour of pumps by the extracted parameters from the transfer matrix. Carta, Charley, & Caignaert (2000) examined the transfer matrices of single volute centrifugal pumps from 20 Hz up to 150 Hz and found that the transfer matrix is not largely affected by the operating conditions. In the case of hydraulic turbines, Jacob, Prénat, & Maria (1988) and Jacob & Prénat (1991) proposed the transfer matrix method for the evaluation of the dynamic transmission characteristics of hydraulic machines.…”

Section: Introductionmentioning

confidence: 99%

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Experimental method for the evaluation of the dynamic transfer matrix using pressure transducers

Yamamoto

Müller

Ashida

et al. 2015

Journal of Hydraulic Research

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This paper introduces an experimental method for the evaluation of dynamic transfer matrices using only pressure transducers. The discharge fluctuations are evaluated from the fluctuation of the pressure difference at different streamwise locations. The transfer matrices of the resistance, the inertance and the compliance elements are determined by using simple flow configurations. This method is then validated by comparing the transfer matrix components to theoretical values. The results show that the direct measurement of the transfer matrices produces good results below the first structural eigenfrequency of the system. Furthermore, a deviation from the mass continuity in the amplitude ratio of the fluctuating upstream and downstream discharges is investigated. This behaviour can be explained with a simple model taking into account the compliance in the system.

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Section: Journal Of Hydraulic Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%