航空发动机加力燃油计量模块建模与固有频率研究

杨艺琨; 马静; 黄奥; 杨磊

doi:10.13224/j.cnki.jasp.20230593

航空发动机加力燃油计量模块建模与固有频率研究

doi: 10.13224/j.cnki.jasp.20230593

杨艺琨^1,,
马静^1,*, ,,
黄奥²,
杨磊²

1.
西北工业大学动力与能源学院，西安 710072
2.
中国航发贵州红林航空动力控制科技有限公司，贵阳 550009

基金项目: 航空发动机及燃气轮机基础科学中心项目（P2022-DB-Ⅴ-001-001）

详细信息

作者简介:
杨艺琨（1998-），男，硕士生，主要研究领域为航空发动机控制系统建模与仿真。E-mail：15291404812@163.com

通讯作者:
马静（1972-），女，副教授，博士，主要研究领域为航空发动机控制。E-mail：rabbymj@nwpu.edu.cn

中图分类号: V271.4；TP391.9
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出版历程
- 收稿日期: 2023-09-14
- 网络出版日期: 2024-10-08

Modeling of aero-engine afterburning fuel metering module with natural frequency studies

YANG Yikun^1
,,
MA Jing^{1,*
, ,},
HUANG Ao²,
YANG Lei²

1.
School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China
2.
Guizhou Honglin Aero-engine Control Technology Corporation Limited，Aero Engine Corporation of China，Guiyang 550009，China

摘要

摘要:
针对某型航空发动机加力燃油计量模块结构复杂、试验分析困难等问题，基于力平衡和流量平衡方程在AMESim中进行了模块数字化建模和仿真，并采用流场仿真分析软件得到了稳态液动力相关模型参数，对加力各区等压差活门和计量活门性能进行了研究；利用AMESim的线性分析工具对加力各区关键活门的固有频率及相关影响因素进行了专门研究。仿真结果表明：建立的模型与试验数据相比误差小于5%，具有较高的精度和可靠性；同时固有频率的研究成果可为该型燃油计量模块的改进和工程排故提供理论支持和实践基础。
- 加力燃油计量模块 /
- 流场分析 /
- AMESim建模 /
- 稳态液动力 /
- 固有频率
Abstract:
Considering the complexities of the structure and the difficulties in experimental analysis of a certain type of aircraft engine’s afterburner fuel metering module, digital modeling and simulation were conducted in AMESim based on force balance and flow balance equations. Additionally, steady-state hydrodynamic model parameters were obtained using flow field simulation analysis software. Studies on the performance of pressure-equalizing valves and metering valves in different zones of the afterburner were carried out. Utilizing AMESim’s linear analysis tool, special research was conducted on the natural frequencies of critical valves in various zones of the afterburner, along with their influencing factors. The simulation results showed that the established model had an error of less than 5% compared with experimental data, demonstrating high accuracy and reliability. Moreover, the research on natural frequencies could provide a theoretical support and practical foundation for improvements and engineering troubleshooting of this type of fuel metering module.
- enhanced fuel metering module /
- flow field analysis /
- AMESim modeling /
- steady-state hydraulic force /
- natural frequency

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图 1 加力燃油计量模块结构原理图

Figure 1. Structure diagram of afterburning fuel metering module

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图 2 加力燃油计量模块结构方框图

Figure 2. Block diagram of afterburning fuel metering module structure

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图 3 AMESim建模原理和步骤

Figure 3. AMESim modeling principles and steps

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图 4 加力燃油0区计量模块

Figure 4. Afterburning fuel zone 0 metering module

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图 5 0区计量活门AMESim模型图

Figure 5. AMESim model drawing of zone 0 metering valve

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图 6 0区等压差活门原理及AMESim模型图

Figure 6. Block 0 isopressure differential valve principle and AMESim model map

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图 7 加力燃油1区计量模块

Figure 7. Afterburning fuel zone 1 metering module

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图 8 1区计量活门与执行活门AMESim仿真模型

Figure 8. AMESim simulation model of zone 1 metering valve and executive valve

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图 9 稳态液动力分析示意图

Figure 9. A diagram of a steady state hydrodynamic analysis

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图 10 活门三维结构及出口形状

Figure 10. Three-dimensional structure and exit shape of the valve

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图 11 活门内流道网格划分

Figure 11. Grid division of internal flow passage of valve

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图 12 活门流场仿真结果

Figure 12. Valve flow field simulation results

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图 13 0区计量模块整体AMESim仿真模型

Figure 13. Overall AMESim simulation model for zone 0 metering module

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图 14 0区等压差活门稳态特性仿真结果

Figure 14. Simulation results of steady state characteristics of zone 0 equal pressure differential valve

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图 15 0区计量活门位移阶跃响应曲线

Figure 15. Step response curve of metering valve displacement in zone 0

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图 16 0区计量活门位移与供油量试验拟合曲线和仿真曲线对比

Figure 16. Comparison of test fit curve and simulation curve of metering valve displacement and fuel delivery in zone 0

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图 17 1区计量模块AMESim仿真模型

Figure 17. AMESim simulation model of zone 1 metering module

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图 18 1区计量活门位移与供油量试验拟合曲线与仿真曲线对比

Figure 18. Comparison of test fit curves and simulation curves of zone 1 metering valve displacement versus fuel delivery rate

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图 19 AMESim线性化分析工具栏界面

Figure 19. AMESim linearization analysis tool bar interface

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图 20 活门流场仿真结果界面

Figure 20. Valve flow field simulation results interface

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图 21 1区计量模块整体固有频率分析结果界面

Figure 21. Overall natural frequency analysis results interface of the zone 1 metrology module

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图 22 1区计量模块整体模态分析结果

Figure 22. Overall modal analysis results of zone 1 metrology module

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图 23 计量活门弹簧刚度批处理结果

Figure 23. Batch results of measuring valve spring stiffness

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图 24 计量活门阀芯等效质量批处理结果

Figure 24. Batch results of equivalent mass of metering valve core

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图 25 等压差活门中腔出油孔径直径批处理结果

Figure 25. Batch results of diameter of oil delivery aperture in the medium cavity of constant pressure differential valves

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图 26 等压差活门中腔出口压力批处理结果

Figure 26. Batch results of chamber exit pressure of equal pressure differential valves

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图 27 执行活门出口流量批处理结果（流量）

Figure 27. Executing the valve exit flow batch results （flow）

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图 28 执行活门出口流量批处理结果（射流角）

Figure 28. Executing valve exit flow batch results （jet angle）

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表 1 0区计量模块固有频率影响因素分析结果

Table 1. Analysis results of factors contributing to natural frequencies of the zone 0 metrological module version

活门类型	影响因素		固有频率/Hz
等压差活门	中腔开口直径/mm	3.6	133.86
		3.8	135.78
		4	137.57
		4.2	139.19
计量活门	弹簧刚度/ （N/mm）	3.52174	19.42
		4.02174	20.67
		4.52174	21.78
		5.02174	22.97
		5.52174	24.04
	阀芯等效质量/kg	0.15225	28.13
		0.20225	24.41
		0.25225	21.78
		0.30225	19.96
		0.35225	18.49

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表 2 1区计量模块固有频率影响因素分析结果

Table 2. Analysis results of natural frequency influence factors of zone 1 metering module

影响因素		固有频率/Hz
弹簧刚度/（N/mm）	8.9524	24.53
	9.9524	25.32
	10.9524	26.09
	11.9524	26.84
	12.9524	27.56
阀芯等效质量/kg	0.5413	28.4
	0.5913	27.17
	0.6413	26.09
	0.6913	25.13
	0.7413	24.27

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