【摘要】 介绍了 NF- 3低速风洞二元实验段翼型动态实验中模型正弦驱动机构的设计原理和技术特点 ,以及为解决运动平稳灵活性而采取的一些工艺措施。几年来的实验表明 ,该机构设计合理 ,运动关系准确 ,运行可靠 ,可以满足翼型动态实验要求更多还原

【Abstract】 We present the design principle and the structural characters of a sine driving system apparatus, which have been used since 1994 by NPU NF 3 wind tunnel in the dynamic stall experiment on the oscillating airfoil model. Some measures to improve the stability and flexibility are given. The obvious advantages of its simple structure and more accurate sine relationship between the oscillating angle of the model and the rotating angle of the engine have been proved in recent years. Tests show that this system is perfectly suitable for the study of the aerodynamic properties of the oscillating airfoil.更多还原