19.1 .26
19.2
19.2.1
Fr2 I1 + RY (I1 + I2) + - Fr3 x (I1 + I2 + I3) = 0
RBY(l1+l2) - Fr2l2 + M + Fr3l3 = 0
:
618,93 - 489,25 - 912,37 + 782,69 = 0
19.2.2 :
Ft2I1 + RX (I1 + I2) + - Ft3(I1 + I2 + I3) = 0
-RBX(l1+l2) - Ft2l2 + Ft3l3 = 0
:
1156,997+1344,09-4904,91+2403,85=0
: .
19.3
.
19.3.1 :
:
= RBX l1 = 1156,97 46 = 53220,62 *
:
= Ft3 l3 = 2403,85 70 = 168269,5 *
19.3.2 :
:
= RBY l1 = 618,93 46 = 28470,78 *
:
=RBY(l1+l2)+Ft2xl2=618,93(46+46)+1344,0946=118769,7 *
= = 20352,15 *
19.4
: .
. Lh = 8000 .
20.1 [10] , 308 :
, d = 40 ;
, D = 90 ;
, B = 23 ;
, r = 2,5 ;
: Cr = 41000
: = 22400
n. = 9000 /. ( )
20.2 :
Pr = (XVFr+YFa3) x x (16.39 [2])
:
:
Fa/Co = Fa3/Co = 391,39/22400=0,0175
.16.5 [2] : = 0,2
V = 1 ( )
:
. 16.5 [2]:
= 1
Y = 0
16.29 [2]:
= 1 ;
= 1,3 ;
r = (1 1 4989 + 0 391,39) 1,3 1 = 6485,7
20.3 :
, (16.31 [2])
. 8.12 [2] = 0,25
Lh = 8000 ()
:
LhE = 0,25 8000 = 2000 .
20.3.1 :
LE = 60 10-6 n LhE = 60 10-6 200 2000 = 24 .. (16.28 [2])
n = n2 = 200 /.
20.3.2 . 16.3 [2]:
1 = 1 ;
|
|
2 = 1 ;
20.4 .
() ≤ () (16.26 [2])
20.4.1
() = ,
= r = 6485,7
= 3 ( )
L = LE = 24 ..
() = 6485,7
: () = 18744 < () = 41000
, , , 208,
: r = 32000
: = 17800
:
Fa3/Co = 391,39/17800=0,022;
= 0,21;
Fa/VFr ,
20.5 :