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Circumnavigating Pendulum Model

It displays the dynamics of a mechanical oscillator in uniform circular motion.


Last Week downloads: 0
Total downloads: 110
  • Last Updated: Nov 8, 2010
  • License: Freeware Free
  • OS: Windows XP/2000/98
  • Requirements: Java Runtime Environment1.4 or higher

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For Circumnavigating Pendulum Model Publisher's description


Circumnavigating Pendulum Model is a Photo & Image software developed by Cleon Teunissen. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Circumnavigating Pendulum Model:

BSEditor: This simulation models the dynamics of a setup where the point of attraction of a mechanical oscillator is in uniform circular motion. The mechanical oscillator is free to MOVE in two directions

A mechanical oscillator is affected if it is in circumnavigating motion. The dynamics of this 2-dimensional model is also at play in the case of the Foucault pendulum. More precisely: This 2-dimensional simulation displays all the dynamical features of the Foucault pendulum, except for the dependency of the Foucault pendulum precession on latitude.

The simulation shows simultaneously the motion with respect to the inertial coordinate system, and the motion as seen from a co-rotating point of view. For the co-rotating view there is a close-up view and an overview.

The input fields
Distance to center. When distance to center is set to zero the simulation simplifies to the case of a standard conical pendulum.
Starting amplitude. The distance to the point of attraction at the start of the simulation run.
Tangent velocity. This is velocity relative to the inertial system. The simulation adjusts this value automatically to effect a release from co-rotating motion. You can change this value, but the change will be undone when for example the button 'Reset view' is used.
Rotation rate. To explore other ratio's of rotation to vibration.
Vibration rate. The Default value of 4 is about the maximum; with a vibration rate of10 the calculation is visibly inaccurate.

Close-up size. The simulation automatically adopts the value that is in the 'Starting amplitude' field, but you can zoom in or zoom out by changing the close-up size
Close-up shift. To center the close-up view.

Rotation Related Models:

The following EJS models show various aspects of the physics of rotation:
Inertial Oscillation
Great Circles
Circumnavigating Pendulum
Foucault Pendulum
Foucault Rod
Ballistics and orbits
Angular acceleration of a contracting system
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