流体机械2025，Vol.53Issue(6)：74-81,8.DOI:10.3969/j.issn.1005-0329.2025.06.010
基于非线性回归与随机森林模型的电液比例泵容积效率计算方法
Calculation method for volumetric efficiency of electrohydraulic proportional pumps based on nonlinear regression and random forest model
摘要
Abstract
To address the problem of large errors between the calculation results of the theoretical formula for the volumetric efficiency of electrohydraulic proportional pumps and the experimental results under different working conditions,a study on the volumetric efficiency model of electrohydraulic proportional pumps based on machine learning was carried out.Firstly,a nonlinear regression model was constructed,and a significance test was performed on the regression model.Then,a prediction model for the volumetric efficiency of the electrohydraulic proportional pump was built based on the random forest model,and the prediction model was trained and verified using experimental data.Finally,the prediction accuracies of the above two models were analyzed and evaluated.The research results show that under different working conditions,compared with the theoretical calculation formula for the volumetric efficiency of the electrohydraulic proportional pump,the calculation accuracies of the volumetric efficiency of the electrohydraulic proportional pump obtained from the nonlinear regression model and the random forest prediction model are significantly improved.The average relative errors of the volumetric efficiency obtained by the two methods are reduced from 6.68%to 1.25%and 1.24%,respectively.The research results have certain guiding significance for the in-depth study of high-precision pump volumetric efficiency prediction models.关键词
容积效率/电液比例泵/回归分析/随机森林Key words
volumetric efficiency/electrohydraulic proportional pump/regression analysis/random forest分类
机械制造引用本文复制引用
习毅,姚朝阳,邹俊辉,刘宇超,郑洪涛,戴巨川,令狐钊..基于非线性回归与随机森林模型的电液比例泵容积效率计算方法[J].流体机械,2025,53(6):74-81,8.基金项目
湖南省教育厅项目(23B0496) （23B0496）
国家博士后基金项目(2023M731822) （2023M731822）
湖南省研究生科研创新项目(CX20240869) （CX20240869）
