Quantitative evaluation of flow-induced structural vibration and noise in turbomachinery by full-scale weakly coupled simulation

Jiang, Yu; Yoshimura, Shinobu; Imai, Ryuta; Katsura, Hosho; Yoshida, Tomoya; Kato, Chisachi

doi:10.1016/j.jfluidstructs.2006.10.003

Cited by 92 publications

(63 citation statements)

References 15 publications

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“…16 Analysis of variance is applied to reflect the effect of each parameter on pump vibration. In this method, F ratio represents the test statistics, p is the test value, and F crit is the critical value with reference a.…”

Section: Vibration Intensitymentioning

confidence: 99%

Experimental test on impeller clocking effect in a multistage centrifugal pump

Tan

Liu

et al. 2016

Advances in Mechanical Engineering

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In this article, the effects of clocking effect on performance and vibration intensity of a five-stage centrifugal pump were investigated by experimental tests. The vibration characteristics of five positions in the pump were measured, including axial direction of the pump and horizontal and vertical directions of pump inlet and outlet. There are eight clocking schemes between the impellers in the test, which are arranged by orthogonal experimental design. The test results show that the clocking effect of impellers has little effect on the head and efficiency of the five-stage pump in the whole flow rate. Compared with the results of 0°stagger angle clocking scheme between each impeller, in the whole flow rate, the pulsation of pump head and efficiency is just 1.5% and 1.3%, respectively, under other clocking schemes of impellers. Instead, the impeller clocking has a significant effect on the vibration characteristics of the model pump. The maximum vibration intensity of the five-stage pump locates in the vertical direction of pump inlet within the whole flow rate. Under the best clocking scheme of impellers, the maximum vibration intensity of the pump can decrease by 23.1% and the mean vibration intensity can decrease by 17.3%.

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Section: Vibration Intensitymentioning

confidence: 99%

Experimental test on impeller clocking effect in a multistage centrifugal pump

Tan

Liu

et al. 2016

Advances in Mechanical Engineering

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“…The detection of noise radiation from the two dimensional model of centrifugal pump was analyzed by Langthjem et al [5] using Lighthill acoustic analogy and concludes that there was a good agreement between numerical and experimental readings. Jiang et al [6] studied the feasible method to couple fluid structure interaction with flow induced noise in turbomachines using Large Eddy Simulation (LES) based CFD and FEM. The efficiency of noise radiation from a centrifugal pump for different blades shapes was determined by Huang [7] using numerical simulation hybrid with Ffowcs WilliamsHawkings (FW-H) acoustic model.…”

Section: Introductionmentioning

confidence: 99%

Study of Flow Induced Noise in Vertical Inline Pump Using Lighthill Analogy

Stephen

Yuan

Pei

et al. 2018

MATEC Web of Conferences

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Abstract. The pump user demands for specification along with noise and vibration magnitude for extreme operating conditions apart from best efficiency flow. In order to predict the noise level in pumps, the entire unit of pump has to be considered for acoustic evaluation. Hence, the full three dimensional model of vertical inline pump which consists of inlet pipe, impeller, and volute casing is considered for detailing the flow induced noise using Lighthill analogy. The performance characteristics of pump are well matched between experimental and computational results and the overall sound power level at best efficiency flow using computation was compared with empirical relations and found to be agreed well. The streamline patterns along the inlet pipe shows the effects of recirculation and return flow at partload condition and confirm that the utilization of flow passage is not well streamlined even for nominal flow rate. Further, the detailed study of inlet pipe cross sections reveals the nature of different noise sources such as dipole and quadrupole sound levels along with Proudman source power level. The intensity of turbulence and vortices in flow passage is predicted well using quadrupole source and Proudman sound power levels.

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“…Y.Y. Jiang et al [2] reports on reports on a full-scale structural simulation of flow-induced mechanical vibrations and noise in a 5-stage centrifugal pump. They clarified the mechanisms of the resonant vibration and the noise generation and propagation, which can then be used for noise reduction.…”

Section: Introductionmentioning

confidence: 99%

Influence of Parameters on vibrations for Centrifugal Pump Based on the Modal Dynamics Method

Nan

Zhang²

2015

Proceedings of the 2015 International Conference on Applied Science and Engineering Innovation

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Abstract. The influence of the parameters on the vibrations for a centrifugal pump is investigated under the consideration of the fluid excitation force in this paper. The responses of the centrifugal pump during the operation were mostly generated by the fluid excitation force. It is difficult to simulate accurately and make prediction of this coupling vibration in a rigorous analytical method. The finite element model was established in this article with consideration of the effect of the fluid excitation. Based on the modal dynamics method, the analysis is carried out to study on the effect of the parameters such as the flow rate, the blade number, the exit installation angle and the outside diameter of impeller on the frequency-response curves. The results show that there exists an optimal blade number value for a better effect of vibration reduction; the design of the outside diameter should consider the response to get a better damping. The research work is meaningful for the parametric designation and the safe check for the centrifugal pumps.

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Quantitative evaluation of flow-induced structural vibration and noise in turbomachinery by full-scale weakly coupled simulation

Cited by 92 publications

References 15 publications

Experimental test on impeller clocking effect in a multistage centrifugal pump

Experimental test on impeller clocking effect in a multistage centrifugal pump

Study of Flow Induced Noise in Vertical Inline Pump Using Lighthill Analogy

Influence of Parameters on vibrations for Centrifugal Pump Based on the Modal Dynamics Method

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