美雷霆无人机首飞 2018可部署

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美雷霆无人机首飞 2018可部署

2016年04月19日 12:02  台湾中国时报  杨幼兰



它看来有如一架先进的双翼飞机,但能如直升机般垂直起降,最快能从2018年起进行战略部署。

负责为美国国防高等研究计画署(DARPA)研发雷霆(LightningStrike)无人机的极光飞行科学(Aurora Flight Sciences)公司18日宣佈,这款拥有24个风扇的1/5原型无人机,已于3月29日成功试飞。

而这项无人机技术若是成功,未来将能应用在如直升机等多数旋翼机上,充分发挥垂直起降及省油的优点。

据《全球飞行》(FlightGlobal)网站与《每日邮报》(Daily Mail)报导,全尺寸的雷霆无人机可望于两年内服役,最快时速可达741公里,并能节省60-75%的燃料。

设计同时採用了飞机的固定翼技术,以及直升机的旋翼技术,雷霆拥有两个大尾翼,还有两个较小的前翼。

而机身上的涡轴发动机,则能提供4,000马力的动力。发动机可驱动24个导管风扇,两个机翼上各有9个风扇,而前翼内则各有三个。

这款无人机不挑起降地,能高速飞行、盘旋。

极光飞行科学的技术长柯兰希(Tom Clancy)指出,雷霆无人机的分佈式电力推进系统应用了创新技术。

在缩小版的原型雷霆机上,无论是机翼或前翼结构,都应用了碳纤维与3D 列印熔融挤製成型(Fused Deposition Modeling,FDM)塑料,好在将重量降至最低的情况下,形成极複杂的结构与气动面。

极光飞行科学将运用DARPA提供的8940万美元(约29亿台币)继续进行研发,而全尺寸无人机将于2018年左右开始试飞。DARPA指出,雷霆无人机将挑战极限,结合飞机的速度,以及直升机的灵活度。

儘管展示的概念是无人机,但极光飞行科学公司指出,这项技术可以轻易应用在载人飞机上。

(中时电子报)


http://www.chinatimes.com/realtimenews/20160419003364-260417
台湾中国时报 美雷霆无人机首飞 2018可部署

2016年04月19日 12:02  台湾中国时报  杨幼兰

雷霆無人機結合了飛機的速度與直升機起降的靈活性.jpg (26.04 KB, 下载次数: 5)

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2016-4-21 05:41 上传


雷霆垂直起降無人機試飛的畫面。.jpg (18.04 KB, 下载次数: 5)

下载附件 保存到相册

2016-4-21 05:41 上传



它看来有如一架先进的双翼飞机,但能如直升机般垂直起降,最快能从2018年起进行战略部署。

负责为美国国防高等研究计画署(DARPA)研发雷霆(LightningStrike)无人机的极光飞行科学(Aurora Flight Sciences)公司18日宣佈,这款拥有24个风扇的1/5原型无人机,已于3月29日成功试飞。

而这项无人机技术若是成功,未来将能应用在如直升机等多数旋翼机上,充分发挥垂直起降及省油的优点。

据《全球飞行》(FlightGlobal)网站与《每日邮报》(Daily Mail)报导,全尺寸的雷霆无人机可望于两年内服役,最快时速可达741公里,并能节省60-75%的燃料。

设计同时採用了飞机的固定翼技术,以及直升机的旋翼技术,雷霆拥有两个大尾翼,还有两个较小的前翼。

而机身上的涡轴发动机,则能提供4,000马力的动力。发动机可驱动24个导管风扇,两个机翼上各有9个风扇,而前翼内则各有三个。

这款无人机不挑起降地,能高速飞行、盘旋。

极光飞行科学的技术长柯兰希(Tom Clancy)指出,雷霆无人机的分佈式电力推进系统应用了创新技术。

在缩小版的原型雷霆机上,无论是机翼或前翼结构,都应用了碳纤维与3D 列印熔融挤製成型(Fused Deposition Modeling,FDM)塑料,好在将重量降至最低的情况下,形成极複杂的结构与气动面。

极光飞行科学将运用DARPA提供的8940万美元(约29亿台币)继续进行研发,而全尺寸无人机将于2018年左右开始试飞。DARPA指出,雷霆无人机将挑战极限,结合飞机的速度,以及直升机的灵活度。

儘管展示的概念是无人机,但极光飞行科学公司指出,这项技术可以轻易应用在载人飞机上。

(中时电子报)


http://www.chinatimes.com/realtimenews/20160419003364-260417
台湾中国时报
2016-4-21 05:44 上传



“This VTOL X-plane won’t be in volume production in the next few years but is important for the future capabilities it could enable,” Bagai said. “Imagine electric aircraft that are more quiet, fuel-efficient and adaptable and are capable of runway-independent operations. We want to open up whole new design and mission spaces freed from prior constraints, and enable new VTOL aircraft systems and subsystems.” Bagai added that while the technology demonstrator would be unmanned, the technologies that VTOL X-Plane intends to develop could apply equally well to future manned aircraft.



Aurora’s Phase 2 ‘LightningStrike’ design for VTOL X-Plane (VXP) envisions an unmanned aircraft with two large rear wings and two smaller winglets (canards) mounted near the nose of the aircraft. The unmanned aircraft will use the Rolls-Royce AE 1107C turboshaft engine that would power three Honeywell generators, providing a generator delivering 3 megawatts (4,000 horsepower) of electrical power, driving 24 ducted fans.

The aircraft’s electric distributed propulsion (EDP) system would consist of highly integrated, distributed ducted fans that, combined with the synchronous electric drive system, would enable the design’s potentially revolutionary hover efficiency and high-speed forward flight. 18 of these electrically-driven propellers will be tucked in the main wings (nine ducts on each wing) and three inside each canard. Both the wings and the canards would rotate, to direct fan thrust as needed: rearward for forward flight, downward for hovering and at angles during transition between the two, also allowing the aircraft to rotate or reverse. Each rotor will be controlled separately, enabling the aircraft to maneuver and position itself in flight and hovering with maximum efficiency.

The DARPA technology demonstrator’s flight control system (FCS) builds on the heritage of Aurora’s Centaur and Orion optionally manned and unmanned aircraft platforms. The FCS system runs on a triplex-redundant design to ensure detection and correction of flight anomalies in both vertical and forward flight. The brushless electric motors are supplied by ThinGap the wing fans use 100 kW constant-speed motors and 70 kW for the canard fans. Thrust is controlled by varying blade pitch.

The new hybrid propulsion concept is expected to raise the aircraft hover efficiency from 60 percent to at least 75 percent; with cruise lift-to-drag ratio doubled from 5-6 to more than 10, the new design is expected to achieve top sustained flight speed of 300 – 400 kt. Efficiency will also translate to higher payload carrying capacity – the vehicle, projected to weigh 10,000-12,000 pounds (4,535 – 5,443 kg) will be able to haul nearly 3,000 pounds of useful payload (1.5 tons).


http://defense-update.com/20160303_vtol_x_plane.html

又是固定翼又是旋翼,鱼鹰老是往下掉的事还没吸取教训?
又是固定翼又是旋翼,鱼鹰老是往下掉的事还没吸取教训?
干嘛这么说,技术是要不断进步的嘛
科学实验的先驱,鼓掌
会飞会作战的机器人,美帝应该把车和船的功能也加上。
又是固定翼又是旋翼,鱼鹰老是往下掉的事还没吸取教训?
满清吸取了火药枪炸膛的教训。
xmyyc 发表于 2016-4-21 07:50
干嘛这么说,技术是要不断进步的嘛
所以装无人机上了,摔下来摔不死人就没事。。。。
造型很别致啊
为什么气动外形设计成这个样子
看上去萌萌哒的样子
来自: 手机APP客户端
空气动力学!
你肿么了?
醒醒啊!
醒醒啊!
醒醒啊!