刚性变弯度机翼设计及低速风洞试验研究

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (21) : 157-167.

论文

刚性变弯度机翼设计及低速风洞试验研究

冒森1，杨超2，谢长川2，孟杨2

作者信息 +

Design and low speed wind tunnel tests of a rigid variable camber wing

MAO Sen1, YANG Chao2, XIE Changchuan2, MENG Yang2

Author information +

文章历史 +

摘要

飞行器机翼变弯度技术可以实时调整机翼弯度来提高飞行效率，以适应复杂多变的任务环境，被认为是未来航空技术研究方向之一。本文考虑到当前技术成熟度和可靠性，设计了一款由四段刚性翼盒构成的变弯度机翼。变弯度机翼具有结构复杂，难以精确建模的特点，在初步设计阶段需要结合仿真计算和风洞试验开展研究。于是本文首先通过气动力计算软件XFOIL对刚性变弯度机翼进行仿真计算。然后设计变弯度机翼风洞试验平台，搭建测试采集系统，对刚性变弯度机翼进行低速风洞试验。仿真计算结果和风洞试验结果表明本文提出的刚性变弯度机翼作为变弯度机翼的一种设计方案，结构简单可靠且变形效果显著，在增升减阻，保证高升阻比和提供机翼配平力矩等方面具有优势。本文设计的变形机翼风洞试验平台结构可靠，容易操作，其实验值和仿真计算值平均相对误差小于15%，能正确反映转角变化对刚性变弯度机翼气动力的影响，为设计方法的发展和未来实际飞行器的设计提供验证手段。

Abstract

Variable camber wing technology can adjust the wing camber in real time to improve flight efficiency to adapt to complex and changing mission environments, and is considered to be one of the directions of future aviation technology research. A variable camber wing consisting of four rigid wing boxes is designed considering the current technology maturity and reliability. While the variable camber wing has the characteristics of complicated structure and difficult to accurately model, it is necessary to carry out research in combination with simulation calculation and wind tunnel test in the preliminary design stage. Firstly the aerodynamic calculation software XFOIL is used to simulate the rigid variable camber wing. Secondly the wind tunnel test platform of the variable camber wing is designed, and the acquisition system is built to conduct low speed wind tunnel test on the rigid variable camber wing. Simulation calculation results and wind tunnel test results show that the rigid variable camber wing proposed in this paper is simple and reliable and have advantages in increasing lift and reducing drag, ensuring high lift to drag ratio and providing wing balancing moment. Besides, the wind tunnel test platform of morphing wing is also reliable in structure and easy to operate. The average relative error between the experimental value and the simulation value is less than 15%. It can accurately reflect the influence of the change of wing box angle on the aerodynamic force of the rigid variable camber wing, and can provide a verification method for the development of design methods and the design of future actual aircraft.

导出引用

冒森1，杨超2，谢长川2，孟杨2. 刚性变弯度机翼设计及低速风洞试验研究[J]. 振动与冲击, 2021, 40(21): 157-167

MAO Sen1, YANG Chao2, XIE Changchuan2, MENG Yang2. Design and low speed wind tunnel tests of a rigid variable camber wing[J]. Journal of Vibration and Shock, 2021, 40(21): 157-167

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