Collaborative improvement of efficiency and noise of bionic vane centrifugal pump based on multi-objective optimization

Liu, Houlin; Cheng, Zhiming; Ge, Zhipeng; Li, Dong; Dai, Caili

doi:10.1177/1687814021994976

Cited by 11 publications

(9 citation statements)

References 15 publications

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Section: Numerical Computationsupporting

confidence: 91%

“…The calculated values of the two sound sources within 1500 Hz are lower than the measured values. At the blade passing frequency and its octave, the calculated values of the noise are close to the measured values, which is consistent with the law obtained by Liu et al 18 The relative error increases with the increase in frequency. The primary reason for this phenomenon is that the influence of pipe resonance, motor operation, cavitation, and backflow inside the pump has not been considered in calculating field noise inside the centrifugal pump.…”

Section: Computational Model Validationsupporting

confidence: 90%

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Multi-objective optimization design in a centrifugal pump volute based on an RBF neural network and genetic algorithm

Guo

2023

Advances in Mechanical Engineering

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The hydraulic and acoustic performance of centrifugal pumps are interrelated and contradictory in hydraulic structure design. An optimization design method of a volute based on a radial basis function (RBF) neural network and genetic algorithm (GA) is proposed to solve this problem. The efficiency and total sound pressure level of the centrifugal pump are used as the optimization objectives. The diameter of the base circle, the width of the base circle, the installation angle of the volute tongue, and the height of the volute diffuser tube are used as the optimization variables. Latin hypercube sampling (LHS) is used to establish the sample space, the RBF neural network is used to build the agent model between the optimization variables and objectives, and the GA is used to multi-objective optimization. For the Pareto solution set obtained, two extremal individuals and initial individuals are selected for comparative analysis of hydraulic and acoustic performance under different working conditions. The result demonstrates that under the rated working condition, compared with the initial individual, the efficiency of the optimal individual of efficiency increases by 3.79%; the internal noise of the optimal individual of sound pressure level decreases by 5.5%, and the external noise decreases by 2.3%.

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Section: Numerical Computationsupporting

confidence: 91%

Section: Computational Model Validationsupporting

confidence: 90%

Multi-objective optimization design in a centrifugal pump volute based on an RBF neural network and genetic algorithm

Guo

2023

Advances in Mechanical Engineering

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“…2.8 | Sound-structure coupling equation [23][24][25] As a widely used acoustic software, Actran software can quickly solve acoustic problems such as radiation, scattering and sealing of sound waves, propagation in pipes, convection effect, acoustic-vibration coupling and so on. Meanwhile, Actran software has excellent robustness, accuracy and operational efficiency.…”

Section: Turbulence Kinetic Energymentioning

confidence: 99%

The influence of blade curvature radius on the internal unsteady characteristics of a centrifugal pump

Wang,

Liu,

Cao

2024

Energy Science & Engineering

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To study the influence of the blade curvature radius on the flow‐induced vibration and noise of the centrifugal pump, the internal sound field of the IS 80‐65‐160 centrifugal pump was numerically calculated by adjusting the blade wrap angles to change the blade curvature radius. The RNG (Reynolds Time Average Simulation) turbulence model was selected for the numerical calculation of the centrifugal pump. The numerical simulation of the whole flow channel of the centrifugal pump was carried out using Ansys Fluent software, and the external characteristic curve of the centrifugal pump was obtained. The influence of different blade wrap angles on the internal pressure, velocity and Turbulent Kinetic Energy of the centrifugal pump was obtained. On the basis of the sound–structure coupling equation, the unsteady sound field of the centrifugal pump was calculated, and the time domain and frequency domain characteristics of the pressure pulsation at each monitoring point were obtained. The calculation results showed that the dynamic and static interference between the impeller and the volute tongue mainly caused the vibration of the centrifugal pump. By appropriately increasing the blade wrap angles, the pressure pulsation in the volute fluid domain could be effectively reduced. The vibration and noise test bench of the centrifugal pump was set up to verify the test. The experimental results showed that at the double‐blade frequency, the variation trend of the experimental value and the simulated value of the outflow flow‐induced noise of the centrifugal pump were consistent, which verified the accuracy of the sound field simulation calculation. When the blade wrap angle , it could effectively reduce the internal sound pressure level and the flow‐induced vibration and noise of the centrifugal pump. By adopting measures such as grid encryption at the position of the tongue, nonstationary calculation and comparison of different turbulence models, the accuracy of the calculation results of the internal flow field and sound field of the centrifugal pump is effectively improved, and the accuracy and reliability of the experimental results are ensured. The above research results had certain reference significance and application value for improving the working efficiency of centrifugal pumps and reducing flow‐induced vibration and noise.

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“…At present, in the research involving multi-objective optimization of centrifugal pump using response surface method, several issues still need to be addressed. Firstly, there is no error between the quantitative response surface model and real value [30,31] . Additionally, there is a lack of comparative validation regarding the calculation accuracy of different turbulence models [32] .…”

Section: Introductionmentioning

confidence: 99%

Higher-order Response Surface Method-based Optimization of Centrifugal Impeller of Combined Fuel Pump

Liu,

Zhong,

et al. 2023

Preprint

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A centrifugal-gear combined fuel pump is a new type of engine fuel pump, and the performance of the centrifugal stage is crucial for the reliable operation of the combined fuel pump. This paper presents a multi-objective optimization of the centrifugal impeller of a combined fuel pump using the higher-order response surface method and NSGA-II algorithm. First, a turbulence model used in numerical simulation is validated and established through a combination of physical test and simulation calculation. Second, the complexity of design parameters is reduced by the significance analysis of full factorial screening model, and the surrogate model of efficiency and head of centrifugal stage of combined fuel pump is constructed using Latin hypercube sampling and high-order response surface method. Finally, multi-objective optimization is performed via NSGA-II algorithm, and the optimization results are validated by numerical simulation. The research findings show that the blade angle at leading edge, blade angle at trailing edge and wrap angle determined by the significance analysis of the full factorial screening model have a significant influence on the efficiency response value and are therefore the key sensitive parameters for optimization. The surrogate model of head and efficiency constructed based on higher-order response surface method demonstrates high calculation accuracy, with sample standard deviations of 0.132 and 0.189 respectively. At the design point, the head and efficiency of the optimized centrifugal stage of the pump are increased by 2.25% and 2.54% respectively, and the internal flow becomes more even, and the adverse flow is significantly alleviated.

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Collaborative improvement of efficiency and noise of bionic vane centrifugal pump based on multi-objective optimization

Cited by 11 publications

References 15 publications

Multi-objective optimization design in a centrifugal pump volute based on an RBF neural network and genetic algorithm

Multi-objective optimization design in a centrifugal pump volute based on an RBF neural network and genetic algorithm

The influence of blade curvature radius on the internal unsteady characteristics of a centrifugal pump

Higher-order Response Surface Method-based Optimization of Centrifugal Impeller of Combined Fuel Pump

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