Friday, June 27, 2014

The Spherical Pendulum

The spherical pendulum is a generalized representation of the simple pendulum. The spherical pendulum is a 3-dimensional motion of a mass moving on the inner side of a sphere. Given an initial condition, the mass sets into motion and continues to do so in vacuum. The equations of motion for the spherical pendulum are given below.
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 New Picture (1)

 The Cartesian coordinates are obtained from:
 New Picture (2)

The initial conditions of Hairer, Norsett and Wanner were used with the above equations, and were solved using the Rosenbrock Triple.
 New Picture (3)

 The 2-D and the 3-D plots are shown below.

New Picture (4)



New Picture (5)

1 comment:

  1. […] pattern of the spherical pendulum motion appeared to get my wife’s attention as I was typing the previous post. And to the engineer in me, that struck as a bit odd, for there was nothing to be fascinated […]

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