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当前位置: Science » 技术 » Science子刊:美科学家研发机器蝙蝠


摘要 : 2017年2月1日,国际顶尖学术期刊《Science》旗下《Science Robotics》杂志上在线发表了美国伊利诺大学香槟分校Alireza Ramezani研究员的一篇研究成果,研究人员报告他们模仿蝙蝠的生理结构,用新型材料制造出了这种机器蝙蝠。

2017年2月1日,国际顶尖学术期刊《Science》旗下《Science Robotics》杂志上在线发表了美国伊利诺大学香槟分校Alireza Ramezani研究员的一篇研究成果,研究人员报告他们模仿蝙蝠的生理结构,用新型材料制造出了这种机器蝙蝠。它体型较小,重约93克,翼展约47厘米,能够像蝙蝠一样飞翔。





A biomimetic robotic platform to study flight specializations of bats


Bats have long captured the imaginations of scientists and engineers with their unrivaled agility and maneuvering characteristics, achieved by functionally versatile dynamic wing conformations as well as more than 40 active and passive joints on the wings. Wing flexibility and complex wing kinematics not only bring a unique perspective to research in biology and aerial robotics but also pose substantial technological challenges for robot modeling, design, and control. We have created a fully self-contained, autonomous flying robot that weighs 93 grams, called Bat Bot (B2), to mimic such morphological properties of bat wings. Instead of using a large number of distributed control actuators, we implement highly stretchable silicone-based membrane wings that are controlled at a reduced number of dominant wing joints to best match the morphological characteristics of bat flight. First, the dominant degrees of freedom (DOFs) in the bat flight mechanism are identified and incorporated in B2’s design by means of a series of mechanical constraints. These biologically meaningful DOFs include asynchronous and mediolateral movements of the armwings and dorsoventral movements of the legs. Second, the continuous surface and elastic properties of bat skin under wing morphing are realized by an ultrathin (56 micrometers) membranous skin that covers the skeleton of the morphing wings. We have successfully achieved autonomous flight of B2 using a series of virtual constraints to control the articulated, morphing wings.

来源: Science Robotics 浏览次数:1


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