悬棒运动中的拍频以及张力突变现象——兼谈来自课本的研究性  

Beat phenomenon and abrupt change in tension in the motion of a hanging rod ——With a brief reference to investigation on textbook materials

作　　者：周雨青[1] 刘甦[1] 董科[1] 

机构地区：[1]东南大学物理系,江苏南京211189

出　　处：《大学物理》2013年第6期21-23,共3页College Physics

摘　　要：拓展一道基础训练题的内容,对其非线性效应中的"非典型"拍频现象和"突变张力"点进行了研究.就其出现的成因和导致的结果作了初步分析,通过模拟计算阐明原力学模型不够完善的地方.We extend a simple exercise in a textbook and find rich physical information by studying nonlinear effect of the system under consideration. The non-typical beat phenomenon and the abrupt change in tension are the most noteworthy results. We analyze these results, investigate the factors that lead to them and point out the drawbacks of the original model through simulating calculations.

关 键 词：悬棒 非线性 拍频 张力突变 

分 类 号：O313[理学—一般力学与力学基础]