【作者】 骆子喻； 张雷锋； 鲍德松；

【Author】 LUO Zi-yu,ZHANG Lei-feng,BAO De-song (Physics Department,Zhejiang University,Hangzhou 310027,China)

【机构】 浙江大学物理系；

【摘要】 本文主要采用实验方法研究打结颗粒链在外部激振下解结过程与激振源以及颗粒链长度的关系。实验结果表明颗粒链结解开所需的时间与振动频率有关,颗粒链解结存在一截止频率和一个最佳振动频率;颗粒链解结时间与链长之间呈非线性关系。同时采用Monte-Carlo时步模拟的方法,对珠链解结的动力学模型进行仿真。更多还原

【Abstract】 We tried to reveal the relation between the vibrated granular chain and its unknotting process by experiment in our research.It turns out that the time for unknotting relies on the frequency of vibration,with a cut-off frequency and most efficient unknotting frequency proposed.As to the nonlinear relation between the length of granular chain and unknotting time, we adopted Monte-Carlo calculation to simulate the dynamic process.更多还原