Fluid-induced vibration analysis of centrifugal pump including rotor system based on Computational Fluid Dynamics and Computational Structural Dynamics coupling approach

Zhou, Jialiang; Jin, Guoyong; Ye, Tiangui; Wang, Xueren

doi:10.1016/j.oceaneng.2023.115993

Ocean Engineering

2023

DOI: 10.1016/j.oceaneng.2023.115993

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Fluid-induced vibration analysis of centrifugal pump including rotor system based on Computational Fluid Dynamics and Computational Structural Dynamics coupling approach

Jialiang Zhou,

Guoyong Jin,

Tiangui Ye

et al.

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2024

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Cited by 5 publications

References 38 publications

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Experimental investigation of non-synchronous vibration and its mechanism analysis by using a cantilever beam-like compressor cascade

Tan,

Gao,

et al. 2024

Aerospace Science and Technology

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Experimental investigation of non-synchronous vibration and its mechanism analysis by using a cantilever beam-like compressor cascade

Tan,

Gao,

et al. 2024

Aerospace Science and Technology

View full text Add to dashboard Cite

Flow-induced vibration of turbo-expander impellers for industrial waste heat recovery: An analysis based on two-way fluid structure interaction

Tong,

He,

Tong

et al. 2024

Sustainable Energy Technologies and Assessments

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Insight into blade tip vibration and deformation characteristics of boiler circulation pumps induced by tip leakage vortex under different tip clearances

Lv,

Guo,

Zhao

et al. 2024

Physics of Fluids

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For circulating pumps in large power plant boilers, tip leakage flow is the main cause of blade fatigue. To investigate the correlation between tip leakage vortex and blade fatigue, in this paper, the bidirectional fluid structure coupling method is used to simulate the full flow field of the boiler circulating pump under different tip clearance sizes. The accuracy of the delayed detached vortex simulation method is verified by combining the external characteristics and vibration characteristics of the pump. It is obtained that tip leakage vortex is the main cause of blade tip vibration and deformation. Under deep stall conditions, the increase in tip clearance size suppresses the vibration displacement of the blade leading edge, while the opposite is true under optimal conditions. After decomposing tip leakage vortex, it is found that the compression–expansion term played a major role in the deformation of the blade tip, while the viscous dissipation term and the stretching term mainly affected the vibration frequency. At optimal working conditions, the main frequency of blade vibration is basically consistent with the main frequency of vortex generation. In deep stall condition, as the tip clearance size increases, the amplitude of the vibration main frequency decreases and the number of harmonic frequencies decreases, while the optimal condition is the opposite.

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Fluid-induced vibration analysis of centrifugal pump including rotor system based on Computational Fluid Dynamics and Computational Structural Dynamics coupling approach

Cited by 5 publications

References 38 publications

Experimental investigation of non-synchronous vibration and its mechanism analysis by using a cantilever beam-like compressor cascade

Experimental investigation of non-synchronous vibration and its mechanism analysis by using a cantilever beam-like compressor cascade

Flow-induced vibration of turbo-expander impellers for industrial waste heat recovery: An analysis based on two-way fluid structure interaction

Insight into blade tip vibration and deformation characteristics of boiler circulation pumps induced by tip leakage vortex under different tip clearances

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