论文标题
外部驱动的纳米级梁的动力学，该纳米级束在高张力下并浸入粘性流体
The dynamics of an externally driven nanoscale beam that is under high tension and immersed in a viscous fluid
论文作者
论文摘要
我们探索纳米级双斜梁的动力学，该光束处于高张力下，沉浸在粘性流体中，并由空间变化的驱动力在外部驱动。我们开发了一个理论描述，该描述对于所有可能的张力值有效，包括梁的较高模式的运动，并解释了谐波力，该谐波力在其末端附近的梁的有限空间区域上应用。我们将我们的理论预测与对电热驱动并沉浸在空气和水中的纳米级束的实验测量进行了比较。理论预测与实验表现出良好的一致性，并证明了简化的字符串近似的有效性。
We explore the dynamics of a nanoscale doubly-clamped beam that is under high tension, immersed in a viscous fluid, and driven externally by a spatially varying drive force. We develop a theoretical description that is valid for all possible values of tension, includes the motion of the higher modes of the beam, and accounts for a harmonic force that is applied over a limited spatial region of the beam near its ends. We compare our theoretical predictions with experimental measurements for a nanoscale beam that is driven electrothermally and immersed in air and water. The theoretical predictions show good agreement with experiment and the validity of a simplified string approximation is demonstrated.
