1.
(.1)
, , . , , 20, : ( , ).
2. ()
() - , .4.1 1. , 2 () .
3.
. .
, .4.2 4.3, . .
4.
.
, , .
. - . . - .
.
. 4.4.
4.4
S, | , |
3≤S<4 4≤S<5 5≤S<7 7≤S<11 11≤S<22 22≤S<40 S≥40 |
, . (..4.1) S1 = 20, S =15. 15. .4.1 , , 7,5. .4.4 - =6.
|
|
.4.1. ,
4.
( 2) :
= 2×F1 × L ×ρ,
: F1 , F1=0,50,62=0,18 2;
L - D=16,5, L =πD,=3,1416,5=51,81 (.1);
ρ , 7,8 /3.
:
= 20,18×51,817,8=145,48.
4.
. , 2. . 4.2.
. 4.2.
219×28 ( 8732 - 78), .4.3.
. 4.3.
50 ( ) 165 (.1).
(. 4.4). . 4.5.
. 4.4.
. 4.5.
5.
, , , .
, .4.5.
4.5
+ | |||
+ | |||
(m / m). | 0.532 - | ||
. | - | ||
. | + | ||
, . | + | ||
+ | |||
+ | |||
+ | |||
+ | |||
- | |||
+ | |||
, . | + | ||
, , . | + | ||
+ | + | ||
- | - | ||
- | - | ||
+ | - | ||
- | + | ||
+ | + | ||
+ | + | ||
+ | + | ||
0.532 | 0.31 |
5.
|
|
, , . , , .