Mechanical property analysis of shaft tubular pump rotor with different blade angle based on fluid-structure interaction

Shen, Jiawei; Pei, Ji; Song-shan, Chen

doi:10.1088/1742-6596/2217/1/012044

Cited by 3 publications

(3 citation statements)

References 4 publications

(4 reference statements)

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“…Yuan et al [32] simulated impellers with different structures using a single fluid-structure coupling method and found that under the same flow rate, the maximum equivalent force value of the closed impeller was the highest, while the maximum equivalent stress value of the split impeller was the lowest. Shen et al [33] considered the fluid-structure coupling effect and analyzed pump rotors with different blade installation angles. They found that under the same flow rate, the axial force increases with the increase in the blade installation angle.…”

Section: Introductionmentioning

confidence: 99%

Structural Analysis and Optimization of Ultra-High-Speed Centrifugal Pump Rotor System Considering Fluid–Structure Interaction

Yan,

Ye,

Wang

et al. 2024

Water

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An ultra-high-speed centrifugal pump plays a crucial role as part of an aircraft engine’s fuel supply system. This paper focuses on the coupled vibration and optimization of a parallel double-stage ultra-high-speed centrifugal pump considering fluid–structure interaction (FSI). The accuracy of the numerical calculation is verified and compared with the experimental results. The steady and transient characteristics of the rotor system are analyzed to ensure the operational reliability of the rotor system. Moreover, an orthogonal test is conducted to explore the transient structural characteristics of the rotor system. The existing cross-support structure meets high-speed stability requirements and there is no resonance in the cantilevered rotor system. The maximum and minimum errors for the head of Pump 2 are 4% and 0.7%, respectively. The minimum values for maximum average deformation and maximum average stress are less than 0.31 mm and 245 MPa, respectively, at design conditions. The position of Bearing 1 near the multi-stage impeller has the greatest impact on the deformation and stress of the rotor system, and the deformation and stress increase as the distance increases. The results of this study can provide a valuable reference for the design of ultra-high-speed centrifugal pump rotor systems.

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Section: Introductionmentioning

confidence: 99%

Structural Analysis and Optimization of Ultra-High-Speed Centrifugal Pump Rotor System Considering Fluid–Structure Interaction

Yan,

Ye,

Wang

et al. 2024

Water

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“…The study proved that changing the size of blade tip clearance can lead to the generation of gap leakage and leakage vortices, leading to a decrease in unit performance. Additionally, Shen Jiawei [15] conducted static and modal analyses of the pump impeller under different operating conditions using Workbench. Shi Lijian [16] studied the structural mechanical properties of full-tubular flow and axial flow pumps using fluidstructure coupling and derived the corresponding stress and strain laws.…”

Section: Introductionmentioning

confidence: 99%

Study on the pulsation and fluid-structure coupling characteristics of rotating parts of vane type mixed-flow pump

Jin,

Xue,

Tang

2024

J. Phys.: Conf. Ser.

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Vane type mixed flow pumps (VTMFP) are widely used in water conservancy engineering, with a wide range of head applications. The impeller is the core component of the pump unit, and its internal flow and hydraulic excitation force affect the safe and stable operation of the unit. Aiming the pulsation characteristics inside the impeller, the VTMFP under different conditions is studied to examine the deformation and stress distribution by CFD, and the simulated results agree with the test data. The simulated results indicate that the impeller blade passing frequency consistently dominates the impeller inlet under various operating conditions. Furthermore, it is observed that the impeller rotating parts experience the highest levels of stress and deformation at low flow rate. The distribution of the equivalent force decreases from the hub to the shroud, while the deformation displacement decreases from the impeller shroud to the hub. In light of these findings, it is recommended that the design process takes into consideration the stress concentration near the blade root and the deformation at the blade edge.

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“…Some scholars also analysed the cross-flow pump's internal flow and pressure pulsation characteristics, employing pressure fluctuation data [14] and vane passage frequency [15]. Others applied fluid-solid coupling [16] and finite element methods [17] to analyse the structural vibration [18] and dynamic characteristics [19]. For the inlet and outlet horn of the pump unit, scholars have carried out an optimised design to investigate the influence of the horn tube height (H) on the uniformity of the impeller inlet flow rate and the operational stability of the pump unit [20].…”

Section: Introductionmentioning

confidence: 99%

Optimization and Internal Flow Analysis of Inlet and Outlet Horn of Integrated Pump Gate

Xie

Xuan

et al. 2022

Processes

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In order to improve the hydraulic performance of the integrated pump gate, the flow pattern of the inlet and outlet of the pump gate is improved. This paper adopts the SST k-ω turbulence model to numerically calculate the initial scheme of the integrated pump gate, verifies its internal flow pattern through experiments, then adds and optimizes the design of the inlet and outlet horn pipes of the integrated pump gate through orthogonal optimization. The research results conclude that the hydraulic performance of the integrated pump gate is significantly improved after adding the inlet and outlet horn. Under the design flow condition (Qd = 11.5 L/s), the efficiency of the pump gate increased from 60.50% to 67.19%, the head increased from 2.7569 m to 3.1178 m, the hydraulic loss in the inlet channel decreased from 0.064 m to 0.027 m, and the hydraulic loss in the outlet channel decreased from 1.337 m to 1.027 m. The optimized trumpet pipe can improve the inlet conditions of the pump while weakening the vortices in the outlet channel, thus improving the efficiency and safety of the integrated pump gate. The research results of this paper are of reference value for similar projects.

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Mechanical property analysis of shaft tubular pump rotor with different blade angle based on fluid-structure interaction

Cited by 3 publications

References 4 publications

Structural Analysis and Optimization of Ultra-High-Speed Centrifugal Pump Rotor System Considering Fluid–Structure Interaction

Structural Analysis and Optimization of Ultra-High-Speed Centrifugal Pump Rotor System Considering Fluid–Structure Interaction

Study on the pulsation and fluid-structure coupling characteristics of rotating parts of vane type mixed-flow pump

Optimization and Internal Flow Analysis of Inlet and Outlet Horn of Integrated Pump Gate

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