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考虑动态刚度的电磁阻尼器-轴承-转子减振研究

肖玲 周游 赵晨曦 郑善栋 程文杰 冯圣

肖玲, 周游, 赵晨曦, 郑善栋, 程文杰, 冯圣. 考虑动态刚度的电磁阻尼器-轴承-转子减振研究[J]. 西南交通大学学报, 2023, 58(4): 957-964. doi: 10.3969/j.issn.0258-2724.20230065
引用本文: 肖玲, 周游, 赵晨曦, 郑善栋, 程文杰, 冯圣. 考虑动态刚度的电磁阻尼器-轴承-转子减振研究[J]. 西南交通大学学报, 2023, 58(4): 957-964. doi: 10.3969/j.issn.0258-2724.20230065
XIAO Ling, ZHOU You, ZHAO Chenxi, ZHENG Shandong, CHENG Wenjie, FENG Sheng. Vibration Reduction of Bearing-Rotor with Electromagnetic Damper Considering Dynamic Stiffness[J]. Journal of Southwest Jiaotong University, 2023, 58(4): 957-964. doi: 10.3969/j.issn.0258-2724.20230065
Citation: XIAO Ling, ZHOU You, ZHAO Chenxi, ZHENG Shandong, CHENG Wenjie, FENG Sheng. Vibration Reduction of Bearing-Rotor with Electromagnetic Damper Considering Dynamic Stiffness[J]. Journal of Southwest Jiaotong University, 2023, 58(4): 957-964. doi: 10.3969/j.issn.0258-2724.20230065

考虑动态刚度的电磁阻尼器-轴承-转子减振研究

doi: 10.3969/j.issn.0258-2724.20230065
基金项目: 国家自然科学基金(52275271);陕西省自然科学基金(2022JM-194)
详细信息
    作者简介:

    肖玲(1983—) ,女,教授,博士,研究方向为电磁轴承、高速电机转子、软磁复合材料,E-mail:xiaoling@xust.edu.cn

  • 中图分类号: TH133.3

Vibration Reduction of Bearing-Rotor with Electromagnetic Damper Considering Dynamic Stiffness

  • 摘要:

    为了有效抑制转子系统的不平衡振动,本文提出将考虑动态刚度的电磁阻尼器应用于转子系统中. 首先,建立转子系统运动方程并对其进行无量纲化;其次,基于等效磁路法,建立了考虑涡流效应的电磁阻尼器模型,分析了涡流效应对电磁阻尼器刚度的影响,并采用非线性动态自适应惯性权重的PSO算法对电磁阻尼器的PID (比例、积分、微分)3个控制参数进行优化;最后,对转子的动力学特性进行了分析. 研究结果表明:在涡流效应的影响下,电磁阻尼器的刚度是动态变化的,当转速为100 kHz时,理论上位移刚度和电流刚度分别下降了10.0%、6.6%;通过非线性动态自适应惯性权重的PSO算法优化得到的PID参数响应快,超调量小,能够在0.1 s内迅速地将圆盘的偏离量调至0,具有良好的控制效果;相比于静态刚度,考虑动态刚度后,圆盘的振幅有所增大,当转速为4782 Hz时,圆盘的振幅增大了5.33%;偏心距增大会导致圆盘的振幅增大,当转速超过242 Hz时,圆盘振幅增大的幅度与圆盘偏心距增大的幅度几乎成正比.

     

  • 图 1  带电磁阻尼器的电磁轴承-转子系统的模型

    Figure 1.  Model of electromagnetic bearing-rotor system with electromagnetic damper

    图 2  电磁阻尼器结构示意

    Figure 2.  Structure of electromagnetic damper

    图 3  等效磁路模型

    Figure 3.  Equivalent magnetic circuit model

    图 4  动态刚度频率响应

    Figure 4.  Frequency response of dynamic stiffness

    图 5  粒子群算法优化PID参数

    Figure 5.  PSO for PID parameters

    图 6  圆盘响应曲线

    Figure 6.  Response curve of disk

    图 7  两种刚度下无量纲振幅的变化曲线

    Figure 7.  Variation curves of dimensionless amplitude under two kinds of stiffness

    图 8  无量纲振幅相对误差曲线

    Figure 8.  Relative error curve of dimensionless amplitude

    图 9  两种刚度下圆盘的时域图(Ω=70.0)

    Figure 9.  Time domain of disk under two kinds of stiffness (Ω=70.0)

    图 10  两种刚度下圆盘的轴心轨迹图(Ω=70.0)

    Figure 10.  Axis center track of disk under two kinds of stiffness (Ω = 70.0)

    图 11  两种刚度下圆盘的时域图(Ω=71.0)

    Figure 11.  Time domain of disk under two kinds of stiffness (Ω = 71.0)

    图 12  两种刚度下圆盘的轴心轨迹图(Ω=71.0)

    Figure 12.  Axis center track of disk under two kinds of stiffness (Ω = 71.0)

    图 13  不同偏心距时无量纲振幅的变化曲线

    Figure 13.  Variation curve of dimensionless amplitude with different eccentricity

    图 14  无量纲振幅的比值

    Figure 14.  Ratio of dimensionless amplitude

    表  1  电磁阻尼器结构参数

    Table  1.   Structure parameters for electromagnetic damper

    结构参数取值
    圆盘直径 D/mm150
    转子直径 d/mm35
    阻尼器外径 D0/mm340.6
    阻尼器内径 D2/mm153.0
    定子厚度 b/mm50
    磁极面积 A/mm21500
    线圈匝数 N/匝280
    静态电流 I0/A2.3
    磁极角 α/(°)22.5
    气隙长度 C1/mm1.5
    下载: 导出CSV

    表  2  仿真参数

    Table  2.   Parameters of simulation

    系统参数取值
    圆盘质量 m1/kg6.39
    轴颈质量 m2/kg2.15
    转轴刚度 k/(N·m−1)106
    初始相位角 φ/(°)45
    原始偏心距 e0/mm0.5
    固有频率 ωn/(rad·s−1)305
    电磁轴承气隙长度 C2/mm0.4
    电磁轴承位移刚度 K2/(N·m−1)3.657 × 105
    电磁轴承电流刚度 G2/(N·A−1)73.14
    比例增益 kP2/(A·m−1)5500
    积分增益 kI2/(A·(m·s)−1)8000
    微分增益 kD2/(A·s·m−1)3
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-03-01
  • 修回日期:  2023-06-08
  • 网络出版日期:  2023-07-01
  • 刊出日期:  2023-06-15

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