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变转速动力涡轮转子模拟系统设计及试验

张羽薇 王四季 张晋琪 王虎 廖明夫

张羽薇, 王四季, 张晋琪, 等. 变转速动力涡轮转子模拟系统设计及试验[J]. 航空动力学报, 2024, 39(X):20230194 doi: 10.13224/j.cnki.jasp.20230194
引用本文: 张羽薇, 王四季, 张晋琪, 等. 变转速动力涡轮转子模拟系统设计及试验[J]. 航空动力学报, 2024, 39(X):20230194 doi: 10.13224/j.cnki.jasp.20230194
ZHANG Yuwe, WANG Siji, ZHANG Jinqi, et al. Design and experiment of variable speed power turbine rotor simulation system[J]. Journal of Aerospace Power, 2024, 39(X):20230194 doi: 10.13224/j.cnki.jasp.20230194
Citation: ZHANG Yuwe, WANG Siji, ZHANG Jinqi, et al. Design and experiment of variable speed power turbine rotor simulation system[J]. Journal of Aerospace Power, 2024, 39(X):20230194 doi: 10.13224/j.cnki.jasp.20230194

变转速动力涡轮转子模拟系统设计及试验

doi: 10.13224/j.cnki.jasp.20230194
详细信息
    作者简介:

    张羽薇(1996-),女,博士生,主要从事转子动力学研究

    通讯作者:

    王四季(1981-),男,副教授、博士生导师,博士,主要从事发动机转子动力学、转子振动主动控制研究。E-mail:sjwang@nwpu.edu.cn

  • 中图分类号: V231.92

Design and experiment of variable speed power turbine rotor simulation system

  • 摘要:

    针对变转速涡轮转子工况复杂、振动突出的问题,建立变转速动力涡轮转子支承布局和挤压油膜阻尼器优化设计技术。基于结构相近、动力学相似的理论,设计搭建了模拟某型发动机的转子试验系统,实现对优化设计方案下的临界转速分布、振型模态与转子振动响应特性验证。开展了阻尼器结构参数的减振特性分析,为变转速动力涡轮转子的挤压油膜阻尼器设计提供支撑。研究结果表明:转子试验系统临界转速计算最大误差为5%,模态振型最大误差为7%,验证了动力学特性计算方法的准确性。通过进行转子支承结构和阻尼器优化,转子振动幅值下降67.3%,变转速工作范围内运行更平稳,验证了所提出的变转速动力涡轮转子减振方案的有效性,为变转速涡轴发动机动力涡轮转子动力学方案和减振设计提供参考。

     

  • 图 1  某型发动机变转速动力涡轮转子结构

    Figure 1.  Structure of variable speed power turbine rotor for a certain engine

    图 2  变转速动力涡轮转子试验系统总体方案

    Figure 2.  Overall scheme of variable speed power turbine rotor experimental system

    图 3  1支点结构

    Figure 3.  Structure of the first fulcrum

    图 4  2支点结构

    Figure 4.  Structure of the second fulcrum

    图 5  5支点结构

    Figure 5.  Structure of the fifth fulcrum

    图 6  6支点结构

    Figure 6.  Structure of the sixth fulcrum

    图 7  辅板式支座

    Figure 7.  Auxiliary plate support

    图 8  动力输出轴系结构

    Figure 8.  Power output shafting structure

    图 9  动力涡轮主轴系

    Figure 9.  Power turbine main shaft system

    图 10  止口配合面选择

    Figure 10.  Selection of joint fitting surface

    图 11  转子油路

    Figure 11.  Rotor oil circuits

    图 12  转子试验器系统

    Figure 12.  Rotor experimental system

    图 13  转子试验系统传感器布置

    Figure 13.  Sensors arrangement of rotor experimental system

    图 14  实测振型与计算振型对比图

    Figure 14.  Comparison between measured and calculated vibration modes

    图 15  关闭阻尼器转子振动情况(方案1)

    Figure 15.  Vibration of rotor with damper close (Scheme Ⅰ)

    图 16  关闭阻尼器转子振动情况(方案2)

    Figure 16.  Vibration of rotor with damper close (Scheme Ⅱ)

    图 17  SFD结构参数的影响(方案1)

    Figure 17.  Impact of SFD structural parameters (Scheme Ⅰ)

    图 18  SFD结构参数的影响(方案2)

    Figure 18.  Impact of SFD structural parameters (Scheme Ⅱ)

    图 19  打开阻尼器转子振动情况(方案1)

    Figure 19.  Vibration of rotor with dampers open (Scheme Ⅰ)

    图 20  打开阻尼器转子振动情况-方案2

    Figure 20.  Vibration of rotor with all dampers open-Scheme Ⅱ

    图 21  全转速运行试验结果(方案1)

    Figure 21.  Full-speed operation experimental results (Scheme Ⅰ )

    图 22  全转速运行试验结果(方案2)

    Figure 22.  Full-speed operation experimental results (Scheme Ⅱ)

    图 23  方案1与方案2试验结果对比

    Figure 23.  Comparison of experimental results between Scheme Ⅰ and Scheme Ⅱ

    表  1  转子试验系统测量通道信息

    Table  1.   Rotor experimental system measurement channel informations

    传感器类型 测量单位 编号 通道信息
    位移传感器 μm CH1 轴1位置水平测量传感器
    CH2 轴1位置竖直测量传感器
    CH3 轴2位置水平测量传感器
    CH4 轴2位置竖直测量传感器
    CH5 轴3位置水平测量传感器
    CH6 轴3位置竖直测量传感器
    CH7 1级盘水平测量传感器
    CH8 1级盘测竖直量传感器
    下载: 导出CSV

    表  2  试验转子系统临界转速计算值与实际测量值对照

    Table  2.   Calculated and measured critical speed values of experimental rotor system

    方案 1阶临界转速/(r/min) 误差/% 2阶临界转速/(r/min) 误差/%
    理论值 实测值 理论值 实测值
    1 2938 2800 4.8 5105 5100 <0.1
    2 2699 2650 1.7 4048 4050 <0.1
    下载: 导出CSV

    表  3  挤压油膜阻尼器设计参数

    Table  3.   Design parameters of squeeze film damper

    参数 方案1 方案2
    2支点 5支点 2支点 5支点
    油膜半径/
    mm
    28.1 36.8 28.1 36.8
    油膜长度/
    mm
    10 20 10 20
    滑油黏度/
    (Pa·s)
    0.004817 0.004817 0.004817 0.004817
    油膜间隙/
    mm
    0.18 0.08 0.18 0.12
    下载: 导出CSV
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  • 收稿日期:  2023-03-28
  • 网络出版日期:  2024-03-27

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