Chord(对等)
气动弹性
直升机旋翼
航空航天工程
工程类
变形
刀(考古)
转子(电动)
飞行模拟器
飞行试验
空气动力学
风洞
变量(数学)
结构工程
机械工程
计算机科学
数学
人工智能
分布式计算
数学分析
作者
Christoph Balzarek,Steffen Kalow,Johannes Riemenschneider,Andrés E. Rivero
出处
期刊:Actuators
[MDPI AG]
日期:2022-02-09
卷期号:11 (2): 53-53
被引量:6
摘要
Helicopters are still an indispensable addition to aviation in this day and age. They are characterized by their ability to master both forward flight and hover. These characteristics result in a wide range of possible operations. Key for the design of the rotor blades is a blade design that always represents a compromise between the different flight conditions, which enables safe and efficient flight in the various flight conditions. In order to operate the rotor blade even more efficiently in all flight conditions, a new morphing concept, the so-called linear variable chord extension, has been developed. Here, the blade chord length in the root area is changed with the help of an elastic skin to adapt it to the respective flight condition. The simulations performed for this concept showed a promising increase in overall helicopter performance. The fabrication of the resulting demonstrator as well as the tests in the whirl-tower and wind tunnel are presented in this paper. The results of the tests show that the concept of linear variable chord extension has a positive influence and a great potential for hovering flight.
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