小柯机器人

美国加州大学圣芭芭拉分校Elliot W. Hawkes等研究人员发现，工程化跳跃者可通过功倍增克服生物极限。2022年4月27日出版的《自然》杂志发表了这一最新研究成果。

Author: Hawkes, Elliot W., Xiao, Charles, Peloquin, Richard-Alexandre, Keeley, Christopher, Begley, Matthew R., Pope, Morgan T., Niemeyer, Gnter

Issue&Volume: 2022-04-27

Abstract: For centuries, scientists have explored the limits of biological jump height1,2, and for decades, engineers have designed jumping machines3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18 that often mimicked or took inspiration from biological jumpers. Despite these efforts, general analyses are missing that compare the energetics of biological and engineered jumpers across scale. Here we show how biological and engineered jumpers have key differences in their jump energetics. The jump height of a biological jumper is limited by the work its linear motor (muscle) can produce in a single stroke. By contrast, the jump height of an engineered device can be far greater because its ratcheted or rotary motor can ‘multiply work’ during repeated strokes or rotations. As a consequence of these differences in energy production, biological and engineered jumpers should have divergent designs for maximizing jump height. Following these insights, we created a device that can jump over 30metres high, to our knowledge far higher than previous engineered jumpers and over an order of magnitude higher than the best biological jumpers. Our work advances the understanding of jumping, shows a new level of performance, and underscores the importance of considering the differences between engineered and biological systems.

DOI: 10.1038/s41586-022-04606-3

Source: https://www.nature.com/articles/s41586-022-04606-3

Nature：《自然》，创刊于1869年。隶属于施普林格·自然出版集团，最新IF：69.504
官方网址：http://www.nature.com/
投稿链接：http://www.nature.com/authors/submit_manuscript.html