9
08-55
: . -08
..
: .
..
2011
.
1. 充..3
2. ... 4
3. Յ6
4. .10
5. ...14
6. ..18
7. ......20
- .
.1. .
= 5;
= (f+1)*0,5
f = 5+5=10=1+0=1
= 9*2*0,01=0,18
= =(10-5)5=25
1. .
1.1 :
:
, , .
( ) .
.
2.1. L(w). ( ).
1 14 , 0. 0.7 -20 /. , 0.745. -20 /. .
.
2.2. L(w).
-20 . ( 16 ). , -60 . .
2.3. L(w).
L(w) L(w).
L=L-L
2.4. L(w) .
|
|
20Lg k = 2 → K= 1.258
( Matlab), .
>> w=tf([6.29],[0.00000296352 0.00142884 0.1764 1])
Transfer function:
6.29
--------------------------------------------
2.964e-006 s^3 + 0.001429 s^2 + 0.1764 s + 1
>> bode(w)
:
, w, π. .
, 30÷60
(γ) , .