Grasshopper

algorithmic modeling for Rhino

double pendulum harmonograph

does anyone know how to make a double pendulum harmonograph

x and y being the two pendulums

x(t) = A_1 \sin (tf_1 + p_1) e^{-d_1t} + A_2 \sin (tf_2 + p_2) e^{-d_2t}, \,\!

y(t) = A_3 \sin (tf_3 + p_3) e^{-d_3t} + A_4 \sin (tf_4 + p_4) e^{-d_4t}. \,\!

there is one out there that is a singular pendulum only.

like this: http://www.swantesson.com/harmonograph.html

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Replies to This Discussion

Permalink Reply by BR on June 9, 2014 at 6:26pm

this is only example...

eat-a-bug.blogspot.ch/2009/03/harmonograph.html

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