16. : . 27, ; . 27, ; v = 96 /, g = 45 /; Qmax = 380 ; 15 (Rbt = 0,67 g b 2 = 0,9); 6 (Asw = 57 2) -I (Rsw = 175 ), s = 150 ; -II (Rsw = 225 ), : s,inc 1 = 628 2 (2 Æ 20), s,inc 2 = 402 2 (2 Æ 16).
.
. h 0 = 600 40 = 560 . . 3.31 Mb qsw:
(. . 21);
;
/.
. 3.32 q 1= g + v /2 = 45 + 96/2 = 93 /.
(50) (65) , , . . = 50 + 520 + 300 = 870 = 0,87 .
= 0,87 :
.
c 0 . 3.35.
c 0 (56):
c 0, max = 1,12 . = 0,87 < c 0 ,max = 1,12 , c 0 = = 0,87 . , , . . , , c 0 = 0,30 < c 0 ,max .
. . .
, c 0 = 1,12 , .. = 0,05 + 0,52 + 1,12 = 1,69 .
= 1,69 Q = 380 93 1,69 = 222,8 .
, , .. c 0= c 0 ,max = 1,12 . , , , c 0 = = 1,69 > c 0 ,max = 1,12 , c 0 < c 0 ,max .
. . .
, c 0 ,max = 1,12 , . . = 0,05 + 0,52 + 0,30 + 0,52 + 1,12 = 2,51 .
= 2,51 Q = 380 93 2,51 = 146,6 .
, , c 0 = c 0 ,max = 1,12 , . . Qs,inc = 0. c = 2,51 1,87 , Qb = Qb,min = 76,5
|
|
Qb + qswc 0 + Qs,inc = 76,5 + 66,5 1,12 + 0 = 151 > Q = 146,6 , . . .
. 3.29 , Q = 299,1 jb 4 = 1,5:
. . . 3.29 .
17. : 8,8 ; q = 46 / (. 28, a); . 28, ; 25 (Rbt = 0,95 g b 2 = 0,9); -I (Rsw = 175 ), 8 (Asw = 50,3 2), s = 150 .
.