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采用基因表达式编程的潜水泵性能预测
引用本文:李超群,魏清顺.采用基因表达式编程的潜水泵性能预测[J].水电能源科学,2020,38(4):150-153.
作者姓名:李超群  魏清顺
作者单位:山西农业大学工学院,山西太谷030801;山西农业大学城乡建设学院,山西太谷030801
基金项目:山西省自然科学基金项目( 201601D102045);山西农业大学科技创新基金项目(2018YJ41)
摘    要:常规试验法和计算流体动力学(CFD)技术在研究水泵性能时都较为耗费资力。为了提高水泵性能及节约成本,以深井潜水泵为研究对象,在证明CFD仿真技术可靠的前提下,在同一水泵叶轮上装配了22种不同结构的导叶,通过模拟试验获得有效数据结果。将仿真结果分为训练样本和验证样本,选取水泵扬程和效率2项指标,使用基因表达式编程(GEP)算法训练样本构建预测模型。结果表明,GEP算法从大集合中进化得到最优模型,很好地描述了结构变量与性能之间的相关关系;构建的预测函数准确地预测出水泵扬程和效率两个性能指标,并可靠地反映出各参数影响程度。

关 键 词:基因表达式编程  CFD仿真技术  潜水泵  导叶  性能预测

Submersible Pump Performance Prediction Using Gene Expression Programming
LI Chao-qun,WEI Qing-shun.Submersible Pump Performance Prediction Using Gene Expression Programming[J].International Journal Hydroelectric Energy,2020,38(4):150-153.
Authors:LI Chao-qun  WEI Qing-shun
Affiliation:(College of Engineering,Shanxi Agricultural University,Taigu 030801,China;College of Urban and Rural Construction,Shanxi Agricultural University,Taigu 030801,China)
Abstract:Conventional test method and computational fluid dynamics(CFD)technology are relatively expensive in the study of pump performance.In order to improve the performance of the pump and save costs,the submersible pump was taken as the research object.On the premise that the CFD simulation technology is reliable,22 kinds of vanes with different structures are installed on the same pump impeller.The effective data results are obtained by simulation test.The results are divided into training samples and verification samples.Therefore,the gene expression programming(GEP)algorithm was used to train samples to construct prediction models by choosing pump lift and efficiency as indexes.The results show that the GEP algorithm evolves from the large set to obtain the optimal model,which describes the correlation between structural variables and performance;The prediction function can accurately predict the two performance indexes of pump lift and efficiency,and reliably reflect the influence degree of each parameter.
Keywords:gene expression programming  CFD simulation technology  submersible pump  vane  performance prediction
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