摘要
为了实现板式电涡流阻尼器的精确、高效和优化设计,首先以某一电涡流调谐质量阻尼器为计算模型,验证了采用三维电磁场有限元稳态分析方法计算板式电涡流阻尼器阻尼系数的准确性。利用三维磁场有限元稳态分析法,分析了板式电涡流阻尼器的各设计参数对阻尼比的影响。结果表明,三维磁场有限元稳态分析方法能够准确计算板式电涡流阻尼器的阻尼系数;导体板厚度、导磁钢板厚度、永磁体间距、空气间隙和永磁体的排列方式对板式电涡流阻尼器的阻尼性能影响显著,在设计中应综合考虑。
To achieve the precise,effective and optimal design of a planar eddy current damper,an eddy current TMD was selected as the calculation model,and the accuracy of the 3D static electromagnetic finite element analysis method in calculating the damping ratio of the planar eddy current damper was verified. Then the effect of each design parameter on the damping ratio was analyzed. The results show that the 3D static electromagnetic finite element analysis method is accurate enough to calculate the damping ratio of the planar eddy current damper. Some parameters have great effects on the damping capacity of the planar eddy current damper,such as the thickness of conductive plates,the thickness of steel plates,the distance between magnets,the distance between magnets and conductive plates and the orientation of magnets. These parameters should be fully considered in the design.
出处
《振动与冲击》
EI
CSCD
北大核心
2016年第18期123-127,共5页
Journal of Vibration and Shock
基金
基金项目:重大建筑与桥梁强/台风灾变的集成研究(91215302)
关键词
电涡流阻尼
电磁场
参数分析
有限元方法
永磁体
eddy current damping
electromagnetic field
parameter analysis
finite element method（FEM）
permanent magnets
