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24-Ruby IV
October 25, 2019
Question

Pendulum and Hook law

  • October 25, 2019
  • 2 replies
  • 1667 views

I once solved and animated this problem a long time ago - a pendulum with an elastic link. But I can not find this Mathcad 15 sheet. I began to create the calculation in a new way, but I do not understand where the error came from. Help me, please. See attach!

2 replies

24-Ruby IV
October 25, 2019

I have find the error myself!

But now an error is in the odesolve function!
Not correct but nice! A Big Apple of NYC!

Pendulum-Apple-1.gif

Pendulum-Apple-2.gif

Pendulum-Apple-3.png

 

 

 

24-Ruby IV
October 25, 2019

Nice too...

Pendulum-Tube.gif

24-Ruby IV
November 26, 2019

One solution with non linear Hook law.

Three types of energy: the sum is constant!

8-NL-Hook.png11-Energy.png