Thread Subject:

Variable Parameters/coefficients

Hi,

I have a model with one subsystem. The subsystem consist of some transfer functions and gains. I would like the parameters/coefficients of transfer functions and gains be variable with time. As an clear example, one of the gains in the model is density. I want it to be a function of pressure which is a state variable in the model.
Is it also possible to have variable coefficients in nominator/denominator of transfer functions in the model?

thanks.

The built-in transfer function block only works for time invariant parameters.

You will need to make your own transfer function out of individual integrator, summation and product blocks.
One of the inputs to the product blocks needs to be a time varying signal that represents the time varying parameter values.

Phil.