SIMULINK

Question

Antonia Lichtenegger 2011-3-23

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https://ww2.mathworks.cn/matlabcentral/answers/3847-simulink

ok my problem, in simulink, is that I have a function like:

df/dt=m*exp(f*V)

and V=[v1,...,vn] should be a vector and now I would like to calculat thees function for every vector entry and then get back the new vector.

How can I simulat this in Simulink?

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Answer 1

Jarrod Rivituso 2011-3-23

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https://ww2.mathworks.cn/matlabcentral/answers/3847-simulink#answer_5520

The Integrator block supports vector signals. So, try this...

1. Add an Integrator block to the model. Set the initial condition of the Integrator block to be a vector of n elements, one for each of the equations you'd like to integrate. The input to the Integrator is df/dt, and the output is f.

2. Calculate df/dt. To do this, you will have to use a Gain block to multiply f by a the V vector. By default, the Gain block will use element-wise multiplication, and so each equation would be multiplied by the correct v parameter.

Hope this helps!