chaos pendulum
Chaos Pendula
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Chaos Pendula

 

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Alogo and Rott's Pendula

 

chaos pendulum, clamps

 

Chaos Hoop

Code Number: 3A95.50

Demo Title:  Chaos Pendula - Chaos Toys

Condition: Excellent

Principle: Potential to Kinetic Energy, Simple Harmonic Motion

Area of Study: Acoustics

Equipment: 

Chaos Pendulums, Double Planar Pendulum, Toy Pendulum Models, and Alogo Pendulum (Ring Pendulum).


Procedure:

 See also 3A95.50 in Oscillations/Acoustics. 

The double planar pendulum shows what the addition of another degree of freedom does to the behavior of a pendulum.  The chaos Pendula are designed so that you may go from one degree of freedom to 5 degrees of freedom in many different configurations, usually used for a deeper understanding of chaotic behavior.

The Alogo pendulum may be started with either the ring in the upward or the downward position by adding the proper counter weight.

The Rott's and modified Rott's pendula are very good demonstrations of chaos and transfer of energy between different parts of the pendulum.

References: 

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  • Douglas Oliver, "A Chaotic Pendulum", TPT, Vol. 37, #3, Mar. 1999, p. 174.
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  • Robert DeSerio, "Addendum: Lyapunov Exponent Calculation", CP- Ly 1.
  • Robert DeSerio, "Parts List for Chaotic Pendulum Experiment".
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