ĝ w,, ????. ????. ( ) L . . - 2- .
, , , , , ( ) X.
:
0= + = / (7.10)
:
(h h') = ge (L L..) / (7.11)
h, h' . - , L, L. -????.
(7-11) , h:
h = h' + ge (L L..)/ / (7.12)
* h' . * h' * (h' + r),
* h' = * h' + * (h' + r). - (7.13)
.
= / = /0 (7.14)
(7.13) = 0 (7.14),
h = ((+ )*h')/ 0 + (r* )/ 0 = h' + r*x → x = (h h')/r (7.15)
:
x
(0), , ????
W = V/ƒ = / ĝ'' * ƒ = (w0 * ƒ)/(V''* ĝ''* ƒ) = w0''(ƒ/ ƒ)
V = / ĝ''
= (W0'' * ƒ)/V''
W = V/ƒ = / ĝ'* ƒ = (W0' * ƒ) / (V' * ĝ'* ƒ) = (W0' * ƒ) / (f - f )
W = / ĝ'
= (W0'*f) / V'
w0 w' w0.
ƒ
w0 = ( * V)/ ƒ = V/ ƒ
w0' = ( * V')/ ƒ = V/ ƒ (7.16)
, , .
=
W0 = ( * V') / f → . (7.17)
.. f = const W0 - .
(7.10), (7.16) (7.17) f = const
W0* ĝ' = W'0* ĝ' + W''0* ĝ'' = W* ĝ = const, (7.18)
.. W0 = W'0 + W''0 (ĝ'/ ĝ'')
|
|
:
: V = / ĝ'' V = / ĝ'
, ,
W = V / f = W0'' (f / f); W = V / f = W0' [ f / (f f) ] (7.21)
W ≠ W, W < W. , . W W - - .
, ,
, .
φ = f / f (7.12) → φ = W0'' / W (7.22)
= const ↑ W φ ↓ W ↓ φ ↑
φ . , W = W,,, V = V + V.
.
β= V / V
:
/ (1 ) = (ĝ'' / ĝ') * β / (1 β),
β :
Β = (1 + ((1 ) / )* ĝ'' / ĝ')-1 (7.24)
= (1 + ((1 β) / β)* ĝ'' / ĝ')-1 (7.25)
= 0 β = 0, = 1 β = 1; 0 < < 1 < β, β ĝ'' / ĝ'.
Β = f (, ), (. 7.4 . 130)
7.3 .
Δ , 0 .. Wn = W.
Δ = Δ.. [ 1 + X (ρ" / ρ ' - 1)], Δ. = (Δ + ΔƩ ),, Δ.. - W0 ρ ' s Δ . φ = f (, X, W0). φ .
W0=Ġ /(ρ ' f), f , 2 ;
Ġ ,/;
ρ ' s;
Δ.. = Δ... [ 1 + X (ρ " / ρ ' - 1)], ; (7.27)
Δ... W0 ρ ' Ts.