工程设计学报2025，Vol.32Issue(3)：373-382,10.DOI:10.3785/j.issn.1006-754X.2025.04.167
基于响应面法的高压共轨式超磁致伸缩喷油器响应时间优化
Response time optimization of high-pressure common rail giant magnetostrictive injector based on response surface method
摘要
Abstract
To improve the dynamic response characteristics of high-pressure common rail injectors,a high-pressure common rail giant magnetostrictive injector was designed based on the giant magnetostrictive material rod and the hydraulic reversing mechanism.On the basis of briefly describing the overall structure design and working principle of this injector,considering the nonlinear hysteresis characteristics of its driving part,an electro-magnetic-mechanical-hydraulic multiphysics coupling model was established based on the Jiles-Atherton hysteresis model.Then,a complete simulation model of the injector was constructed.The needle valve signal was selected as the evaluation index for fuel injection response speed,and the optimal preload force of the needle valve spring was determined.Finally,the parameters such as the control piston diameter,the control cavity volume,the oil inlet diameter and the oil outlet diameter were optimized by using the response surface method,and the influence of the optimized parameters on the response time of the injector was analyzed based on the fitting equation.The results showed that compared with before optimization,the opening delay of the needle valve after optimization was reduced by 3.251%,the opening time was reduced by 1.364%,the closing delay was reduced by 9.465%,and the closing time was reduced by 14.848%.The research indicates that the adopted optimization method can effectively improve the response speed of the needle valve,which is conducive to enhancing the small-quantity fuel injection and multiple fuel injection performance of the high-pressure common rail injector.关键词
超磁致伸缩/喷油器/Jiles-Atherton磁滞模型/响应面法/参数优化Key words
giant magnetostrictive/injector/Jiles-Atherton hysteresis model/response surface method/parameter optimization分类
能源与动力引用本文复制引用
喻曹丰,胡逸凯,段永勇,魏梓贤,王宁..基于响应面法的高压共轨式超磁致伸缩喷油器响应时间优化[J].工程设计学报,2025,32(3):373-382,10.基金项目
国家自然科学基金资助项目(52105042) （52105042）
流体动力基础件与机电系统全国重点实验室开放基金资助项目(GZK-202302) （GZK-202302）
中国博士后科学基金资助项目(2019M652159) （2019M652159）
