某跨超声速风洞全挠性壁喷管控制系统设计与实现

高川; 芮伟; 秦建华; 王飞; 蒋婧妍

doi:10.11729/syltlx20160071

某跨超声速风洞全挠性壁喷管控制系统设计与实现

中国空气动力研究与发展中心, 四川绵阳 621000

详细信息

作者简介:
高川(1987-), 男, 贵州赤水人, 工程师。研究方向:风洞控制系统设计, 控制理论与控制工程。通信地址:四川省绵阳市北川101信箱24分箱(622762)。E-mail:gaochuan@buaa.edu.cn

通讯作者:
芮伟, E-mail:rw827130@sohu.com

中图分类号: TP273
计量
- 文章访问数: 270
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- PDF下载量: 37
出版历程
- 收稿日期: 2016-04-25
- 修回日期: 2016-09-26
- 刊出日期: 2016-12-24

Design and realization of full flexible nozzle control system of the trans-supersonic wind tunnel

China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

摘要

摘要: 为实现全电机直接驱动方式对某跨超声速风洞全挠性壁喷管型面的控制，针对其执行机构分布跨度大、运动控制电机多、同步精度要求高且弯折应力控制严等特点，采用西门子SIMOTION D+S120运动控制平台，提出一种基于虚拟轴+电子齿轮的同步控制策略，解决了全挠性喷管执行机构精确定位与多轴比例同步的难题，同时设计多重安全联锁控制，避免了挠性板过载和损坏的问题。通过调试试验测试，各电动缸可根据比例同步要求在0~1mm/s速度范围内匀速运行，跟踪误差≤±0.01mm/s，比例同步误差≤±0.02mm/s，喷管喉道前型面误差≤±0.2mm，喉道后误差≤±0.06mm。结果表明：该系统功能完备，同步控制精度及重复性精度均满足工程应用要求，取得了实际应用成果。
- SIMOTION /
- 风洞 /
- 挠性壁喷管 /
- 多轴同步 /
- 运动控制
Abstract: Flexible nozzle has to be designed long enough in order to ensure the elasticity of the nozzle wall material. The characteristics of long-span, large amount, complex structure of the actuators bring enormous challenge to the design of the flexible nozzle contour control system. It is not only needed to control the positon of each actuator precisely, but also to control motion axes for synchronization. The effect of synchronization control has a direct impact on the flexible plant forming quality and the wind tunnel flow quality. To solve the accurate positioning, multi-axis proportion synchronous control problems and to ensure safety of the full flexible nozzle in the new trans-supersonic wind tunnel of China Aerodynamics Research and Development Center, key technologies are researched. A virtual axis with the gearing synchronization strategy is proposed the redundant position technology axis is established and the control parameters is optimized based on SIMENS SIMOTION D and S120 motion control platform. The test results of actuators' displacement and servo motors' speed are analyzed based on the experiment of the multi-axis proportion synchronization motion system. The results show that the control system possesses complete functionality, that all the actuators can move uniformly in the range of 0~1mm/s, the tracking error is less than or equal to ±0.01mm/s, the proportion synchronization error is less than or equal to ±0.02mm/s, and the contour error before and after the nozzle throat point is less than or equal to ±0.2mm and ±0.06mm. The synchronization control precision and repeatability accuracy can meet the engineering application request and achieve good effect.
- SIMOTION /
- wind tunnel /
- flexible nozzle /
- multi-axis synchronization /
- motion control

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图 1 某跨超声速风洞全挠性喷管结构图

Fig. 1 Structure of the full flexible nozzle in the trans-supersonic wind tunnel

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图 2 型面控制系统硬件结构图

Fig. 2 Schematic of the contour control hardware system

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图 3 电子齿轮同步

Fig. 3 Gearing synchronization

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图 4 软件系统结构图

Fig. 4 Structure of the software system

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图 5 马赫数B型面下挠性板特征曲线

Fig. 5 The floor characteristic curve of Ma B

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图 6 下挠性板中心线误差

Fig. 6 Contour error of the floor plant

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图 7 挠性板弯折应力示例

Fig. 7 Bending stress of the floor plant

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图 8 上位机控制界面示例

Fig. 8 Control system interface

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表 1 Ma=B下挠性板中心线测试数据

Table 1 Centre line test data of Ma=B floor plant

测点编号	误差均值	标准差	测点编号	误差均值	标准差
1	0.16	0.06	15	0.01	0.02
2	-0.19	0.04	16	-0.05	0.02
3	-0.13	0.04	17	-0.04	0.02
4	0.17	0.04	18	0.03	0.01
5	0.15	0.05	19	0.03	0.05
6	-0.19	0.03	20	-0.07	0.03
7	-0.06	0.03	21	-0.08	0.02
8	0	0.03	22	0.07	0.02
9	0.01	0.03	23	0.02	0.01
10	-0.03	0.03	24	-0.06	0.03
11	-0.03	0.03	25	-0.01	0.02
12	-0.02	0.04	26	-0.02	0.03
13	-0.01	0.02	27	0.03	0.02
14	0	0.01

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表 2 电动缸目标位移差值

Table 2 D-value of electric cylinders

No.	s_i/mm	No.	s_i/mm	No.	s_i/mm
1	22.34	7	77.73	13	2.64
2	52.44	8	65.90	14	0.63
3	79.27	9	55.51	15	0.26
4	90.17	10	44.02	16	0.00
5	89.43	11	29.15	17	0.00
6	84.29	12	13.93

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表 3 电动缸输出参数表

Table 3 Output parameters of electric cylinders

No.	μ_i	υ_i/(mm·s^-1)	e_i/(mm·s^-1)	δ_i/(mm·s^-1)
1	0.24	0.194	1.32×10^-4	-1.71×10^-3
2	0.57	0.455	-1.59×10^-4	-8.25×10^-4
3	0.86	0.688	-5.10×10^-5	2.20×10^-4
4	0.98	0.783	3.20×10^-4	3.86×10^-4
5	0.97	0.776	-2.00×10^-4	-5.33×10^-4
6	0.91	0.732	4.07×10^-4	6.52×10^-4
7	0.84	0.675	3.43×10^-4	-3.84×10^-5
8	0.71	0.572	4.56×10^-5	-3.43×10^-4
9	0.60	0.482	1.78×10^-4	2.32×10^-4
10	0.48	0.382	-7.29×10^-5	-4.48×10^-4
11	0.32	0.253	-5.09×10^-5	-8.34×10^-6
12	0.15	0.121	8.34×10^-5	7.13×10^-4
13	0.03	0.023	6.47×10^-5	1.71×10^-3

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