,,,
1.
.
X Y .
1 1 2 2.
:
,
x1 = 15 - 1 ;
y1 = 30 - 1 Y;
x2 = 45 - 2 ;
y2 = 15 - 2 Y;
F1 = = 1800 2 - ;
F2 = = 900 2 - .
, .
2.
1, 2, 3. : 1) , ; 2) ; 3) [τ] , 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 ; 4) ; 5) ( 1 ).
G = . 4
a = 1,9 , b = 1,2 , c = 1,4 ,
1 = 1900 , 2 = 1200 ,
3 = 1700 , [τ] = 75 .
.
1) , BC, CD, DE
.
X
= 1178,125
2) M (. )
. ( ), . . . , , :
; 1900 + 1200 1700 + 1178,125 = 0
= 1900 1200 + 1700 1178,125 = 1221,875
.
DE:
;
CD:
;
:
;
:
;
3)
= 1221,875 DE. , WP
τ [τ],
0,043 43 ,
d = 45 .
4) (. . )
.
.
DE:
, z ,
, ;
z = 0 φ = 0;
z = a = 1,9
= 0,071 .
CD:
,
z = = 1,9 φ = 0,071 ;
z = (a + b) = 3,1 = 0,046 .
BC:
,
z = ( + b) = 3,1 φ = 0,046 ;
z = (a + b +c) = 4,5 = 0,068 .
AB:
,
z = ( + b + c) = 4,5 φ = 0,068 ;
z = (2a + b + c) = 6,4 = 0 .
5) DE
== 0,037 /
3.
, , :
1) ;
2) , ;
3) ;
4) ;
5) 1:2 .
:
I - 30,
II - 33.
.
8240-72:
hI = 300 , bI = 100 , dI = 6,5 , tI = 11 ,
4, 4, 1 = 40,5 2, z0 = 2,52 .
8239-72:
hII = 330 , bII = 140 , dII = 7 , tII = 11,2 ,
4, 4, 2 = 53,8 2.
V, Z
19,7 ;
13,4 .
XC YC V Z.
. XC YC , .
4 = 4
4 = 4
X1, Y1 , . X2, Y2 , .
4 = 4
( ) XC
1,165 .
4;
4.
4
4
, .
4.
, [τ] = 30 /2. P1 = 52 , 2 = 100 , 3 = 60 . ω = 32 /.
, .
= 1625 , = 3125 , = 1875 .
; =0; = 375 .
, M4 , .
1
;
3125 .
2
;
3125 1875 = 1250 .
3
;
1625 + 3125 1875 = 375 .
.
.
3125 .
. .
= 80,5 .
1. . X Y .
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