对转螺旋桨气动力和气动噪声风洞试验技术

陈正武; 姜裕标; 赵昱; 卢翔宇; 仝帆

doi:10.13224/j.cnki.jasp.20220476

对转螺旋桨气动力和气动噪声风洞试验技术

doi: 10.13224/j.cnki.jasp.20220476

中国空气动力研究与发展中心低速空气动力研究所气动噪声控制重点实验室，四川绵阳 621000

详细信息

作者简介:
陈正武（1981-），男，副研究员，硕士，主要从事旋转机械气动噪声控制研究

通讯作者:
姜裕标（1969-），男，研究员，博士，主要从事低速空气动力学研究。E-mail：ybjiang@Soho.com

中图分类号: V211.6
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出版历程
- 收稿日期: 2022-07-02
- 网络出版日期: 2023-09-20

Counter-rotating propellers aerodynamic and aerodynamic noise test technology in wind tunnel

Key Laboratory of Aerodynamic Noise Control，Low Speed Aerodynamics Institute， China Aerodynamics Research and Development Center，Mianyang Sichuan 621000，China

摘要

摘要:
针对对转螺旋桨气动力和气动噪声性能评估和优化研究需求，依托声学风洞，研发了1套大功率对转螺旋桨动力模拟试验装置，并发展了对转螺旋桨气动力和气动噪声风洞试验数据处理方法。对转螺旋桨动力模拟试验装置由300 kW电动机提供动力输入，由齿轮箱实现增速和内外传动轴反向旋转，由旋转轴天平测量气动力。装置完成研制后，在5.5 m×4 m声学风洞开展了对转螺旋桨气动力和气动噪声试验。结果表明对转螺旋桨动力模拟试验装置的转速控制精度优于0.5 r/min，传动效率达到97.7%，装置运行平稳、可靠；对转螺旋桨试验的拉力系数重复性精度优于0.002 1，功率系数重复性精度优于0.0022，气动噪声重复性精度优于0.5 dB。
- 对转螺旋桨 /
- 开式转子 /
- 气动噪声 /
- 声学风洞 /
- 旋转轴天平
Abstract:
According to the performance evaluation and optimization research requirements of counter-rotating propellers aerodynamic and aerodynamic noise, a high power counter-rotating propellers dynamic simulation test rig was developed based on acoustic wind tunnel, and the data processing method of counter-rotating propellers wind tunnel test was developed. The counter-rotating propellers dynamic simulation test rig was powered by 300 kW electric motor, accelerated by the gear box to realize internal and external drive shaft reverse rotation, and the aerodynamic was measured by rotating shaft balances. After development of the rig, aerodynamic and aerodynamic noise test of counter-rotating propellers were carried out in 5.5 m×4 m acoustic wind tunnel. The result showed that the rotating speed control accuracy of counter-rotating propellers dynamic simulation test rig was better than 0.5 r/min, the transmission efficiency reached 97.7%, and the test rig operated stably and reliably. The test repeatability accuracy of counter-rotating propellers pull coefficient was better than 0.002 1, that of counter-rotating propellers power coefficient was better than 0.002 2, and that of counter-rotating propellers aerodynamic noise was better than 0.5 dB.
- counter-rotating propellers /
- open rotor /
- aerodynamic noise /
- acoustic wind tunnel /
- rotating shaft balances

HTML

图 1 对转螺旋桨动力模拟试验总体方案

Figure 1. General scheme of counter-rotating propellers dynamic simulation test rig

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图 2 对转螺旋桨风洞试验

Figure 2. Counter-rotating propellers wind tunnel test

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图 3 内外传动轴

Figure 3. Internal and external drive shaft

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图 4 内传动轴坎贝尔图

Figure 4. Campbell chart of internal drive shaft

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图 5 外传动轴坎贝尔图

Figure 5. Campbell chart of external drive shaft

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图 6 旋转轴天平

Figure 6. Rotating shaft balance

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图 7 气动噪声指向性试验数据处理流程

Figure 7. Data processing flow of aerodynamic noise directivity test

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图 8 自由场传声器布置图

Figure 8. Layout of free field microphone

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图 9 对转螺旋桨动力模拟试验装置的转速控制曲线

Figure 9. Rotating speed control curve of counter-rotating propellers dynamic simulation test rig

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图 10 对转螺旋桨动力模拟试验装置的振动信号频谱

Figure 10. Vibration spectrum of counter-rotating propellers dynamic simulation test rig

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图 11 对转螺旋桨动力模拟试验装置的温升曲线

Figure 11. Temperature rise curves of counter-rotating propellers dynamic simulation test rig

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图 12 对转螺旋桨动力模拟试验装置的传动效率

Figure 12. Transmission efficiency of counter-rotating propellers dynamic simulation test rig

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图 13 对转螺旋桨拉力系数重复性试验结果

Figure 13. Repeatability test result of counter-rotating propellers tension coefficient

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图 14 对转螺旋桨功率系数重复性试验结果

Figure 14. Repeatability test result of counter-rotating propellers power coefficient

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图 15 对转螺旋桨气动噪声重复性试验结果

Figure 15. Repeatability test result of counter-rotating propellers aerodynamic noise

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图 16 风速68 m/s时测点2的单频噪声频谱

Figure 16. Tonal spectra of second observation point at wind velocity 68 m/s

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表 1 对转螺旋桨轴阶次单音

Table 1. Shaft order tones of counter-rotating propellers

n₁	n₂=0	n₂=1	n₂=2	n₂=3	n₂=4	n₂=5	n₂=6	n₂=7	n₂=8	n₂=9	n₂=10	声压级
0		8	16	24	32	40	48	56	64	72	80
1	6	14	22	30	38	46	54	62	70	78	86
2	12	20	28	36	44	52	60	68	76	84	92
3	18	26	34	42	50	58	66	74	82	90
4	24	32	40	48	56	64	72	80	88
5	30	38	46	54	62	70	78	86	94
6	36	44	52	60	68	76	84	92
7	42	50	58	66	74	82	90
8	48	56	64	72	80	88
9	54	62	70	78	86	94
10	60	68	74	82	90

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