摘要
通过对6种不同结构的柔性翼模型进行的变迎角、变风速风洞试验,研究对比了不同柔度的柔性翼的升阻特性以及对风速变化的响应特性。结果表明,微型飞机采用柔性翼虽然降低了机翼升力的产生,但能够明显改善升阻比;不同柔度的柔性翼会直接影响微型飞机对风速变化的敏感程度,当机翼结构和柔度经过设计后,可以显著提高微型飞机对风速变化的适应能力。试验数据和结论对提高微型飞机的升阻特性以及对风速变化的响应特性具有一定参考价值。
This paper has done a research of aerodynamic characters and a comparison of sensitivity to wind variations of 6 different models according to the datas of a wind tunnel experiment.The results show that,firstly,the lift-to-drag ratio of MAVs can be significantly improved by using flexible wings although its lift-coefficients has been reduced.Secondly,the sensitivity of MAVs to variable wind has obvious relationship with the rigidness and reinforcement of flexible wings.All the results in this paper can be further used in the field of MAV design.
出处
《实验流体力学》
EI
CAS
CSCD
北大核心
2011年第1期35-36,47,共3页
Journal of Experiments in Fluid Mechanics
基金
国家自然基金项目(10802066)
关键词
风洞试验
柔性翼
气动特性
风速变化
wind tunnel test
flexible wing
aerodynamic characteristics
wind variation
