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第二动力系统建模及性能分析

袁昌坤 刘娇 刘火星 周志鸿

袁昌坤, 刘娇, 刘火星, 等. 第二动力系统建模及性能分析[J]. 航空动力学报, 2024, 39(10):20220197 doi: 10.13224/j.cnki.jasp.20220197
引用本文: 袁昌坤, 刘娇, 刘火星, 等. 第二动力系统建模及性能分析[J]. 航空动力学报, 2024, 39(10):20220197 doi: 10.13224/j.cnki.jasp.20220197
YUAN Changkun, LIU Jiao, LIU Huoxing, et al. Second power system modeling and performance analysis[J]. Journal of Aerospace Power, 2024, 39(10):20220197 doi: 10.13224/j.cnki.jasp.20220197
Citation: YUAN Changkun, LIU Jiao, LIU Huoxing, et al. Second power system modeling and performance analysis[J]. Journal of Aerospace Power, 2024, 39(10):20220197 doi: 10.13224/j.cnki.jasp.20220197

第二动力系统建模及性能分析

doi: 10.13224/j.cnki.jasp.20220197
详细信息
    作者简介:

    袁昌坤(1998-),男,助理工程师,硕士,研究方向为第二动力系统建模仿真

    通讯作者:

    周志鸿(1991-),男,助理研究员,博士,研究方向为航空发动机涡轮气动设计及测试技术。E-mail:zhouzhihong@buaa.edu.cn

  • 中图分类号: V23

Second power system modeling and performance analysis

  • 摘要:

    为分析飞机第二动力系统的整体工作特性,采用部件级建模方法和多种群遗传算法对包含辅助动力装置(APU)、引气管路和空气涡轮起动机(ATS)在内的第二动力系统进行稳态建模。利用参考数据对比验证了仿真模型的可靠性,仿真结果误差小于3.5%。仿真计算得到引气管路的损失特性和APU、ATS的工作特性,针对整体系统开展仿真分析得到系统的温度特性、高度-速度特性、负载特性,结果表明引气管路的效率会随引气参数发生显著变化,第二动力系统各部件工作存在耦合关系,系统的当量功率等总体性能参数随高度增加而衰减,系统效率随飞行速度的增加而下降,研究结论为先进第二动力系统设计提供参考。

     

  • 图 1  第二动力系统组成示意图

    Figure 1.  Schematic diagram of the second power system

    图 2  引气管路数值模拟示意图

    Figure 2.  Schematic diagram of numerical simulation of bleeding pipe

    图 3  多种群遗传算法示意图

    Figure 3.  Diagram of multi-island genetic algorithm

    图 4  引气管路损失特性

    Figure 4.  Loss characteristics of bleeding pipe

    图 5  ATS引气压力特性

    Figure 5.  ATS bleed air pressure characteristics

    图 6  引气流量随引气压力和温度的变化

    Figure 6.  Change of bleed air flow with bleed air pressure and temperature

    图 7  环境温度对引气压力和引气温度的影响

    Figure 7.  Influence of ambient temperature on bleeding pressure and temperature

    图 8  APU进气总压恢复系数对引气压力和温度的影响

    Figure 8.  Influence of APU inlet total pressure recovery coefficient on bleeding pressure and temperature

    图 9  APU排气总压恢复系数对引气压力和温度的影响

    Figure 9.  Influence of APU outlet total pressure recovery coefficient on bleeding pressure and temperature

    图 10  高度-速度特性

    Figure 10.  Altitude-speed characteristic

    图 11  系统效率随飞行高度-速度的变化

    Figure 11.  System efficiency varies with flight altitude-speed

    图 12  某高度下ATS工作点

    Figure 12.  ATS operating point at a certain altitude

    图 13  负载特性

    Figure 13.  Load characteristic

    表  1  引气管路模型仿真校验

    Table  1.   Bleed air pipeline model simulation and verification

    工况数值结果模型结果误差/%
    10.99500.99370.13
    20.99490.99360.13
    30.99480.99360.12
    下载: 导出CSV

    表  2  仿真结果验证(1)

    Table  2.   Verification of simulation results (1)

    工况 参数 参考值 仿真值 误差/%
    1 负载压气机功率/kW 209.0 210.2 0.6
    动力压气机功率/kW 620.0 616.8 0.5
    引气压力/kPa 313.0 311 0.6
    引气温度/K 458.0 455.8 0.5
    ATS流量/(kg/s) 1.038 1.035 0.3
    ATS功率/kW 90.0 89.9 0.1
    2 引气压力/kPa 299.0 300.1 0.4
    引气温度/K 473.0 468.4 1.0
    ATS流量/(kg/s) 0.970 0.984 1.4
    ATS功率/kW 84.0 84.91 1.1
    3 引气压力/kPa 339.0 335 1.2
    引气温度/K 435.0 419.91 3.5
    ATS流量/(kg/s) 1.14 1.15 0.9
    ATS功率/kW 98.0 100.0 2.0
    下载: 导出CSV

    表  3  仿真结果验证(2)

    Table  3.   Verification of simulation results (2)

    工况 参数 参考值 仿真值 误差/%
    1 涡轮前温度 1.000 1.015 1.5
    排气温度 1.000 1.002 0.2
    引气压力 1.000 1.023 2.2
    引气温度 1.000 1.033 3.2
    2 涡轮前温度 0.996 1.009 1.3
    排气温度 0.992 0.995 0.2
    引气压力 0.906 0.919 1.5
    引气温度 0.988 1.0184 3.0
    3 涡轮前温度 0.992 1.001 0.9
    排气温度 0.986 0.984 0.2
    引气压力 0.819 0.825 0.8
    引气温度 0.973 1.0082 3.4
    下载: 导出CSV
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  • 收稿日期:  2022-04-09

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