R (97)
g c 1 = 1,25; g c 2 = 1 (. 6); k = 1,1; d B = 2 ; . 7 jII
= 24; Mg = 0,72; Mq = 3,87; Mc = 6,45.
( w = 3):
R |
I |
I |
n(v I + km /2) + (Pg 2n
- Pg n
)(v 2 + km
2/6)] h 2/(1 + k) -
G I ek /(1 + +k)(h 2 + h 3) = [6,22(0,329 + +0,41×1,2/2) + (46,51 -
6,22)(0,08 + 0,41×1,22/6)]× ×6,15/(1 + 0,41) - 198,09×0,98×0,41/(1
+ +0,41)(6,15 + 1,2) = 39,29 .
:
R 2n = Pq n h 2(v 1 + km /2)/(1 + k + k 1) - G 2n ek /(1 + k + k 1)(h 2 + h 3) =
= 23×6,15(0,329 + 0,41×1,2/2)/(1 + 0,41 + 0,1) - 77,6×0,98×0,41/(1
+ 0,41 +
+0,1)(6,15 + 1,2) = 51,05 ;
R n = R In + R 2n = 39,29 + 51,05 = 90,34 ;
g 1 |
+ P |
g 3 |
+ 3 P n q
)(h 2
+ h 3
)2/6 - (G 1n +
G 2n) e =
= -90,34(6,15 + 1,2) + (2×6,22 + 54,37 + 3×23)(6,15 + 1,2)2/6 -
(198,09 +
+77,5)0,98 = 288,66 ×.
n |
en > b /6 = 3,3/6 0 0,55 ;
p max = 2 F un/3 c 0 = 2×440,69/3×0,99 = 296,76 , c 0 = 0,5 b - e n = 0,5×3,3 - 0,66 = 0,99 .
.
( 1 )
R ( w = 6):
R1 = 9,14(0,329 + 0,81×1,2/2) + (68,28 - 9,14)(0,08 +
+ 0,81×1,22/6)]6,15/(1 + 0,81) - 217,9×0,98×0,81/(6,15 + 1,2) =
= 66,57 ;
R2 = 30,54×6,15(0,329 + 0,81×1,2/2)/(1 + 0,81 +0,1) -
- 93×0,98×0,81/(1 + 0,81 + 0,1)(6,15 + 1,2) = 74,88 ;
R = R1 + R2 = 66,57 + 74,88 = 141,45 = Q .
(89)
, (88)
= Q , - [(Pg 1 - Pq) + (Pg 2 - /2 =
=141,45×2,69 - [(9,14 + 30,54) + (68,28 - 9,14)2,69/3×6,15]2,692/2
=
= 206,13 .
( w=3, Q = 128,56 ) (91)
Q = Q - [(Pg 1 - q) + (Pg 2 - g 1)/2] h 2 = 128,56 - [(9,14 + 30,54) +
+ (68,28 - 9,14)/2]6,15 = - 297,33 .
( w
= 3) (92)
= Q h 2 = [(Pg 1 + q) + (Pg 2 - g 1)/3] h 22/2 = 128,56×6,15 -
- [(9,14 + 30,54) + (68,28 - 9,14)/3]6,152/2 = - 332,56 ×.
7. ( )
. . 3,5
|
|
(b = 8,5×106 ). t = 0,6 .
. 16, :
h 1 = 0,85 ; h 2= 2,6 ; h 3 = 0,35 ; = 3,8 ;
h = 2,95 ; b = 1,4 ; q = 10 ; Nc = 150 ;
N cn = 136 ; = 0,5 ; = 8 ×; n= 7,3
×.
. 16. ( )
- :
gn= 19 /3; jn= 26; n = 15 ; = 1,9×104 .
.
:
gI= 1,05×gn= 1,05×19 = 20 /3; gII= gn = 19
/3;
jI= jn/gj= 26/1,15 = 23; jII= jn= 26;
I= c n/1,5 = 15/1,5 = 10 ; c II= c n= 15 .
:
g¢I= 0,95gI= 0,95×20 = 19 /3; g¢II= 0,95gII= 18,1
/3;
j¢I = 0,9jI = 0,9×23 = 21; j¢II = 0,9jII = 23;
¢I= 0,5 c I= 0,5×10 = 5 ; ¢II= 0,5 c II= 7,5 .
.
1. :
q0 = 45 - j¢I/2 = 45 - 21/2 = 3430¢; l = tg2q0 = tg234-30¢ = 0,472:
) ( k 2 = 0):
g 1 = 0;
g 2 = [gg fh - 2 c cosq 0 cos e/sin(q 0 + e)]l y / h = [19×1,15×2,95 -
- 2×5cos 3434¢cosq0/sin(3430¢ + 0)]0,472×2,6/2,95 = 20,76 ;
g 3 = [19×1,15×2,95 - 2×5 cos3430¢ cos0/sin(3430¢ + 0)0,472 ´
´ 2,95/2,95 = 23,56 ;
) :
Pq = q g f l = 10×1,2×0,472 = 5,66 .
2. : q0n= 45 - j¢II/2 = 45 - 23/2 = 3330¢;
ln= tg2q0n= tg23330¢ = 0,438;
) ( k 2 = 0):
gI |
g 2n = [1,8×1×2,95 - 2×7,5 cos3330¢ cos0/sin(3330¢ + 0)]0,438
´
´ 2,6/2,95 = 11,86 ;
g 2n = [1,8×1×2,95 - 2×7,5 cos3330¢ cos0/sin(3330¢ + 0)]0,438
´
´ 2,95/2,95 = 13,46 ;
) :
q n= 10×1×0,438 = 4,38 .
Ih = l × t 3/12 = 1×0,63/12 = 1,8×10-2 4.
t = const . 8 v 1 = 0,35; v 2 = 0,1;
m 1 = /(h 1 + h 2) = 3,8/(0,85 + 2,6) = 1,1; n = h 3/(h 1 + h 2) = 0,35/(0,85 + 2,6) = 0,1; n 1 = h 2/(h 1 + h 2) = 2,6/(0,85 + 2,6) = 0,75;
k w=6 = w EbIhm 2/ b 2(h 1 + h 2) =
6×8,5×106×1,8×10-2×1,12/1,9×104 ´
´ 1,42(0,85 + 2,6) = 8,65;
k w=3 = 3×8,5×106×1,8×10-2×1,12/1,9×104×1,42(0,85 + 2,6) = 4,32.
:
G = 1,4×1×0,35×23×1,1 = 12,4 ; (G n = 11,3 ).
:
G 1 + G 2 = 2,6×1×0,4×19×1,1 + 0,4×10×1,2 = 26,54 ; (G 1n +
|
|
G 2n = 23,76 ).
:
G 3 = 0,6×3,45×1×24×1,1 = 54,6 ; (G 3n = 49,7 ).
Fv = G + G 1 + G 2 + G 3 + Nc = 12,4 + 26,54 + 54,6 + 150 = 243,54
;
Fv n = G n + G 1n + G 2n + G 3n + Nc n = 11,3 + 23,76 + 49,7 + 136 = 220,76 .