:
1. : 1 = 103P1/ω1 2 = 1 uη, 1 ; 1, 2 ∙; η = 0, 97.
2. HB1, HB2 σ1, σ2 1. HRC 45...56 (. ), 2 = 269...302 (2285). , 1 - 2 ≥70, (HRC1 = HB10);
3. : [σ]1 = (14RC+170), /2; [σ]2 = (1,82+67), /2
[σ]1= [σ]1KL, [σ]2= [σ]2KL. KL=1. : [σ]1= σ1 KL/[sH], [σ]2= σ2 KL/[sH], /2 ,
σ1 = 21 + 70 σ2 = 22 + 70.
: [σ] = 0,45([σ]1 +[σ]2 ), /2.
[σ] ≤ 1,23[σ]2. , [σ] = 1,23[σ]2.
4. [σF]1 = Kfl[σfo] 1 [σF]2 = Kfl[σfo] 2, [σfo] 1 [σfo] 2 , NF, [σfo]1= 310 /2, [σfo]2= l,03HB2cp. Kfl (NΣ ≥NF= 4 106), KFl =1.
5. .
Ψa=b2/aω
2. Ψd=b2/d1=0,5Ψba(u+1).
β Ψd 6.
β =1.
6. : 
aω ; 2 ͷ; [σ] /2.
ω, (. . 6 111).
7. :
d2 = 2aω u /(u +l);
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b2 = Ψaaω.
8. : 
m ; 2 - ͷ; d2 b2 ; [σF]2 /2.
m 31076 3. m < 1 .
9. :
sin βmin = 4m/b2. βmin ( , 2ndf). :
zΣ = 2 aω cos βmin /m,
zΣ . : cosβ = m zΣ /2aω,
β . β 8...18; : z1 = zΣ/(u+1) z2 = zΣ z1.
10. u'= z2/z1. u 2,5 %.
11. :
- :d1 = mz1/cos β; d2 = mz2/cos β 0,01 ;
- : a'ω = (d1 + d2)/2;
- : d a1 =d1+ 2m; da2 = d2 + 2m; : b2 = Ψaaω; b1= b2+ (2... 5) .
12. , :
Ft = 2T2/d2;
Fr= Ft tg aω / cos β;
F= Ft tg β.
Ft,Fr F , aω = 20. 2 ͷ, d2 .
13. v = ω1 d1/2, / 4.
14. Ψd=b2/d1
β (. . 5). Hv KFv 7.
15. : 
Ft ; d2 b2 ; σ /2. σ < [σ] 10 % σ > [σ] 5 %. , b2 ω Ψ aω, σ.
16. :
zv1 = z1 /cos3 β zv2 = z2 /cos3 β.
zv1 zv2 YFl YF2.
17.
.
Fβ 5.
113. (. 3) , P1 ω1. u. , . . 3.
+ , .
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| . 3 ( 113, 123, 124): 1 ; 2 ; 3 |
3
| 1, | ||||||||||
| ω1, / | ||||||||||
| u | 3,15 | 2,5 | 2,5 | 3,15 | ||||||
| 40 | 40 | 40 | 40 | 45 | 45 | 45 | 40 | 40 | 40 |
