旋转圆环上的珠子:一个简单但功能丰富的动力系统
Bead on a rotating circular hoop: a simple yet feature-rich dynamical system
摘要:
利用初等微积分和简单的对称性论证研究了珠子在旋转圆环上的运动。提出了在不同转速的铁环的珠的特殊轨迹。研究了相图和不动点的性质。观察到分叉与箍的旋转速度的变化。在临界转速的箍,出现了一个有趣的关系之间的时间周期和振幅的振荡珠。本研究介绍了非线性动力学的几个重要方面。适合于对初等微积分和经典力学有基本了解的学生。
英文摘要:
The motion of a bead on a rotating circular hoop is investigated using elementary calculus and simple symmetry arguments. The peculiar trajectories of the bead at different speeds of rotation of the hoop are presented. Phase portraits and nature of fixed points are studied. Bifurcation is observed with change in the rotational speed of the hoop. At a critical speed of rotation of the hoop, there appears an interesting relation between the time period and amplitude of oscillation of the bead. The study introduces several important aspects of nonlinear dynamics. It is suitable for students having basic understanding in elementary calculus and classical mechanics.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。