# Items tagged with bodebode Tagged Items Feed

### about DynamicSystems module and transfer...

May 14 2013 by Maple

Hello,

I use the module DynamicSystem to transform a state system in transfer functions. Next, i can plot Bode diagram with this module.

However, i have a little problem. I don't manage to extract only one transfer function from a dynamic system when i have several transfer functions (see example below)

I'd like to plot the first transfer function alone in fact. How can i extract y1(s) ?

### How to find the transfer function from...

January 27 2013 by Maple

1

3

Hi all,

There is a state space system as follows:

X_dot = A.X + B.U

Y = C. X

The transfer function of this system is

H(s) = C. (sI-A)-1.B                 (1)

H(s), that is calculated in Maple by using the formula (1), is very complex (please see the attached file).

Would you please show me how to find the transfer function of the system?

In addition, how to plot its bode plot?

### ODE Plot multiple plots

May 21 2012 by Maple

0

6

Hi all,

I am trying to plot multiple ODE plots in Maple 16. I can do them all separately, but cannot figure out how to make to solutions appear in the same plot. I have numeric solutions for sol1 and sol2, and I want to plot A(t), t for each one (together).

Thanks for the help!

### Bode plot colors?

November 18 2011 by Maple 15

0

2

Hi there,

I am using the bodeplot function to plot three transfer functions, and for this I need to specify each one with a different color set. I can use the color="blue", but that assigns all the transfer functions to blue. How can I differiante between them?

Impedance_plots_afte.mw

### How to plot the Bode plot of this transfer...

June 21 2011 by Maple 15

0

5

> restart:   with(DynamicSystems):> sys := TransferFunction(1/((1+0.1*s)(1+0.002*s+0.0001*s^2)));> BodePlot(sys,range=10^(-1)..10^(3)); I get the following warning:

             Warning, transfer-function(s) are not rational-polynomial(s) in s Why?.. How can I make it work without any warning? Thanks everybody for help!


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