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: . 109316
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: . . ,
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2008
D. .
[1].
1. : γ = 20˚; α = 10˚.
2. : b1 = 1; b = 7,55; = 2; = 2; φ1 = 15˚; φ = 45˚
B=b`+ x + b``=2,41+3+2,14=7,55 :
b``=kstg15˚=80,26=2,14;
b`=zytg15˚=90,26=2,41;
ks=(d3-d)/2=(28-12)/2=8;
zy=(D-d )/2=(30-12)/2=9;
=3 ( )
3. :
L = l + + + b + b1 = 20 + 2 + 2 + 7,55 + 1 = 32,55
4. tmax = 9.
5. 44 [1]: =19; =90; =10; =25; F=15; r=1; d=6; M (h9)=34,46.
6. .
h=r1*sinγ = 6sin20˚ = 2,052.
A1 = r1cosγ=6cos20˚ = 5,638.
2
γ 2= arcsin (r1/r2sin20˚) = arcsin(6/100,342) = 11,841˚
A2 = r2cos11,841˚=100,978 = 9,787.
C2 = A2-A1=9,787-5,638=4,149.
P2 = C2cos30˚=4,149cos30˚=3,593.
3
γ 3= arcsin (r1/r3sin20˚) = arcsin(6/140,342) = 8,417˚
A3 = r3cos8,417˚=140,989 = 13,849.
C3 = A3-A1=13,849-5,638=8,211.
P3= C3cos30˚=8,2110,866=7,110.
.
289(+0,052)
40
187
L=40
7510
P0=102
L.=1250
[2].
1. , ;
= 0.005D +(0,1÷ 0,2) ==0,005*28+(0,1÷ 0,2)* = 0,14 +(0,1÷0,2) * 6,324 = 0,772÷1,404
=1
2. D D01, ;
D01 = D = D0 A=28-1= 27
3. , ;
L1 = 280 + L=280+40 = 320
4. d1, ; (. 8.3)
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d1 = 25
5. F, , 2 (. 8.3)
F =283,5 2.
6. , ; tp = m ;
tp = (1,25 ÷ 1,5)* =7,905÷9,486.
7. , , (. 8.6)
tp =8 .
8. , ;
9. h, ; (. 8.6)
h = 3
10. F,2;
F = 7,07 2
11. ; (.8.8)
= 4
12. , , /;
Szk=Fk/(K∙L); Szk=7,07/4*40=0,044 /
13. , , ; Px = Fxσx (. 8,9)
Px =283,5*300=85050
14. , , ;
P1=F1σ1 = π (D01 2h)2σ1/4=3,14(27-2*3)2*400/4= 138474
15. , ; Pp = (Px; P1; 0.9Pc)min;
Pp=(85,050; 138,474; 0.9*120) = 85050
16. , , /;
Szp = (Pp / Cp π D zmax)1/x=(85050/2170*3,14*28*6)1,25=0,039 /
x = 8/10, Cp=2170;
. . Szp > Sz , : h = 2,5; F = 4,91; = 4
Sz =4,91/2,5*28 = 0.070
. . Szp < Sz, n=2.
17. ; tp = m*
m=1,45÷1,9; tp=(1,45÷1,9)* =9,170÷12,016
18. , ; tp=10 .
19. zmax=(40/10)+1= 5.
20. hk 4
21. Fk 12,56 2
22. K=3
23. , , /; Szk=Fk/(K∙L)=12,56/3*40= 0,104/
24. , , /;
Szp = (Ppn / Cp π D zmax)1/x=(85050*2/2170*3,14*28*5)1,25=0,115 /
x = 8/10, Cp=2170
25; ;
l=At/2Sz min=1*8/2*0,039= 102,564
26; ;
l=Atn/2Sz min=1*10*2/2*0,104= 96,15
, .. Szp> Szk
, .
hk=4
27.Sz=0,1.
28.n=2.
29. .
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D3 = 27,19
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D4 = 27,40
D5 = 27,39
D6 = 27,60
D7 = 27,59
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D8 = 27,80
D9 = 27,79
D10 = 28,00
D11 = 27,99
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31. , .
Lp = tp (zp 1) = 10*(12-1) = 110
32. (. 8.17)
z=5.
33. , .t ≈ 2tp/3.
t ≈ 2*10/3 = 6,66
t =8 .
34. , .
L = t z = 8*5 = 40
35. , .
L = 40
36. , .
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L = L1 + Lp + L +L=320+110+40+40=510 .
37. , .
L max = 40 D0.=40*28=1120
38. , .
Lpx = L + Lp + L.=320+110+40=470 .
39. , .
b = 1.7 =1,7* =8,9 .
40. Dk ,
Dk= 80
41. , .
h>(2÷5)Sz.=0,22÷0,55=0.6
42. , .
=((D0+Dk)/2)-h.=((28+80)/2)-0,6=53,4
43. θ, .
cosθ= (D02+4a2-Dk2)/4aD0.
cosθ = (282+4*53,42-802)/4*53,4*40=0,969
θ =0,2
44. .
i=πD0/(b+θ D0)=3,14*28/(8,9+0,2*28)=6,038
i=6
45. , .
B= D0(π/ i-θ)=28*((3,14/6)-0,2)=9,053
46. γ=15º.
47. β γ=45º.
48. , .
D = (D01 h)*sin β /sin γ=(27-4)*0,707/0,258=63,97
49. Dmax ,
Dmax=28,052
50. , . 0.005
51. , .1/3 0,02
52. , . 28,047-0,02
53. , .0,010,02, 0,4 Sz..
0.01.