:
1. : 47 Cr, r d, D , α=12.
2. Ft, Fr Fa, xz.
3. a=0,5[B+0,5(D+d)∙tgα].
4. () R1b R2b Fr Fa (xz) R1 R2 Ft.
Ft, R1=R2=Ft/2. 2(l ). .
5. :
.
6. Ra/Cor (Ra = Fa) : 46. Ra/Cor .
7. :
RS1=eRr1 RS2 = eRr2 Ra1 Ra2. R S1 <RS2 Fa≥RS2 Rs1, Ral = Rsl Ra2 = Rsl + Fa.
8. , . 5 (1- ) X Y . <, X=1 Y = 0. Ra2/Rr2> e, = 0,45, Y .
9. V, : RE1 = XVRr1KK RE2 = (XVRr2 + YRa2)∙KK.
10. () 2:
,
L10 , n /. . .
L10 L10>L , .
135. 1, 2 (. 13). : Ft Fr. Fr, αω = 20; β = 30. d, n = 980 /. L , 1 = l,7d. t<100. . 25.
.13 ( 135, 136)
25
Ft, | 3,5 | 3,8 | 4,1 | 3,7 | 3,8 | 6,4 | 9,4 | |||
d, | ||||||||||
L , | 20103 | 30103 | 20103 | |||||||
˸ |