Double Pendulum With Elastic Rods Model DocumentsThis material has 2 associated documents. Select a document title to view a document's information. Main DocumentDouble Pendulum With Elastic Rods Model
written by
Tom Dooling
The Double Pendulum With Elastic Rods Model shows two massless rods each with a different length. At the end of each rod is mass, m1; and m2. The user can vary the lengths of the rods and values of the masses within the simulation. A velocity dependent resistance can also be added by adjusting a drag variable in the simulation. In this simulation, the rods are modeled as very stiff springs. If the rod gets longer or shorter than its rest length, a very strong force drives it back to its rest length. The spring constant for each rod is 1.0E+7 N/m. In a sense, this is what happens in a real double pendulum. A real physical rod pulls or pushes back to its rest length under tension or compression. There is also a drag force that is linearly dependent on the velocity vector. The drag constant determines the strength of the drag force. Initially the drag is set to zero.
Published January 12, 2013
This file has previous versions. Source Code DocumentsDouble Pendulum With Elastic Rods Source CodeThe source code zip archive contains an XML representation of the Bead on a Double Pendulum With Elastic Rods Model. Unzip this archive in your EJS workspace to compile and run this model using EJS.
Last Modified January 12, 2013
