Job Stéphane, Melo Francisco, Sokolow Adam, Sen Surajit
Departamento de Física, Universidad de Santiago de Chile, and Center for Advanced Interdisciplinary Research in Materials (CIMAT), Av. Ecuador 3493, Casilla 307, Correo 2, Santiago de Chile.
Phys Rev Lett. 2005 May 6;94(17):178002. doi: 10.1103/PhysRevLett.94.178002. Epub 2005 May 3.
We perform measurements, numerical simulations, and quantitative comparisons with available theory on solitary wave propagation in a linear chain of beads without static preconstraint. By designing a nonintrusive force sensor to measure the impulse as it propagates along the chain, we study the solitary wave reflection at a wall. We show that the main features of solitary wave reflection depend on wall mechanical properties. Since previous studies on solitary waves have been performed at walls without these considerations, our experiment provides a more reliable tool to characterize solitary wave propagation. We find, for the first time, precise quantitative agreements.
我们对无静态预约束的线性珠子链中的孤立波传播进行测量、数值模拟，并与现有理论进行定量比较。通过设计一种非侵入式力传感器来测量沿链传播的脉冲，我们研究了孤立波在壁面处的反射。我们表明，孤立波反射的主要特征取决于壁面的力学性质。由于先前对孤立波的研究是在未考虑这些因素的壁面条件下进行的，我们的实验为表征孤立波传播提供了一个更可靠的工具。我们首次发现了精确的定量一致性。
