论文标题
主动固体中的集体驱动之间的张力控制切换
Tension-controlled switch between collective actuations in active solids
论文作者
论文摘要
最近在活性固体中的集体致动的发现，即带有活性单元的固体，为具有真正的自主权的多功能材料开辟了道路。在这样的系统中，集体动态自发地出现，对控制或驱动它们的方式知之甚少。在这里，我们结合了厘米模型活性固体，基于代理模型的数值研究和理论参数的实验研究，以揭示机械张力如何作为在主动固体中不同集体驱动方案之间切换的一般机制。当在来回机械张力变化时，我们进一步显示了滞后的存在，强调了集体驱动的非平凡选择性。
The recent finding of collective actuation in active solids, namely solids embedded with active units, opens the path towards multifunctional materials with genuine autonomy. In such systems, collective dynamics emerge spontaneously and little is known about the way to control or drive them. Here, we combine the experimental study of centimetric model active solids, the numerical study of an agent based model and theoretical arguments to reveal how mechanical tension can serve as a general mechanism for switching between different collective actuation regimes in active solids. We further show the existence of a hysteresis when varying back and forth mechanical tension, highlighting the non-trivial selectivity of collective actuations.
