28.11-5 1.252.1-4
( =0,95), C1.
2.1-
25/30.
:
= 1,5 .
:
.
=1,8 ( 6.1 [3]).
S500 ( = 417 6.5[7]). S500 ( = 435 6.5[7]). S240 ( = 174 6.5[7]). 2.1
( 2.2.). .
= -130-110=1140-310-110=900=0.900.
2.1.
2.1 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 |
2.2.
!!!!!!!!!!!!!!!!!!!
2.1:
(2.1)
.
:
d = h c (2.2)
h = 90 20 = 70 .
, 11.4 [2] 20 .
Ø .
d = 70 22 = 48
:
(2.3)
α , , 50/60 1,0.
:
(2.4) = 0,810; k = 0.416 , 6.5 [19].
(2.5)
, .
=3,5 ( 6.1[3]).
, :
,
;
= 0,015< = 0,375, ,
7.6:
(2.6)
.
4.7:
(2.7)
|
|
4 S500 1 , = 75,4 > , 11.1[6]: < 0,13. =0,13.
-1 4 S500 150 ( 200) .
.
7.3.
h = 350 20 = 330 , 160; ; ; .
2.3-
>0,1 7.1.2.6. [3] :
1)
= 110 ,
670+110 = 530
2)
2640 + 110 = 550
530 .
1 2.2.
2.2 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 7.1 8.81 |
=11.89 | =16.97 | ||
3. 4. | 1,01 1,71 | 1,35 1,5 | 1,36 2,56 |
2.72 | 3.92 |
2.4:
2.4 -
, .
:
(2.8)
-
(2.9)
.