C (t), , I (t),.
Y(t) = C(t) + I(t). (4.6)
, ( ) s .
Y(t) = C(t) + I(t) = C(t) + s Y(t). (4. 7)
. , ( ) . dt
. (4.8)
(4.8) dt,
. (4.9)
, :
. (4.10)
(4.11)
:
. (4.12)
C , , (t0 = 0), L 0.
:
,
.
(4.13)
, ( ) . n .
(4.9) L.
. (4.14)
η = K / L(4.15)
, .
(4.16)
- , .. .
.
:
. (4.17)
(4.11) :
. (4.18)
(4.18) (4.17).
. (4.19)
(4.19) (4.14)
, (4.20)
:
. (4.21)
, , , : η = η * = onst.
:
σ* = f (η*) = Const.
, , .
(4.21) ,
. (4.21)
, 4.1
4.1-
, .
|
|
sf (η) , f (η) sf ( η) .
η*.
, (4.21), , , .
(4.21) , s η *. 4.1.
s .
, .