微型飞行器可用于探测环境危害
文章来源:未知 文章作者:meng 发布时间:2010-09-16 00:51 字体: [ ]  进入论坛
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Air Force Office of Scientific Research-sponsored(赞助,发起) researcher, Dr. Robert Wood of Harvard University is leading the way in what could become the next phase of high-performance micro air vehicles for the Air Force. His basic research is on track(走上正规) to evolve into robotic, insect-scale devices for monitoring and exploration of hazardous1 environments, such as collapsed2 structures, caves and chemical spills.

"We are developing a suite3 of capabilities4 which we hope will lead to MAVs that exceed the capabilities of existing small aircraft. The level of autonomy(自治) and mobility5 we seek has not been achieved before using robotic devices on the scale of insects," said Wood.

Wood and his research team are trying to understand how wing design can impact performance for an insect-size, flapping-wing vehicle. Their insights will also influence how such agile6(敏捷的,机敏的) devices are built, powered and controlled.

"A big emphasis of our AFOSR program is the experimental side of the work," said Wood. "We have unique capabilities to create, flap and visualize7 wings at the scales and frequencies of actual insects."

The researchers are constructing wings and moving them at high frequencies recreating trajectories8(轨迹) similar to those of an insect. They are also able to measure multiple force components9, and they can observe fluid flow around the wings flapping at more than 100 times per second.

Performing experiments at such a small scale presents significant engineering challenges beyond the study of the structure-function relationships for the wings.

"Our answer to the engineering challenges for these experiments and vehicles is a unique fabrication technique we have developed for creating wings, actuators(制动器) , thorax(胸膛,胸腔) and airframe(机身) at the scale of actual insects and evaluating them in fluid conditions appropriate for their scale," he said.

They are also performing high-speed stereoscopic(立体的) motion tracking, force measurements and flow visualization10; the combination of which allows for a unique perspective on what is going on with these complex systems.



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1 hazardous Iddxz     
adj.(有)危险的,冒险的;碰运气的
参考例句:
  • These conditions are very hazardous for shipping.这些情况对航海非常不利。
  • Everybody said that it was a hazardous investment.大家都说那是一次危险的投资。
2 collapsed cwWzSG     
adj.倒塌的
参考例句:
  • Jack collapsed in agony on the floor. 杰克十分痛苦地瘫倒在地板上。
  • The roof collapsed under the weight of snow. 房顶在雪的重压下突然坍塌下来。
3 suite MsMwB     
n.一套(家具);套房;随从人员
参考例句:
  • She has a suite of rooms in the hotel.她在那家旅馆有一套房间。
  • That is a nice suite of furniture.那套家具很不错。
4 capabilities f7b11037f2050959293aafb493b7653c     
n.能力( capability的名词复数 );可能;容量;[复数]潜在能力
参考例句:
  • He was somewhat pompous and had a high opinion of his own capabilities. 他有点自大,自视甚高。 来自辞典例句
  • Some programmers use tabs to break complex product capabilities into smaller chunks. 一些程序员认为,标签可以将复杂的功能分为每个窗格一组简单的功能。 来自About Face 3交互设计精髓
5 mobility H6rzu     
n.可动性,变动性,情感不定
参考例句:
  • The difference in regional house prices acts as an obstacle to mobility of labour.不同地区房价的差异阻碍了劳动力的流动。
  • Mobility is very important in guerrilla warfare.机动性在游击战中至关重要。
6 agile Ix2za     
adj.敏捷的,灵活的
参考例句:
  • She is such an agile dancer!她跳起舞来是那么灵巧!
  • An acrobat has to be agile.杂技演员必须身手敏捷。
7 visualize yeJzsZ     
vt.使看得见,使具体化,想象,设想
参考例句:
  • I remember meeting the man before but I can't visualize him.我记得以前见过那个人,但他的样子我想不起来了。
  • She couldn't visualize flying through space.她无法想像在太空中飞行的景象。
8 trajectories 5c5d2685e0c45bbfa4a80b6d43c087fa     
n.弹道( trajectory的名词复数 );轨道;轨线;常角轨道
参考例句:
  • To answer this question, we need to plot trajectories of principal stresses. 为了回答这个问题,我们尚须画出主应力迹线图。 来自辞典例句
  • In the space program the theory is used to determine spaceship trajectories. 在空间计划中,这个理论用于确定飞船的轨道。 来自辞典例句
9 components 4725dcf446a342f1473a8228e42dfa48     
(机器、设备等的)构成要素,零件,成分; 成分( component的名词复数 ); [物理化学]组分; [数学]分量; (混合物的)组成部分
参考例句:
  • the components of a machine 机器部件
  • Our chemistry teacher often reduces a compound to its components in lab. 在实验室中化学老师常把化合物分解为各种成分。
10 visualization 5cb21f7c94235e860596a2dfd90ccf82     
n.想像,设想
参考例句:
  • In 2D visualization and drawing applications, vertical and horizontal scrolling are common. 在二维的可视化及绘图应用中,垂直和水平滚动非常普遍。 来自About Face 3交互设计精髓
  • Ophthalmoscopy affords the only opportunity for direct visualization of blood vessels. 检眼镜检查法提供直接观察血管的唯一机会。
TAG标签: air research aircraft
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