Scientists are inspired by cockroaches to develop flexible robots or can be used for disaster relief-www.gdosta.org.cn

Scientists inspired by cockroaches developed flexible robots or can be used for the relief of the University of California Berkeley researchers have cockroaches "inspired", the latest development of a flexible robot, can reduce the compressive strength and stature, drill into the gap in the future might be used in disaster detection. Cockroaches are known as "small cockroach", partly due to its strong vitality. Cockroaches are 900 times the weight of the body in laboratory tests, but they are not injured. University of California at Berkeley professor of integrative biology Robert · full 25 years ago observed that American cockroach species speed can reach close to 1.5 meters per second, equivalent to 50 times its body length. A full hosted in the school laboratory, called "multidisciplinary mobile animal efficacy, kinetic and mechanical laboratory", over the years to observe cockroaches, and house lizard and other animal crab walking, running and jumping, crawling, sliding and other methods, the basic principle of their motion process contains biological force, in order to improve the design of the robot. American cockroach let Dr. Hiker · in the lab. Dr. Jayaram got inspiration. High speed camera footage of cockroaches in between two pieces of "splint", when the interval of about 1.27 cm, and the deck height equal, cockroach free walking is 0.6 cm; interval adjustment, far below the height, the cockroach still full speed; when the interval is only 0.25 cm, they will squeeze their bodies between the splints, forced through. Jaya Rahm believes that in the narrow space or crevice, cockroach legs towards the limit by, can not function properly, have to use other parts of the body move. Specifically, in the squeezed state, with a perception of cockroach tibial spines, with splint friction, push yourself. On the basis of these observations, Jayaram designed the robot, named "compressible with movable joint structure of robot" (CRAM), and the size of the palm of your hand, by pressing "legs" can be open to both sides. But, compared with cockroaches, the robot is much less compressed, the height can only be reduced to half of the normal height. Fabrication of this robot is similar to origami, simple and low cost, by the University of California at Berkeley under a business making kit, for self assembling robot lovers. Jaya Rahm and Darfur in the United States "National Academy of Sciences" published a paper, in tornadoes, earthquakes and explosions and other occasions, the vast majority of existing robots cannot enter the ruins, and the flexible robot can pass unimpeded, to help ascertain the regional stability and security, the location of the survivors, rescue workers into the path to determine. The fur that insects can be said to be omnipresent, "the most successful animal on earth", from insects can make robots possess the similar ability; reference Cockroach Robot is just a prototype, it shows a new direction of development along the feasibility of flexible robots.

科学家受蟑螂启发研制柔性机器人 或可用于救灾   美国加利福尼亚大学伯克利分校研究人员受到蟑螂“启发”,最新研制了一种柔性“机器人”,可抗压、降低身形、钻入缝隙,今后或许可以用于救灾探测。   蟑螂之所以获称“小强”,部分源于其极强的生命力。蟑螂在实验室测试中受力相当于体重900倍,却不会受伤。加州大学伯克利分校综合生物学教授罗伯特·富尔25年前观察发现,美洲种属蟑螂的行进速度能达到每秒近1.5米,相当于其身体长度的50倍。   富尔在学校主持一间实验室,名为“多学科动物移动效能、动能和力学实验室”,历年观察蟑螂、螃蟹和壁虎等动物行走、奔跑、跳跃、爬行、滑行等方式,探究它们运动过程所蕴含的生物力学基本原理,以求改善机器人设计。   美洲蟑螂让在这间实验室攻读博士的考希克·贾亚拉姆获得灵感。高速摄像机拍下的画面显示,蟑螂身处两块“夹板”之间,当甲板间隔大约1.27厘米、与“身高”相当时,蟑螂自由行走;间隔调整为0.6厘米、远低于身高时,蟑螂依然全速行进;当间隔仅为0.25厘米,它们会在夹板之间挤压自己的身体,强行通过。   贾亚拉姆认为,在狭小空间或缝隙内,蟑螂的腿脚受朝向限制,无法正常发挥作用,移动时不得不利用身体其他部位。具体而言,处于受挤压状态时,蟑螂凭借胫节上带有感知能力的刺毛,与夹板摩擦,推动自己。   依据这些观察,贾亚拉姆设计机器人,定名为“可压缩带活关节构造机器人”(CRAM),尺寸与人的手掌相当,受到上下挤压时“腿脚”可以向两侧张开。   只是,与蟑螂相比,这一机器人受挤压能力大为逊色,高度只能降低至正常“身高”的一半。   这种机器人的制作工艺类似于手工折纸,简单且成本低廉,目前由加州大学伯克利分校下属一家企业制作成套件,供机器人爱好者自行组装。   贾亚拉姆和富尔在美国《国家科学院学报》发表论文称,在龙卷风、地震和爆炸等场合,现有绝大多数机器人无法进入废墟,而柔性机器人可通行无阻,帮助探知所处区域是否稳定和安全,发现幸存者所在位置,确定救援人员进入路径。   富尔说,昆虫无所不在,可以说是地球上“最成功的动物”,借鉴昆虫可以让机器人具备类似的能力;借鉴蟑螂的机器人只是原型,却显示沿着一个新方向开发柔性机器人的可行性。相关的主题文章: