Effect of Parameters of an Electromagnetic Shunt Damper on Whirling Amplitude Reduction of a Rotor Supported by a Superconducting Magnetic Bearing
Effect of Parameters of an Electromagnetic Shunt Damper on Whirling Amplitude Reduction of a Rotor Supported by a Superconducting Magnetic Bearing
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DOI：
10.1109/tasc.2017.2653225
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发表时间：
2017-06
影响因子：
1.8
通讯作者：
Masahiko Sasaki;T. Sugiura
中科院分区：
文献类型：
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作者：
Masahiko Sasaki;T. Sugiura
超导磁轴承可以无接触地使转子悬浮。然而，转子可以以很大的幅度旋转。为了减小涡动幅度，我们重点研究了一种适用于转子系统的电磁分流阻尼器。本文分析了磁通密度分布对转子动力学的影响。从线性化和无量纲化的控制方程中，我们得到了一个决定阻尼器有效性的参数。在此基础上进行了数值计算，得到了电磁分流阻尼器尺寸的最佳值。
A superconducting magnetic bearing can levitate a rotor without contact. However, the rotor can whirl with large amplitude. To reduce the whirling amplitude, we focused on an electromagnetic shunt damper that is appliable to a rotor system. In this paper, an analysis considering influence of magnetic flux density distribution on dynamics of the rotor was carried out. From linearized and nondimensionalized governing equations, we obtained one parameter that determines the damper's effectiveness. Further, numerical calculation was performed and the optimum value concerning the dimensions of the electromagnetic shunt damper was obtained.