Scientists at the University of Washington have created a new shock absorption meta material that uses origami to completely absorb a hard impact and transform that crushing force into a gentle pull.
华盛顿大学的科学家们创造了一种新的减震元材料，它利用折纸来完全吸收冲击力，并将冲击力转化为轻柔的拉力。
According to one of the research authors—UW associate professor of aeronautics and astronautics Jink yu Yang—”if you were wearing a football helmet made of this material and something hit the helmet, you’d never feel that hit on your head.” In fact, by the time the impact energy reaches you, he says, it has been transformed from a crushing push to alight pull.
该研究报告的作者之一、华盛顿大学航空航天副教授Jink yu Yang说:“如果你戴着用这种材料制成的足球头盔，有什么东西击中了头盔，你永远不会感觉到它击中了你的头部。事实上，当撞击能量到达你的时候，他说，它已经从一个压碎的推力变成了一个点燃的拉力。“Meta materials are like Lego,” Yang said in a press release. “You can make all types of structures by repeating a single type of building block, or unit cell as we call it. Depending on how you design your unit cell, you can create a material with unique mechanicalproperties that are unprecedented in nature.”
“元材料就像乐高积木，”杨在一份新闻稿中说。他说:“你可以通过重复一个单一类型的积木，或者我们所说的单元格，来制造所有类型的结构。取决于你如何设计你的单元格，你可以创造出一种具有独特力学性能的材料，这在自然界是前所未有的。”
The UW research—published in the journal Science Advances—got inspiration from origami to create 20 of these flexible unit cells, using a laser-cutting plotter to create physical models of a geometric shape they developed using computer simulations.
华盛顿大学的这项研究发表在《科学进展》(Science advancancs)杂志上。该研究从折纸中得到灵感，使用激光切割绘图仪创建他们使用计算机模拟开发的几何形状的物理模型。
Then they put together the segments in a long truss. Each of the segments in the metamaterial then acts as a “folding crease,” which has the capability of softening an impact as it travels through the truss. In fact, as the shock advances through each segment, the segment before it bounces part of the energy back, pulling the next segment until the chain eventually dissipates the push force generating a soft draw instead.
然后他们把这些部分放在一个长桁架上。超材料中的每一段都充当着“折叠折痕”的角色，当它穿过桁架时，具有软化冲击力的能力。事实上，当冲击通过每个区段前进时，区段在其反弹之前将部分能量反弹，拉动下一个区段直到链条最终消散推力而产生下一个软拉。
In the future, the system could be used to soften the landing of packages delivered by drones. The system could also be used in car bumpers to soften the impact of car accidents and, according to Yang, save lives.
在未来，该系统可以用来软化无人机投递包裹的着陆。杨表示，该系统还可以用于汽车保险杠，以减轻车祸的影响，挽救生命。
------扇贝阅读（2019-05-28）
absorption n. 吸收；全神贯注，专心致志
origami 折纸
aeronautics n. 航空学；飞行术
alight adj. 烧着的；点亮着的 vi. 下来；飞落
unprecedented adj. 空前的；无前例的
mechanical adj. 机械的；力学的；呆板的；无意识的；手工操作的
geometric adj. 几何学的；[数] 几何学图形的
simulations. 模拟
segments n. 片段；段数（segment的复数）；积弓形片模型
v. 把…分割成段；细胞分裂（segment的三单形式）
metamaterial n. 超材料
dissipates vt. 浪费；使…消散 vi. 驱散；放荡
bumpers n. 缓冲器（bumper的复数）；[车辆] 保险杆；碰撞杠
shock absorption meta material 减震超材料
a hard impact=crushing force 冲击力
associate professor 副教授
in a press release 在新闻稿中
building block 积木；基本构成要素
unit cell 单元格
a laser-cutting plotter 一个切割机绘图仪
by drones 无人驾驶飞机
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