Low eddy loss axial hybrid magnetic bearing with gimballing control ability for momentum flywheel
Low eddy loss axial hybrid magnetic bearing with gimballing control ability for momentum flywheel
复制标题
具有动量飞轮万向控制能力的低涡损轴向混合磁轴承
DOI：
10.1016/j.jmmm.2012.10.006
复制
发表时间：
2013-03
影响因子：
2.7
通讯作者：
Ge, Shuzhi Sam
中科院分区：
文献类型：
--
作者：
Tang, Jiqiang;Sun, Jinji;Fang, Jiancheng;Ge, Shuzhi Sam
对于磁悬浮动量飞轮（MSMF），利用一对八极轴向混合磁轴承（AHMB）使自旋转子倾斜，并使转子绕径向轴旋转，产生较大的力矩，从而实现航天器的机动。为了提高主动轴向磁悬浮轴承的控制性能和万向节控制能力，对磁悬浮力、角刚度和倾转力矩等特性进行了研究。这些分段的定子磁极导致推力转子板中的磁密度不均匀，并且在高速下旋转损耗大，但是我们优化了定子磁极配置，并使推力转子板由块状DT4C和层压材料形成，使推力转子板中的磁密度变化更小，更平滑。采用0.1mm厚的1J50薄膜等叠层材料，可以使DT4C的磁密变化很小，涡流损耗可以忽略不计，但卷取过程中“O”形叠层产生的应力对功率损耗有不利影响。纳米晶可以减少涡流损失，并且不受卷绕过程的影响。基于改进的8极定子和DT 4纳米晶推力转子板构成的主动轴对称磁悬浮轴承，角动量为15Nms的5自由度磁悬浮动量飞轮在5000rpm时的旋转损耗由23.4W降低到3.2W，证明了该主动轴对称磁悬浮轴承具有较低的涡流损耗，具有较好的万向节控制能力。
For a magnetically suspended momentum flywheel (MSMF), the spinning rotor can be tilted by a pair of the presented axial hybrid magnetic bearing (AHMB) with eight poles and rotates around the radial axes to generate a large torque to maneuver the spacecraft. To improve the control performance and gimballing control ability of the AHMB, characteristics such as magnetic suspension force, angular stiffness and tilting momentum are researched. These segmented stator poles cause the magnetic density in the thrust rotor plate to be uneven unavoidably and the rotational loss is large at high speed, but we optimized the stator poles configuration and caused the thrust rotor plate formed by bulk DT4C and laminated material to make the magnetic density in the thrust rotor plate change less and be smoother. Laminated material such as 1J50 film with a thickness of 0.1mm can make the variation of the magnetic density in DT4C become very small and the eddy loss of it be negligible, but the stress produced in the “O” shape stacks by reeling has a bad effect on its power loss. Nanocrystalline can reduce eddy losses and is not affected by the reeling process. Based on the AHBM consisting of the stator with eight improved poles and the presented thrust rotor plate with DT4 and nanocrystalline, the rotational loss of 5-DOF magnetically suspended momentum flywheel with angular momentum of 15Nms at 5000rpm has reduced from 23.4W to 3.2W, which proved that this AHMB has low eddy loss for the gimballing control ability.
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影响因子：
3.2
作者：
Rajagopal, KR;Sivadasan, KK
通讯作者：
Sivadasan, KK
影响因子：
2.1
作者：
T. Yoshimoto
通讯作者：
T. Yoshimoto
DOI：
10.1007/978-3-642-51724-2_2
发表时间：
1989
期刊：
--
影响因子：
--
作者：
U. Bichler;T. Eckardt
通讯作者：
U. Bichler;T. Eckardt
影响因子：
2.1
作者：
K. Hijikata;M. Takemoto;S. Ogasawara;A. Chiba;T. Fukao
通讯作者：
K. Hijikata;M. Takemoto;S. Ogasawara;A. Chiba;T. Fukao
影响因子：
2.1
作者：
L. S. Stephens;C. Knospe
通讯作者：
L. S. Stephens;C. Knospe