【作者】 李世作；

【Author】 LI Shi-zuo (College of Electrical Engineering,Guangxi University,Nanning,Guangxi,530004)

【机构】 广西大学电气工程学院；

【摘要】 在发动机电磁气门驱动研究中,提出一种新型的电磁结构,它利用空气作阻尼,体积紧凑。应用有限元法对电磁气门驱动的磁场进行精确计算,计算不同气隙时的电磁能量,最后利用虚位移法计算电磁力。计算表明,电磁力能够满足电磁气门驱动的动力性能需求。研究结果对电磁气门驱动结构参数的优化和控制方法的研究有较好的指导意义。更多还原

【Abstract】 A new electromagnetic structure is introduced in the research of electromagnetic valve actuation (EVA) for engine;it uses air as damp and has compact volume.The magnetic field of EVA has been calculated accurately by finite element method,the electromagnetic energy of different gap can be got and the electromagnetic force can be calculated by virtual displacement method.Calculation shows that the electromagnetic force of this new structure can meet the dynamic requirements of EVA.Research result is beneficial to optimization of structure parameter and achievement of control method for EVA.更多还原