速報APP / 教育 / Double Double-pendulum

Double Double-pendulum

價格:免費

更新日期:2016-02-02

檔案大小:880k

目前版本:1.10

版本需求:Android 2.2 以上版本

官方網站:http://www.openpipeflow.org/index.php?title=Main_Page#Author

Email:ashleypwillis@gmail.com

Double Double-pendulum(圖1)-速報App

Double pendula side-by-side for demonstration of

- sensitivity to initial conditions (SIC),

- rate of divergence depends on the total energy of the system (Lyapunov exponent),

- existence and shadowing of periodic orbits (POs),

i.e. some fundamental properties of chaotic dynamics.

Slider sets and displays the magnitude of difference between the pendula,

Double Double-pendulum(圖2)-速報App

which increases as time progresses.

When viewing POs, the slider sets the maximum length of nearby POs displayed.

Drag pendulum to starting position, then press play.

If displaying POs, this will select a PO as an initial condition.

Slow-motion option in settings.

A clean and simple demonstration piece.

Double Double-pendulum(圖3)-速報App

(By the author of openpipeflow.org)

Double Double-pendulum(圖4)-速報App