| 四自由度电磁轴承—转子系统的数学模型与仿真 |
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| 引用本文： | 沈钺,虞烈.四自由度电磁轴承—转子系统的数学模型与仿真[J].机床与液压,2001(4):23-24. |
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| 作者姓名： | 沈钺 虞烈 |
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| 作者单位： | 西安交通大学, |
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| 基金项目： | 国家自然科学基金资助项目(59990472) |
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| 摘 要： | 电磁轴承是一种依靠电磁力支承转子的新型无接触轴承，与传统油润滑轴承相比，具有许多优越性。但是在系统分析和建模中包括机械结构和控制系统两部分，使其数学模型复杂。本文针对四自由度电磁轴承-转子系统，讨论了磁轴承-转子运动微分方程和控制系统传递函数，建立磁轴承-转子系统的状态方程，并进行仿真。根据系统的仿真结果，考察转子轴颈的运动轨迹，评估控制算法和优化控制器参数，分析转子在高速旋转下的性能。
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| 关 键 词： | 电磁轴承－转子系统 建模 仿真 四自由度 数学模型 |
| 文章编号： | 1001-3881(2001)4-023-2 |
| 修稿时间： | 2000年11月3日 |
A mathematical model and simulation of four degree-of-freedom rotor-magnetic bearings |
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| Shen Yue.A mathematical model and simulation of four degree-of-freedom rotor-magnetic bearings[J].Machine Tool & Hydraulics,2001(4):23-24. |
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| Authors: | Shen Yue |
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| Abstract: | Magnetic bearing is a new non-contact bearing supported by electromagnetic force, which has some advantages compared to conventional bearings. Its mathematical model is complex for it is consisted of the mechanic and controlling system in the analysis of the magnetic bearings. The mathematical model of four degree-of-freedom rotor-magnetic bearings is discussed in this paper, including dynamic differential equations of rotor-magnetic bearing and state equation of control system. Simulation program is developed to analyze the rotational movement and performance of shafts in high speed. |
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| Keywords: | Rotor-magnetic bearings system Modelling and simulation Mathematical models for four degree of freedom |
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