MATLAB: How to solve Differential Equation in Simulink Model

deferential equationsimulink

Hi, How to write this model into simulink :
{ dv/dt = -4.5 – 0.42v – 0.334v^2 }
 I was unable how to write when model include 0.334v^2.
 Someone pls help me.
 tq...

Best Answer

Use the Math Function block, and select square as the function. Once you have calculated dv/dt, you can then use the integrator block to calculate v and feed it back to the RHS of the equation.
HTH,
Arnaud
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