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R&D of Novel Revolving-Wing Helicopter
|摘要:||近半世紀以來，眾多工程師戮力於垂直起降飛行器的開發，發展出眾多取得升力的概念；然而除了尚在研發的X-32及X-35外，僅有Harrier、Forger及Osprey三種機型臻至成熟實用。現今投入垂直起降領域的團隊愈來愈多，Skycar、Xantus、SoloTrek XFV、Hawk 4、CarterCopter及BA609等新開發的機種，都有希望成為未來炫目的光彩。
In the recent century, many engineers made effort to develop the VTOL aircraft and concept to gain lift. Besides X-32 and X-35, only three types of VTOL aircraft, Harrier, Forger and Osprey, are considered to be mature and practical. Nowadays, more and more teams join the VTOL R&D field. The developments of Skycar, Xantus, SoloTrek XFV, Hawk 4, Cartercopter and BA609 will be spotlights in the future. Nevertheless, because of good lifting property of rotary wings, helicopters equipped with rotor are widely used VTOL aircraft. However, the rotor whose diame-ter often ranges between 7 up to even more than 30 meter presents high dashing risk and landing difficulties. Except the roof of building where fierce wind might buffet, it is hard to find the apron in a city. So it considerably weakens its original maneuver-ability. In search of real urban commuter aircraft, this research is oriented to develop a novel helicopter with revolving-wing, due to much reduced occupying space similar to a family car, it can easily land on a traditional standard 4m2m parking stall. With good lift/drag ratio of wing, it can gain considerable lift by overcoming relatively small drag. Also, we have developed highly reliable attack-angle controlling track for the revolving wing. Comparing with electric elements, this track has the advantage of nearly real-time response, too. Moreover, we make use of the sophisticated percussion theorem for designing the attack-angle controlling mechanism to reduce relevant vi-bration, also we considerably simplify the manufacturing process and associated mechanism complexity. Scanning through historic data, we can conclude that cur-rently only this type of novel revolving-wing helicopter will have a real potential of future urban commuter. This paper assimilates the historical experience to create the concept of revolving-wing helicopter and the ingenious design of revolving-wing mechanism, in the light, this paper has established a very good basis for future ad-vanced development of urban commuter aircraft.
|Appears in Collections:||機械工程學系所|
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