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hello how to create and design Trms simulink model for one degree of freedom help

hello
how to create and design Trms simulink model for one degree of freedom
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Answer #1

We will make use of the Fcn block to express this function. First, we must express the derivatives of the output, r.

Open a new model window in Simulink.
Insert an Integrator block from the Continuous library.
Insert a second Integrator to the right of the first, and connect the two with a line.
Label the line connecting the two "d/dt(r)". To label a line, double-click near the line where you want the label (in this case, just below the line)
Draw a line from the second Integrator and label it "r".
Insert an Out1 block from the Sinks library and connect it to the "r" signal line. This will form the output of the system.
Change the label of the Out1 block to "r" by single-clicking on the existing "Out1" label.

Now, we will insert the function which takes the vector and returns .

Insert a Fnc block from the User-Defined Functions library and connect its output to the input of the first Integrator. Edit the Fcn block by double clicking it, and change it's function to the following:

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