Decorated, tapered, and highly nonlinear granular chain
Decorated, tapered, and highly nonlinear granular chain
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DOI：
10.1103/physrevlett.97.155502
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发表时间：
2006-10-13
影响因子：
8.6
通讯作者：
Sen, Surajit
中科院分区：
文献类型：
--
作者：
Doney, Robert;Sen, Surajit
已经看到，一维颗粒链中的惯性失配导致显著的能量吸收，其随着球的数目N和锥形q而增加。然而，短链在这方面是有限的，因此我们提出了一种解决方案，大大提高了任何大小的链的性能。这些强非线性和可扩展的系统具有令人惊讶的复杂动力学和不充分的硬球近似表示。此外，这种系统具有作为沿链条沿着的位置的函数而变化的减震能力。在这封信中，我们提出的结果的形式归一化的动能图，以说明令人印象深刻的缓解能力的原始和改进的锥形链。
It has been seen that inertial mismatches in 1D granular chains lead to remarkable energy absorption which increases with the number of spheres, N, and tapering, q. Short chains, however, are limited in that regard, and we therefore present one solution which greatly improves performance for any size chain. These strongly nonlinear and scalable systems feature surprisingly complicated dynamics and are inadequately represented by a hard-sphere approximation. Additionally, such systems have shock absorption capacities that vary as a function of position along the chain. In this Letter, we present results in the form of normalized kinetic energy diagrams to illustrate the impressive mitigation capability of both original and improved tapered chains.