Variable Parameters for Simscape Thermal Mass

Hey guys,

I´m modelling a thermal system with Simscape in which the thermal mass of one of the components is changing after it reaches a certain amount of temperature (the material starts to burn). Because of that I need to change the mass parameter in the "Thermal Mass" block after a trigger temperature is reached.

My Problems are:

• I can´t define an array for the mass parameter. I would also accept that the loss of mass is like a step function (changing form 500g to 250g), if it´s not possile to define an array to describe it.
• I can´t connect the "Thermal Mass" block to a Simulink trigger signal, after which the loss of mass appears.

I would be very grateful, if anyone of you could help me out with these problems.

Best Regards

Cem

Answer 1

[Juan Sagarduy]

Hi Cem

Easiest is to create a custom component using the code in Thermal Mass. Then, make the parameter of mass an input instead.

At that point, you can feed any Simulink signal but a Simulink-PS Converter block is needed.

Cheers Juan

[Cem Sayilgan]

Thanks mate, did it exactly like that :)

[Juan Sagarduy]

I am glad I could help. BR Juan