航空学报 > 2023, Vol. 44 Issue (S2): 729296-729296   doi: 10.7527/S1000-6893.2023.29296

FL⁃61结冰风洞翼型俯仰振荡机构研制

许岭松, 吴渊(), 朱东宇, 张付昆, 刘昱   

  1. 中国航空工业空气动力研究院 辽宁省飞行器防除冰重点实验室,沈阳 110034
  • 收稿日期:2023-07-10 修回日期:2023-07-16 接受日期:2023-08-03 出版日期:2023-12-25 发布日期:2024-02-19
  • 通讯作者: 吴渊 E-mail:wuyuan_avicari@126.com
  • 基金资助:
    国家重点研发计划(2022YFE0203700);航空科学基金(2023Z010027001)

A wing pitch oscillation mechanism for FL⁃61 icing wind tunnel

Lingsong XU, Yuan WU(), Dongyu ZHU, Fukun ZHANG, Yu LIU   

  1. Liaoning Provincial Key Laboratory of Aircraft Ice Protection,AVIC Aerodynamics Research Institute,Shenyang 110034,China
  • Received:2023-07-10 Revised:2023-07-16 Accepted:2023-08-03 Online:2023-12-25 Published:2024-02-19
  • Contact: Yuan WU E-mail:wuyuan_avicari@126.com
  • Supported by:
    National Key R&D Program of China(2022YFE0203700);Aeronautical Science Foundation of China(2023Z010027001)

摘要:

为开展翼型迎角在周期性变化时的结冰特征研究,研制了适配于FL-61结冰风洞的翼型俯仰振荡机构,使翼型的迎角在试验过程中呈周期性正弦变化。该机构安装在试验段侧壁的主动端,调节伺服电机转速实现翼型迎角俯仰运动频率的无级变化,更换机械偏心轮可改变翼型的振幅,更换转接件可调整翼型的平均迎角。该设计形式的优势在于,伺服电机单向转动,对电机动态要求较低,控制方式简单。经测试,该机构的迎角控制精度≤3′,最高振荡频率为6 Hz。该装置已成功应用于FL-61结冰风洞,获得了翼型不同运动工况的冰形特征,为深入研究旋翼翼型俯仰振荡的结冰特性提供了试验平台。

关键词: 结冰, 风洞试验, 结冰风洞, 振荡, 翼型

Abstract:

To study the icing characteristics of airfoil during the periodic variation of the angle of attack, an oscillating mechanism adapted to the FL-61 icing wind tunnel was developed. This mechanism enables the airfoil’s angle of attack to vary sinusoidally during icing tests. The mechanism is installed on the active side of the test section sidewall and the rotational speed of a servo motor is adjusted to achieve continuous adjustment of the airfoil’s pitching motion frequency. The amplitude of the airfoil’s motion can be modified by changing the mechanical eccentric wheel, and the average angle of attack can be adjusted by replacing the adapter. This design offers advantages such as the unidirectional rotation of the servo motor, lower demands on motor dynamics, and simplified control method. Through testing, the mechanism has demonstrated the angle control accuracy (≤3'),the maximum oscillation frequency (6 Hz). The device has been successfully applied in the FL-61 icing wind tunnel, showing good repeatability and obtaining ice formation characteristics under various oscillation conditions, providing an experimental platform for further research on the icing characteristics of airfoils in pitching motion and oscillation.

Key words: icing, wind tunnel test, icing wind tunnel, oscillation, airfoil

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