ѻ
: 150302 : -13-5
2
:
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2015/2016
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2
: : -13-5
( )
1. : _______________
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2. : 302,5 223,5 _______________________________
121810________________________________________________
55______________________________________________________________
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3. 25.03.16________________________________________________________
4. 15.04.16_________________________________________________________
5. ____________________________________________________________
6. _________________________________________________________________
1. 302,5 223,5
D=30
S=2,5
D0=22
S0=1,5
2. 121810
3. 55
:
:
ƛ=(1-1/)100%=55,3%
:
l = 410
:
l += 74 ( 55)
:
l 0 = l - l +=336
:
Δk = 0,4
:
= 6
|
|
:
D 3 - D 0 = 35 - 28 = 7
D 3 - D 0 | 2tgα | |
-55 | <14 14÷18 >18 | 0,01 0,015 0,02÷0,03 |
2tgα 0,01
:
d= D0 2S0= 22 2 ⋅1,5= 19
:
D = d + l ⋅ 2tgα = 19 + 410 ⋅ 0,01 = 23,1
Δ= (D 3 -2S3)- D = (30 - 2 ⋅ 2,5) 23,1 = 1,9
ΔS= (0,005÷0,06)Δ = 0,06 ⋅ 1,9 = 0,11
S= S0+ ΔS= 2,5+0,11=2,61
. 7 . = l0/7 = 336/7 = 48 .
=S + S0= 2,61/1,5 = 1,11, :
=0,5 ÷0,64 .
i | ||||||||
1,02 | 1,04 | 1,056 | 1,072 | 1,086 | 1,10 | 1,11 | ||
1,5 | 1,47 | 1,44 | 1,42 | 1,4 | 1,38 | 1,36 | 1,35 |
:
dXi= d n+ (l 0 ix)2
i | ||||||||
di | 22,36 | 21,88 | 21,40 | 20,92 | 20,44 | 19,92 | 19,48 | 19,00 |
:
Di= di+ 2 S Xi Δk
i | ||||||||
Di | 24,96 | 24,42 | 23,9 | 23,38 | 22,84 | 22,28 | 21,8 | 20,76 |
:
i | |||||||
0,01125 | 0,01083 | 0,01083 | 0,01125 | 0,0116 | 0,01 | 0,396 |
:
km= 1,05÷1,8 - , ( , - )
ka , ( 0,7)
B1 = 24,42 + 2[ 1,8⋅6⋅1,02(0,011-0,01) + 0,7⋅6⋅1,02⋅0,005] = 24,48
B2 = 23,9 + 2[ 1,7⋅6⋅1,04(0,011-0,01) + 0,7⋅6⋅1,04⋅0,005] = 23,96
B3 = 23,38 + 2[ 1,6⋅6⋅1,056(0,01083-0,01) + 0,7⋅6⋅1,056⋅0,005] = 23,44
B4 = 22,84 + 2[ 1,45⋅6⋅1,072(0,01125-0,01) + 0,7⋅6⋅1,072⋅0,005] = 22,9
B5 = 22,28+ 2[ 1,3⋅6⋅1,086(0,0116-0,01) + 0,7⋅6⋅1,086⋅0,005] = 22,35
B6 = 21,8+ 2[ 1,15⋅6⋅1,1(0,01006-0,01) + 0,7⋅6⋅1,1⋅0,005] = 21,85
B7 = 20,76+ 2[ 1,05⋅6⋅1,11(0,396-0,01) + 0,7⋅6⋅1,11⋅0,005] = 26,21
|
|
i | |||||||
24,48 | 23,96 | 23,44 | 22,9 | 22,35 | 21,85 | 26,21 |
, 0,4, :
i | |||||||
24,88 | 24,36 | 23,84 | 23,3 | 22,75 | 22,25 | 26,61 |
1) : / .. , .. , .. , .. . .: , 2002. -640 .
2) . / .. ., .. ., .. ., .. . .: , 2008. -435 .
3) . / .. .: , 1977. -430 .
4) . / .., .., .. .: , 2005. -377 .
5) .., .., .. . .: , 1991. 399 .