28.13-5 1.252.1-4
( =0,95), C1.
4.1-
20/25.
:
= 1,5 .
:
.
=1,5 ( 6.1 [3]).
S500 ( = 417 6.5[7]). S400 ( = 367 6.5[7]). S240 ( = 174 6.5[7]). 4.1
( 4.2.). .
= -130-110=1290-130-110=1050=1,050.
4.1.
4.1 1 2
/2
, | |||
1. 1.1 0,09 25 2. | 2,25 3,0 | 1,35 1,5 | 3,04 4,5 |
=5,25 | 7,45 |
4.2.
4.2 - sd
4.1:
(4.1)
.
:
d = h c (4.2)
h = 90 20 = 70 .
, 11.4 [4] 20 .
Ø .
d = 70 22 = 48
:
(4.3)
α , , 50/60 1,0.
:
(4.4) = 0,810; k = 0.416 , 6.5 [19].
(4.5)
, .
=3,5 ( 6.1[3]).
, :
,
;
= 0,016< = 0,375, ,
7.6:
(4.6)
.
4.7:
|
|
(4.7)
4 S500 1 , = 75,4 > , 11.1[6]: < 0,13. =0,13.
-1 4 S500 150 ( 200) .
.
7.3.
h = 350 20 = 330 , 160; ; ; .
4.3-
>0,1 7.1.2.6. [3] :
1)
= 110 ,
670+110 = 530
2)
2940 + 110 = 600
530 .
1 4.2.
4.2 1
/2
, | |||
1. 1.1 (0,260,095+0,080,07)25 1.2 2. | 0,76 5,26 5,87 | 1,35 1,35 1,5 | 1,03 7,10 8,81 |
=11,89 | =16,97 | ||
3. 4. | 1,18 1,94 | 1,35 1,5 | 1,59 2,91 |
3,12 | 4,5 |
4.4:
4.4 -
, .
:
-
(4.8)
-
(4.9)
.
, . , , .
(4.10)
d = h c,
, (4.11)
= 20 ( C1 = 20 11.4 [4]),
= 20 ,
d = 330 30 = 300
, , 1.
6.6 [19] , , :
(4.12)
, , = 530 , d = 300 .
4.3
6.7 [19] =0,034 , 1 η = 0,970.
4.7:
.
12 S400, = 226 > , 11.1[6]: >0,13. =0,143.
|
|
4.3.2
= 30,11 , =0,95:
30,110,95 = 28,60 .
.
4.13:
(4.13)
(4.14)
(4.15)
,
.
- 20/25, 1, 2 .
.
(4.16)
= 57 6 S240.
=95 .
, - -1 .
, S = 150 .
> ; 11.2.5 [6];
<1,3
- , 4.17:
(4.17)
- , 0,01.
;
d:
;
, .
4.18 :
(4.18)
- , 2,0, .
- , 4.19:
(4.19)
= 530 95 = 435 > = 370 = 210
= 210 ; .
- , , = 0.
- 4.20
(4.20)
= 174 ( 6.5 [7]).
;
;
.
, .