382
A.
B.
c.
Herman H. Shugart
Forced Reaponll
1 . 2 , - - - - - 7 i f ; - - - - - - - - - - - - - - - - - - - ,
J 0.8 -Hl-...... ~_r---"7"''''-----------____l
'" ...
! 0.6
~04~~~-~~~--------------~
'/I. .
0.2 i*-+---,~---=L--------------~
0
C>
-
.., ... '"
.... CD 0> C> ~
.., ... '"
.... eD C>
- ... .., '" '"
.... 0> C>
c> c> c> c> c> c> c> c> ..:
..: ..: ..: ..: ..: N N N N N N N N M
Tim.
Fr .. Respons.
1 . 2 , - - - - - - - - - - - - - - - - - - - - - - - ,
J 0.8 -A-'\r-~-_Y:_-------------__l
'" ~
J 0.8 +\\rl:--:r-"'r-~_"r-------------_l
'" '04+-~~-~~~-~r_-----------~
'/I. .
0.2 +-~RdII~._-~-~::___f:_---------~
0
0.9
0.8
J 0.7
'" 0.8
...
J 0.5
; 0.4
'/I. 0.3
0.2
0.1
o
C>
;;; .., ... '"
.... CD 0>
c>
c> c> c> c> c> c>
y
J>
1 ~ .
r'\"'
\ ...... X3
r~,,- ..... X4
I ~.A(
/" ~"C! ... :3 ... ~ ~
CD
..:
..:
..:
Tim.
Impuls. Respons.
~x,
~
Tim.
C>
- ... .., '" '"
.... 0> C>
N N N N N N N N M
o _ N ~ ~ G ~ 0 0
N N N N N N N N ~
FIGURE 25.3. Dynamic responses of the Silver Springs, FL, compartment model. A, Forced response; B, free response; C, impulse response.