Analysis of a simple nonlinear oscillating system
This demonstration stand shows a dependence of the velocity of a mass on a nonlinear spring. There are a few nonlinear equations that can be selected in "Configuration" window.
If you want to define your own non-linear spring, use "Add" button at the bottom of the program frame. To the right of the button you can set the parameters of the spring in the format, where is the coefficient of a nonlinear term, is the degree of nonlinearity. Each term of the equation is displayed as a button. By clicking the button you can remove a part of the equation.