3 (. 12), 1 2. s, - t. , .
[s] s* (. . 1).
, (. 12) d1
. 12.
11
10748-79, ( d1=0,080)
d1 | b | h | t | t1 |
85 95 | 25,0 | 22,0 | 13,0 | 9,4 |
l () h
l= h (0,01 ¸ 0,02), (66)
l=0,15-0,01=0,14
( 23360-78): 20, 22, 25, 28, 32, 36, 40, 45, 50, 56, 63, 70, 80, 90, 100, 110, 125, 140, 160, 180, 200, 220, 250, 280, 320, 360, 400.
l=140
(, 12) . : ( . 12 ), ( . 12 )
,
F=/(0,5*d1), (67)
d1 - (. . 12).
F=1282,4/0,5*0,095=27
=(l - b)*(h - t), (68)
= (0,14 - 0,025)*(0,022 - 0,013) = 0,000225 2 = 1,035*10-3 2
s= F/ £ [s], (69)
s - , ; [s] = 1,5*[s] - , .
[s]=1,5*149*106=223,5
s= 27000 /1,035*10-3 =26,8 £223,5
.
. . II IV , I - - . , ,
. = /(h2*h3) £ , (70)
. , *; h2, h3 , ( . 3.2.1); - () , *
.=1282/0,98=1,3 £2,0
.
|
|
, , (. 13). ():
=*exp((4*m*k*h)/(dk - d))/k, (71)
k = px/py ; m - , ( ); h - , ; d, dk , .
:
5152-84 (, , tmax 100 0) k = 0,5; m = 0,08;
, 95 . dk=120 ; h=110 .
=0,2*106*exp((4*0,08*0,5*0,11)/(0,12 - 0,095))/0,5 = 0,8
F=p*(dk2 d2)*pc/(4*z), (72)
z - .
z =12
F=3,14*(0,122 0,0952)*0,808/(4*12) = 284,1
. 13. : 1 ; 2 ; 3 ; 4 ; 5
s = 1,3*F/ £ [s], (73)
s - , ; 1,3 - , , ; - , . 11; [s] - , .
[s]= 126000000 =126
s=1,3*284,1 /0,000324 = 1,13 £ 126 .
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