激波风洞超燃冲压发动机推力测量技术研究

赵荣娟; 刘施然; 周正; 吴里银; 吕治国

doi:10.11729/syltlx20210025

激波风洞超燃冲压发动机推力测量技术研究

doi: 10.11729/syltlx20210025

赵荣娟^{1, 2,},
刘施然¹,
周正²,
吴里银¹,
吕治国^1, ,

1.
中国空气动力研究与发展中心超高速空气动力研究所，绵阳　621000
2.
中国空气动力研究与发展中心高超声速冲压发动机技术重点实验室，绵阳　621000

基金项目: 高超声速冲压发动机重点实验室基金（STS/MY-KFKT-2019004）

详细信息

作者简介:
赵荣娟：（1981-），女，河南新郑人，硕士研究生，工程师。研究方向：高超声速气动力试验技术。通信地址：四川省绵阳市涪城区二环路南段6号（621000）。E-mail：zrj04@126.com

通讯作者:
E-mail：lzgde2003@126.com

中图分类号: TP204
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- 文章访问数: 380
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- 被引次数: 0
出版历程
- 收稿日期: 2021-03-26
- 修回日期: 2021-07-03
- 录用日期: 2021-07-12
- 网络出版日期: 2022-09-23
- 刊出日期: 2022-09-02

Research of scramjet thrust test in shock tunnel

ZHAO Rongjuan^{1, 2
,},
LIU Shiran¹,
ZHOU Zheng²,
WU Liyin¹,
LYU Zhiguo^{1
, ,}

1.
Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang　621000, China
2.
Science and Technology on Scramjet Laboratory of Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang　621000, China

摘要

摘要: 为满足高马赫数超燃冲压发动机研制的需求，在激波风洞中开展了超燃冲压发动机推力测量技术研究工作，采用压电式推力测量天平测量了超燃冲压发动机模型上的推力。根据试验模型的受力特性进行了天平设计与校准研究，并在激波风洞中开展了验证性试验。在天平设计中，采用有限元力电耦合分析方法对天平性能进行了预估。分析结果表明：天平主分量的灵敏度可达到17.447 mV/N，一阶振动模态可达到1022.40 Hz。在验证试验中，分别测量了超燃冲压发动机模型在喷注和不喷注燃料条件下的推力。试验结果表明：在2种试验状态下，发动机阻力差值最大约220 N，说明设计的压电式推力测量天平可分辨出不同试验条件下作用在发动机上的推力大小。
- 压电天平 /
- 超燃冲压发动机 /
- 推力测量 /
- 激波风洞
Abstract: In order to meet the need of high-Mach number scramjet development, the scramjet thrust test technique in the shock tunnel is studied. A piezoelectric balance is used to test the scramjet thrust in the shock tunnel. The research includes the balance design, calibration and thrust test in the shock tunnel. The finite element analysis method is used in the balance design to optimize the balance structure. The simulation results show that the sensitivity of the balance can reach 17.447 mV/N, and the first-order frequency mode can reach 1022.40 Hz. The validation test is conducted in the shock tunnel with the fuel and without the fuel injection. The test results show that, the difference of the drag force is about 220 N between two different experimental conditions. Which means the thrust of the scramjet under different conditions can be distin-guished with the new developed balance.
- piezoelectric balance /
- scramjet /
- thrust test /
- shock tunnel

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图 1 压电式推力天平的有限元模型

Figure 1. ANSYS model of piezoelectic balance

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图 2 天平输出与轴向载荷之间的关系

Figure 2. Balance output voltage with different loading

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图 3 瞬态分析结果曲线

Figure 3. Loading and result in transient analysis

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图 4 双天平组合校准照片

Figure 4. Photo of two balance combination calibration

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图 5 天平校准结果

Figure 5. Balance calibration result

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图 6 风洞试验结果

Figure 6. Thrust test result in shock tunnel

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表 1 材料参数表

Table 1. Material parameters

Parameter	Balance	PZT-5	Scramjet model
c₁₁、c₂₂ /GPa	/	115.65	/
c₁₂/GPa	/	64.89	/
c₁₃、c₂₃/GPa	/	62.29	/
c₃₃/GPa	/	92.98	/
c₄₄、c₅₅/GPa	/	17.86	/
c₆₆/GPa	/	17.86	/
E/GPa	196.00	/	200.00
ρ/（kg·m⁻³）	7800.00	8640.00	7800.00
μ	0.30	/	0.30
ε₁₁、ε₂₂/（nF·m⁻¹）	/	8.93	/
ε₃₃/（nF·m⁻¹）	/	6.92	/
e₁₃、e₂₃/（C·m⁻²）	/	−12.31	/
e₃₃/（C·m⁻²）	/	20.76	/
e₅₂、e₆₁/（C·m⁻²）	/	17.04	/

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表 2 天平灵敏度评估结果

Table 2. Simulation results of the balance sensitivity

模式	主系数/ （mV·N⁻¹）	法向力干扰系数/ （mV·N⁻¹）	俯仰力矩干扰系数/ （mV·N⁻¹·m）
天平	17.447	2.418×10⁻³	3.426×10⁻³
天平-模型整体	17.525	1.181×10⁻²	−0.109

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表 3 天平模态结果

Table 3. Modal results of the balance

阶数	一阶	二阶	三阶	四阶	五阶	六阶
天平	1022.40	1418.80	1507.50	1770.50	2574.90	2718.80
天平-模型整体	187.82	231.05	268.17	368.57	594.98	605.42

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表 4 双天平校准结果

Table 4. Calibration result with two balances

施加载荷/kg	2#天平测量载荷/kg	1#天平测量载荷/kg	测量载荷/kg	误差
1.2891	1.0702	0.1569	1.2271	−4.81%
2.2891	1.9755	0.2462	2.2217	−2.94%
5.2891	4.7460	0.5909	5.3369	0.90%
10.2891	9.1396	1.1998	10.3394	0.49%
12.2891	10.9360	1.4516	12.3876	0.80%
15.2891	13.6033	1.7696	15.3729	0.55%
17.2891	15.3717	1.9779	17.3496	0.35%

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参考文献(21)

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