How do i model differential equations in simulink that are not time dependent ?

I want to model a second order differential equation which is space dependent but the integrator box is "continous time integrator". Also, I haven't been able to find any article on modelling space dependent function.

This is the equation I wish to model.

Ui is velocity

Y is the y coordinate axis of direction of movement ( value goes from -1 to 1)

Rest all are constants.

Answer 1

[Sulaymon Eshkabilov]

Hi,

Yes, it is possible to solve this type of ODEs in SImulink. Here is the solution model attached.

Note that the simulation time has to be set start time at: -1 and end time at: 1

The simulation time can be adjusted according to your given problem statements with: [Ctrl]+[E] or [Model Configuration Parameters] -> [Simulation Time].

Your contant values can be specified in the MATLAB Workspace, or within the Gain blocks, or [File]->[Model properties] -> [Callbacks] ->[InitFcn].

Good luck.