Simulink transfer function with sinusoidal parameters
显示 更早的评论
Hi
I need to design a transfer function in the following form: 1 / (s^2 + K*s) where K is scalar and varies sinusoidal; the denominator should look like [1 K 0].
What would be the way to implement this behavior ?
Thanks
采纳的回答
Azzi Abdelmalek
2012-11-12
编辑：Azzi Abdelmalek
2012-11-12
3 个投票
The corresponding equation is
d^2y(t)/dt^2+k.dy(t)/dt+y(t)=x(t)
where
- x(t) is the input of your system
- y(t) is its output
you have just to replace k by sin(t) using a clock and a sine wave block. and use derivative and integrator block instead of transfer function block to realize your model
or you can do this
from your transfer function
Y(p)(P^2+Kp+1)=X(p)
P^2 Y(p) + K p Y(p)+ 1=X(p)
Y(p)+K Y(p)/p+Y(p)/p^2=X(p)/p^2
this can be represented by
1 个评论
Azzi Abdelmalek
2012-11-12
realize 1/p with continuous transfer function (not integrator)
更多回答（1 个）
River Rock
2012-11-12
0 个投票
2 个评论
Azzi Abdelmalek
2012-11-12
This model is one of my own files. I 've adapted it for your question, I 've set the gain to 1. Then you can remove the two gain block
Azzi Abdelmalek
2012-11-12
编辑：Azzi Abdelmalek
2012-11-12
If you use D=[1 K], remove the first sum and 1/p blocks
类别
在 帮助中心 和 File Exchange 中查找有关 Simulink Functions 的更多信息
产品
2012-11-12
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
