摘要
将磁轴承支承在磁流变液阻尼器上,可通过控制磁流变液流变来改善磁轴承系统对振动的抑制。为了得到更好的减振效果,提升磁流变液阻尼器的性能,有必要对磁流变液阻尼器的结构参数进行优化设计。在磁场有限元分析的基础上,以径向垂直通过磁流变液的最大磁通密度为优化目标,利用多目标遗传算法,对磁流变液阻尼器结构参数进行了优化设计并解决了磁流变液阻尼器和磁悬浮轴承磁场的耦合问题。优化后阻尼器两端磁流变液上的磁通密度得到了较大提高,阻尼力获得了更大的可调范围,这为磁流变液阻尼器设计提供了参考依据。
By supporting magnetic bearings on the MR damper, we can control rheological behavior of magneto-rheological fluid to suppress vibration of the magnetic bearing system. In order to get better effect of vibration reduction and improve the MR dampers performance, optimum design is necessary for structure parameters of MRF dampers. Based on finite element analysis of magnetic field, taking the maximum radial magnetic field strength applied to magneto-rheological flluid as objective fimctions, utilizing of multi-objective genetic algorithm （MOGA）, the optimum design of MRF damper was completed and the magnetic field coupling problem of MRF damper and magnetic bearings was solved. After optimization, the magnetic field strength of both ends of MR damper increases and resultantly variable range of damping force is improved, providing reference for design on MR damper.
出处
《磁性材料及器件》
北大核心
2013年第2期21-25,28,共6页
Journal of Magnetic Materials and Devices
基金
国家自然科学基金资助项目(51075200)
江苏省自然科学基金资助项目(BK2011070)
南京航空航天大学基本科研业务费资助项目(NZ2012203)
