:
: 17 %
ρ, /3 | δ, | |||
- | 0,02 | |||
. . . .- - | 0,25 | |||
. - - | 0,12 |
2.
1.
1
ρ, /3 | δ, | - - λ, /(∙º) | - - μ, /∙∙ | ||
1 .
1) .1 : tint φint, .
2) .2 .
3) .1 ( ) .
4) .1 ( ).
5) .2 1 .
3.
,
:
- ,
- ,
- .
1.1. Rreq
Rreq - D, .
- D
D = (tint tht) zht, (1)
tint , ;
tht, zht . 10 - , 8 (. .1 ).
|
|
Rreq
Rreq = a D + b, (2)
a b , .5 .
1.2.
:
R0 = Rreq. (3)
, n ,
, (4)
δi i, ;
λi i, /( ) ( 1);
- i ( Ri);
αint , /(2 ), ..4 ;
αext ( .3 );
- .
(4) (3).
, ,
, δ2
. (5)
0,01 .
1.3. R0
( δ2 / λ2).
2 ( ). R0 ( (4)). : R0 ≥ Rreq. , .
2
δi, | Ri, 2 / | |
- | ||
1- | ||
2- | ||
..................................................... | ||
- | ||
Σ |
1.4.
Dt Dtn.
Dt £ Dtn (6)
Dtn . .6 .
, (7)
n , , . .7 ; text , . .1 .
.
|
|
:
- ,
- .
2.1. f.
f , , .
2.2. f 18% - 25% - , .
(2) .5 Rreq.
R0 .8 . R0 ≥ Rreq.
2.3. f 18% - 25% - , R0 :
0,51, D £ 3500, ×;
0,56, 3500 < D £ 5200, ×;
0,65, 5200 < D £ 7000, ×.
.8 .
2.4. ( ) tsi + 3, - 0.
(7) D t . aint . .4 .
tsi
tsi = tint - Dt (8)
, tsi , .