:
1. : 1 = 103P1/ω1 2 = 1 uη, 1 ; 1, 2 ∙; η = 0, 96.
2. σ1, σ2 1. : 269... 302 HRC 48...53. HB1cp=HB2 +(20...30). D .
3. [σ0] [σF0] , N 0 N F0 :
[σ0] = 14HRCcp+ 170 /2
[σF0] = 310 /2.
4. , KHL= 1 KFL= 1.
[σ] = KHL [σ0], [σF]1 = Kfl[σfo] 1 [σF]2 = Kfl[σfo] 2,
[σfo] 1 [σfo] 2 , NF, [σfo]1= l,03HB1cp [σfo]2= =l,03HB2cp. Kfl (NΣ ≥NF= 4 106), KFl =1.
5. .
β Fβ Ψd=b/d1, Ψd=0,166 .
β Fβ Ψd 5 6.
6. de2 = 165 ,
Θ = 1,3 , 2 ∙, [σ] /2 de2 .
de2 1228976 . 10. de2 :
7. : , ,
2 ∙, de2 b , ΘF = 1 , [σF] = [σF]2 - /2, Fβ .
. m ≥1,5 .
8. : z2 = de2/mte; z1 = z2/u.
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9. u' = z2/z1 , 3 %.
10. : tgδ1=1/u, δ1= arctg 1/u ( );
δ2 = 90 δ1.
11. , . 11 n1 1, n2 = - n1 2 = - 1.
12. β = 35;
de1 = mt z1;de2 = mt z2 ;
dae1 = de1 + 1,64(1+ n1)mt cos δ1;
dae2 = de2 + 1,64(1+ n2)mt cos δ2;
: Re = 0,5mte ;
: R = Re 0,5b;
: b/Re < 0,285;
: m = [mte (b∙sin δ1)/z1] cos β≈0,702mte;
:
d1 = mz1/ cos β = 0,857de1 d2 = mz2/ cos β = 0,857de2.
14. :
Ft = 2T2/d2;
Fr1 = Fa2 = Ft ∙(0,44osδ1 - 0,7sinδ1);
Fa1 = Fr2 = Ft ∙(0,44sinδ1 + 0,7os δ1).
15. v KFv 7.
16. :
, Θ = 1,3; Ft ; de2, b ; σ /2. . 10 % 5 %. b, Ψd.
17. :
zv1 = z1 /(cos δ1 cos3 β) zv2 = z2 /(cos δ2 cos3 β).
zv1 zv2 YFl YF2 12 ( ).
18.
ΘF = 1;
Ft , b m ; σF /2.
.
116. (. 6) . P1 ω1. u. 40 HRC>45. . , . . 6.
. 6 ( 116): 1 ; 2
6
1, | 2,1 | 1,8 | 1,6 | 2,2 | 2,5 | 3,2 | 3,2 | |||
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