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发表于 2012-6-17 15:48:35 | 显示全部楼层 |阅读模式

1. The bird wing, the ideal

Naturally, the great archetype for technical flapping wings is the living bird wing. His great effectiveness due to his manifold possibilities to move purposeful and to change the shape will certainly be unobtainable in aero modelling for a long time. This is also true for his weight distribution and his sensor technology.

  1.gif

 

In this drawing by K. Herzog the anatomic subdivision of the bird's wing in arm- and hand section is pictured. It can also to be used advantageously when describing technical flapping wings. The longitudinal parts of these wing sections are rather different depending on bird species. Generally the bionics of the bird wing is very interesting (please take a look at external link 1).


2. Membrane flapping wings

Application range

Membrane flapping wings especially are changing the chamber direction in the hand wing section according to the flapping direction. This way, they can produce much thrust and achieve steep climbing flights (Flying with Thrust). But up to now they are less suited for gliding flights and for flying with lift.






  9.jpg

.weight

.wing span

.cane spar

.covering

.ceiling

.3.1 kg

.2 m

.linen

.10-15m

.[109 oz]

.[79 in]

.[394-590 in]








3. Profiled flapping wings

Application range

Profiled flapping wings or double-sided covered wings may work with a very high efficiency. With their mostly relatively low flapping frequency and the small operating range of lift coefficient of a simple airfoil not much thrust can be produced. Not, at least, if the full lift must be generated concurrently (flying with lift). Therefore, profiled flapping wings are suited especially for a level flight, the gently inclined climbing flight and of course for changing to gliding flight.











In the essay Flapping Wing Designs (in German, PDF 1.8 MB, version 2.3, 2008) additional information about these flapping wing designs can be found.

In conjunction with the EV-models developed flapping wings are to find on site: Articulated flapping wings

 

 

原文地址:http://www.ornithopter.de/english/wings.htm

[此贴子已经被作者于2012-6-17 17:23:04编辑过]
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匿名  发表于 2012-6-17 17:28:43
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发表于 2012-6-22 22:47:07 | 显示全部楼层

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发表于 2012-12-9 10:39:55 | 显示全部楼层
太帅了,支持!!!
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发表于 2013-2-1 19:07:01 | 显示全部楼层
]比较详细
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匿名  发表于 2013-2-15 16:58:38
好东西
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发表于 2013-3-22 11:09:41 | 显示全部楼层
顶楼主!!
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发表于 2013-4-19 23:26:03 | 显示全部楼层

楼主见过对拍扑翼吗,而且机翼是两自由度的,沉浮的同时还要扭转。谢了!

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匿名  发表于 2013-5-1 01:01:11
我在研究载人的,努力中。谢楼主
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发表于 2013-5-25 21:06:59 | 显示全部楼层
先顶一个
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