Improvement of the accuracy of nonlinear rotordynamic models by means of the use of non-white fluid-induced signal noise

Silva, Alejandro; Zarzo, A.; Muñoz-Guijosa, Juan Manuel; Luengo, David

doi:10.1016/j.ymssp.2020.107308

Cited by 3 publications

(1 citation statement)

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“…The system reveals that the dynamic characteristics of the system will change significantly when the composite eccentricity is considered (Zhang et al, 2021). The mechanical response of the selected rotor system model to pressure fluctuation is simulated, and the model accuracy of the system under turbulence effect is improved (Silva et al, 2021). The small difference between vibration test results and fluid-solid-interaction (FSI) analysis results is confirmed, and the applicability and reliability of FSI analysis method are verified (Lee et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Centroid Trajectory Characteristics of Axial-Flow Pump Impeller Under Hydraulic Excitation

Duan

Tang

et al. 2021

Front. Energy Res.

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The hydraulic excitation characteristics of axial flow pump unit are studied through theoretical analysis, numerical simulation and field test in this paper. The correlation between impeller hydraulic and radial vibration displacement of impeller centroid is obtained through theoretical analysis. Through the 1-way fluid-solid-interaction (FSI) numerical simulation, the distributions of water pressure and displacement on the impeller surface are obtained, and the time-domain and frequency-domain characteristics of transient hydraulic and radial displacement are revealed. Through the field test, the external characteristics of axial flow pump unit and the time-frequency characteristics of the pressure pulsation at the measuring points beside the inlet of the impeller are obtained. The comparisons between simulation results and experimental results show that the former is accurate and reliable.

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Section: Introductionmentioning

confidence: 99%