# transfer function

• Jan 28th 2010, 12:17 PM
OkayMath
transfer function
could some help me on this thankyou
find the new transfer fuction relating x and y for the 2 blocks
a) b = (d^2)x/(dt^2) + (4dx)/(dt) + 6x
b) y = (d^2)b/dt^2 + 8db/dt + 2b
• Jan 29th 2010, 02:07 AM
chisigma
The transfer function of a is...

$f_{a} (s)= \frac{1}{s^{2} + 4\cdot s + 6}$ (1)

... and the transfer function of b is...

$f_{b} (s)= \frac{1}{s^{2} + 8\cdot s + 2}$ (2)

The transfer function of the cascade of a and b will be...

$f(s)=f_{a} (s) \cdot f_{b} (s)$ (3)

Kind regards

$\chi$ $\sigma$