航空发动机弹支⁃测力环双向轴向力测试方法

李洪美; 欧阳运芳

doi:10.13224/j.cnki.jasp.20220086

航空发动机弹支⁃测力环双向轴向力测试方法

doi: 10.13224/j.cnki.jasp.20220086

李洪美,
欧阳运芳^,

中国航空发动机集团有限公司商用航空发动机有限责任公司，上海 201306

详细信息

作者简介:
李洪美（1985-），女，工程师，硕士，主要从事航空发动机整机测试及试验研究。

通讯作者:
欧阳运芳（1974-），女，研究员，硕士，主要从事航空发动机测试及故障诊断技术研究。E⁃mail：740228939@qq.com

中图分类号: V215
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- 被引次数: 0
出版历程
- 收稿日期: 2021-02-25

Measurement method of biaxial axial force of aero⁃engine elastic support and force⁃measuring ring

LI Hongmei,
OUYANG Yunfang^,

Commercial Aircraft Engine Company Limited，Aero Engine Corporation of China，Shanghai 201306，China

摘要

摘要:
为满足某型航空发动机三支点推力轴承轴向力测试要求，提出了弹支轴向力传感器和测力环并行测量方法和双向轴向力组合标定方法，给出了弹支轴向力传感器测量原理，开展了弹支轴向力标定仿真分析和试验研究，给出了中央传动齿轮箱（IGB）和棒轴承对标定结果的影响，并与发动机测力环测试结果进行了对比，研究表明：弹支轴向力传感器输出受安装位置和对象影响较大，有未装配IGB和棒轴承的标定数据偏差分别可达73.4%和17.8%，按发动机实际装配关系进行标定组件装配才能提高测量精度。发动机实测结果表明：弹支轴向力传感器多通道全桥取均值的测量方法和测力环轴向力数据趋势一致，由此验证提出的双向弹支轴向力测试方法具有很高的工程应用价值。
- 推力轴承 /
- 弹支 /
- 测力环 /
- 双向轴向力测试 /
- 标定试验
Abstract:
In order to meet the test requirements of axial force for three fulcrum thrust bearings of a certain aero⁃engine，the parallel measurement method of the elastic support axial force sensor and the force⁃measuring ring and a combined calibration method of the bidirectional axial force were proposed.The measuring principle of the axial force sensor of the elastic support was given，the simulation analysis and calibration experiment of the axial force of the elastic support were carried out，the influences of intermediate gear box （IGB） and rod bearing on the calibration results were given and compared with the engine force⁃measuring ring test results.Research showed that the output of the elastic support axial force sensor was greatly affected by the installation position and object，with calibration data deviations of up to 73.4% and 17.8% for unassembled IGB and rod bearings，and the assembly of the calibration components according to the actual assembly relationship of the engine can improve the measurement accuracy.The measured results of the engine showed that the trend of the measurement method of multi⁃channel full bridge mean of elastic support axial force sensor was consistent with the axial force data obtained from the force⁃measuring ring，verifying that the method of measuring the axial force of the bidirectional elastic supports had a high value of engineering application.
- thrust bearing /
- elastic support /
- force⁃measuring ring /
- biaxial axial force measurement /
- calibration test
注释:

1) 张雪

HTML

图 1 弹支轴向力传感器测量原理

Figure 1. Measuring principle of elastic support axial force sensor

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图 10 轴向力组合标定曲线

Figure 10. Combined calibration curve of axial force

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图 11 测力环轴向力测试数据及其分量

Figure 11. Axial force test data and its components of force⁃measuring ring

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图 12 弹支轴向力测试数据及其分量

Figure 12. Axial force test data and its components of elastic support axial force sensor

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图 13 发动机轴向力并行测试数据

Figure 13. Parallel axial force test data of engine

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表 1 50 kN正向轴向力作用下弹支全桥输出对比

Table 1. Output comparison of elastic support full bridge under 50 kN positive axial force

辐条编号	应变/10^-6			IGB影响/%	棒轴承影响/%
辐条编号	方案1	方案2	方案3	IGB影响/%	棒轴承影响/%
1	1 406	1 291	1 311	9.0	-1.5
2	1 585	1 443	1 474	9.9	-2.1
3	1 625	1 481	1 488	9.7	-0.5
4	1 592	1 444	1 454	10.2	-0.7
5	718	691	749	3.9	-7.8
6	928	875	914	6.0	-4.2
7	1 683	1 525	1 516	10.3	0.6
8	1 562	1 433	1 433	9.0	0
9	1 566	1 427	1 438	9.8	-0.8
10	1 418	1 308	1 342	8.5	-2.6
11	1 427	1 310	1 375	9.0	-4.7
12	1 559	1 390	1 439	12.1	-3.4
13	1 473	1 302	1 329	13.1	-2.1
14	1 495	1 395	1 421	7.1	-1.8
15	1 325	1 418	1 386	-6.6	2.3
16	1 256	1 344	1 306	-6.5	2.9
17	1 324	1 404	1 335	-5.7	5.2
18	1 260	1 520	1 427	-17.1	6.5
19	943	1 311	1 252	-28.1	4.7
20	304	1 143	1 073	-73.4	6.5
21	305	1 143	1 074	-73.3	6.4
22	945	1 311	1 252	-27.9	4.7
23	1 267	1 534	1 431	-17.4	7.2
24	1 326	1 407	1 343	-5.8	4.8
25	1 260	1 345	1 310	-6.3	2.7
26	1 323	1 418	1 385	-6.7	2.4
27	1 495	1 397	1 421	7.0	-1.7
28	1 473	1 302	1 330	13.2	-2.1
29	1 559	1 390	1 439	12.1	-3.4
30	1 427	1 310	1 375	9.0	-4.7
31	1 418	1 308	1 342	8.5	-2.6
32	1 566	1 427	1 438	9.8	-0.8
33	1 562	1 433	1 432	9.0	0
34	1 683	1 526	1 516	10.3	0.6
35	928	875	914	6.1	-4.3
36	718	691	750	3.9	-7.8
37	1 592	1 444	1 453	10.2	-0.6
38	1 625	1 481	1 487	9.7	-0.4
39	1 586	1 443	1 473	9.9	-2.0
40	1 406	1 290	1 310	9.0	-1.5

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表 2 50 kN反向轴向力作用下弹支全桥输出对比

Table 2. Output comparison of elastic support full bridge under 50 kN reverse axial force

辐条编号	应变/10^-6			IGB影响/%	棒轴承影响/%
辐条编号	方案1	方案2	方案3	IGB影响/%	棒轴承影响/%
1	-1 382	-1 336	-1 314	3.4	1.7
2	-1 393	-1 355	-1 330	2.8	1.9
3	-1 399	-1 359	-1 332	3.0	2.0
4	-1 373	-1 346	-1 324	2.0	1.7
5	-1 231	-1 158	-1 205	6.3	-3.9
6	-1 277	-1 213	-1 242	5.3	-2.4
7	-1 387	-1 361	-1 333	1.9	2.1
8	-1 406	-1 357	-1 334	3.6	1.7
9	-1 396	-1 360	-1 334	2.7	1.9
10	-1 383	-1 330	-1 315	3.9	1.2
11	-1 380	-1 328	-1 310	4.0	1.3
12	-1 365	-1 336	-1 318	2.2	1.4
13	-1 372	-1 313	-1 309	4.5	0.3
14	-1 389	-1 351	-1 345	2.8	0.4
15	-1 391	-1 396	-1 380	-0.4	1.1
16	-1 372	-1 422	-1 406	-3.5	1.1
17	-1 326	-1 440	-1 424	-8.0	1.1
18	-1 275	-1 437	-1 407	-11.3	2.1
19	-1 134	-1 310	-1 343	-13.5	-2.5
20	-845	-970	-1 180	-12.9	-17.8
21	-846	-970	-1 180	-12.8	-17.8
22	-1 135	-1 390	-1 338	-13.3	-2.2
23	-1 273	-1 437	-1 403	-11.4	2.4
24	-1 325	-1 440	-1 421	-7.9	1.3
25	-1 372	-1 421	-1 405	-3.4	1.1
26	-1 391	-1 396	-1 380	-0.3	1.1
27	-1 389	-1 352	-1 346	2.8	0.4
28	-1 372	-1 313	-1 309	4.5	0.3
29	-1 365	-1 336	-1 317	2.2	1.4
30	-1 381	-1 328	-1 310	4.0	1.3
31	-1 382	-1 330	-1 314	3.9	1.2
32	-1 396	-1 360	-1 334	2.7	1.9
33	-1 406	-1 357	-1 334	3.6	1.7
34	-1 387	-1 361	-1 333	1.9	2.1
35	-1 277	-1 213	-1 242	5.3	-2.4
36	-1 231	-1 158	-1 205	6.3	-3.9
37	-1 373	-1 346	-1 324	2.0	1.6
38	-1 399	-1 359	-1 332	3.0	2.0
39	-1 393	-1 355	-1 330	2.9	1.8
40	-1 382	-1 336	-1 315	3.4	1.6

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表 3 50 kN正向轴向力弹支仿真与试验对比

Table 3. Comparison between simulation data and test data of elastic support under 50 kN positive axial force

测点编号	试验应变/10^-6	仿真应变/10^-6	偏差/%
$F_{t 1}$	1 342	1 625	-21
$F_{t 2}$	1 786	1 625	9
$F_{t 3}$	1 341	1 683	-26
$F_{t 4}$	1 546	1 260	18
$F_{t 5}$	1 359	1 267	7
$F_{t 6}$	1 476	1 495	-1
均值	1 475	1 493	-1

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表 4 50 kN反向轴向力弹支仿真与试验对比

Table 4. Comparison between simulation data and test data of elastic support under 50 kN reverse axial force

测点编号	试验应变/10^-6	仿真应变/10^-6	偏差/%
$F_{t 1}$	-1 365	-1 399	2
$F_{t 2}$	-1 603	-1 399	-13
$F_{t 3}$	-1 264	-1 387	10
$F_{t 4}$	-1 343	-1 275	-5
$F_{t 5}$	-1 375	-1 273	-7
$F_{t 6}$	-1 565	-1 389	-11
均值	-1 419	-1 354	-5

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表 5 弹支轴向力和测力环标定数据对比

Table 5. Calibration data comparison between elastic support axial force sensor and force⁃measuring ring

载荷/kN	110 kN测力环应变/10^-6	弹支轴向力传感器应变/10^-6	应变比值
10	856	286	2.99
20	1 674	585	2.86
30	2 440	884	2.76
40	3 174	1 179	2.69
50	3 884	1 475	2.63
80	5 919	2 417	2.45
110	7 904	3 368	2.35

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