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Double Pendulum

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This Demonstration shows the time evolution of a frictionless two-pendulum system. It is one of the simplest constructions that exhibit chaotic behavior.

Contributed by: Rob Morris (April 2007)
Open content licensed under CC BY-NC-SA

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Details

The green and blue masses, lengths, and angles are denoted by , respectively. The Lagrangian for the system works out to . The equations of motion are worked out in [1].

Reference

[1] Double Pendulum (Wolfram ScienceWorld)

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