起动机功率对发动机起动性能影响分析与优化

郑房举; 苏三买; 刘娇; 伯丽欣

doi:10.13224/j.cnki.jasp.20230028

起动机功率对发动机起动性能影响分析与优化

doi: 10.13224/j.cnki.jasp.20230028

郑房举^{1, 3},
苏三买¹,
刘娇²,
伯丽欣¹

1.
西北工业大学动力与能源学院，西安 710072
2.
中国航空工业集团有限公司沈阳飞机设计研究所，沈阳 110035
3.
中国航发控制系统研究所，江苏无锡 214063

详细信息

作者简介:
郑房举（1998-），男，硕士生，主要从事航空发动机建模与控制研究

中图分类号: V233.6
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- 文章访问数: 638
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- 被引次数: 0
出版历程
- 收稿日期: 2023-01-12
- 网络出版日期: 2024-08-01

Influence analysis and optimization of starter power characteristics on engine starting performance

1.
School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China
2.
Shenyang Aircraft Design and Research Institute，Aviation Industry Corporation of China，Limited，Shenyang 110035，China
3.
Aero Engine Control System Institute，Aero Engine Corporation of China，Wuxi Jiangsu 214063，China

摘要

摘要:
为研究起动机功率特性对航空发动机起动性能的影响，并确定发动机最佳的起动功率需求，建立了航空发动机空气涡轮起动系统匹配数学模型，仿真分析了起动机额定功率不同与额定功率一定而功率曲线不同时发动机的起动过程特征，以起动机额定功率最小为目标函数建立了发动机起动功率优化数学模型，并采用遗传算法进行优化。结果表明：对同一台发动机，当起动机额定功率增加20%，发动机起动时间可缩短10.32%；当起动机额定功率相同但功率特性曲线不同，发动机的起动时间相差3.44%；在保证发动机起动时间不变的情况下，优化得到的发动机起动需求功率减少了12.59%。研究结果可为航空发动机空气涡轮起动系统的起动机选型与参数设计提供理论参考。
- 航空发动机 /
- 起动机功率特性 /
- 空气涡轮起动系统 /
- 起动匹配模型 /
- 发动机起动功率优化
Abstract:
To study the influence of starter power characteristics on aero-engine starting performance and determine the optimal starting power demand for engine starting, the matching mathematical model of aero-engine air turbine starting system was established, and the influence of the starter with different rated powers and power curves on the starting process of the engine was simulated and analyzed. Finally, taking the minimum rated power of the starter as the objective function, the mathematical model of engine starting power optimization was established, and the genetic algorithm was used for optimization. The simulation results showed that for the same engine, the engine starting time was shortened by 10.32% when the rated power increased by 20%, and the starting time of the engine was 3.44% different when the rated power was the same but the power characteristic curve was different. And the optimized engine starting demand power was reduced by 12.59% under the condition of keeping the engine starting time unchanged. The results can provide a theoretical reference for the starter selection and parameter design of aero-engine air turbine starting system.
- aero-engine /
- starter power characteristics /
- air turbine starting system /
- start matching model /
- optimization of engine starting power

HTML

图 1 涡扇发动机起动特性

Figure 1. Starting characteristics of turbofan engine

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图 2 空气涡轮起动机功率特性

Figure 2. Power characteristics of air turbine starter

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图 3 起动模型仿真与试验对比

Figure 3. Comparison between starting model simulation and test

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图 4 不同额定功率和不同功率变化过程的ATS功率特性

Figure 4. ATS power characteristics of different rated power and different power change processes

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图 5 不同起动机功率特性下发动机的起动过程

Figure 5. Engine starting process under different starter power characteristics

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图 6 优化前后起动机扭矩和功率特性

Figure 6. Starter torque and power characteristics before and after optimization

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图 7 优化前后的起动机功率特性下发动机起动过程对比

Figure 7. Comparison of engine starting process under starter power characteristics before and after optimization

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表 1 优化模型约束条件参数

Table 1. Optimize model constraint parameters

参数	数值
T_55,max/K	723
t_sta,max/s	37.05
M_ct,max/（N·m）	282
M_ct,min/（N·m）	40
M_{delt,fire,min}/（N·m）	90

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表 2 优化前后起动机及发动机起动性能参数对比

Table 2. Comparison of starter and engine starting performance parameters before and after optimization

参数	数值		变化/%
参数	优化前	优化后	变化/%
N_ct,max/kW	60.47	52.87	−12.59
T₅₅（最大值）/K	662.54	662.57
t_sta/s	37.05	37.05
M_ct（最大值）/（N·m）	262.40	281.80	7.39
M_ct（最小值）/（N·m）	49.21	54.15	10.04
M_delt,fire/（N·m）	96.76	95.06	−1.76

下载: 导出CSV

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