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Design and performance analysis of two types of MR dampers with full-length effective damping path
Author(s): 
Pages: 565-570
Year: Issue:  6
Journal: Journal of Vibration Engineering

Keyword:  磁流变阻尼器全通道有效永磁体引磁套环Binglaam模型;
Abstract: 传统磁流变(MR)阻尼器活塞需缠绕励磁线圈,因此阻尼通道1/2以上长度为无效长度,影响阻尼器的最大出力.针对上述问题,提出了两种磁路结构改进方案,根据改进的磁路结构,结合磁场有限元分析,完成了两种阻尼器的结构设计和磁路设计,并采用Binglaam平板模型对两种阻尼器出力状况进行预估,得到了阻尼器工作状态下的力-速度曲线,并比较了其性能.结果表明:改进的磁路结构切实可行,两种阻尼器与同尺寸传统MR阻尼器相比,提高了阻尼通道的有效长度,较好地实现了全通道有效,最大出力提高一倍以上;方案-阻尼器的阻尼力可调范围较大,方案二阻尼器在最大出力、防沉降性能和故障安全性能方面更具优势.
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