(. . 3.1,) . - , . ; , , , .
(. 3.3)
=ω1/ω2=d2/d1=z2/z1. (4.1)
(. . 3.19).
d=dω=mz (4.2)
da=d+2ha=d+2m (4.3)
df=d-2hf=d-2,5m (4.4)
ω = , (4.5)
zΣ=z1 +z2 - .
zΣ, .
(4.1).
. 4.1
Fn, () NN. , . , Fn :
(4.6)
(4.7)
2 ; Ft =20 .
Ft , .
5.
, , . , . , , , .
β (. 5.1), .
. 5.1
. 5.2
β , .
, , .
(. 5.2) , (tt), ( ) . pt, . :
|
|
mt = pt/; m = /,
mt m . . 5.2
pt = P/cos β,
,
mt = m/cos β,
β .
m .
(5.1)
d=dw=mtz = mz/cosβ.
, . . , , .
h hf :
ha = m; hf = 1,25m. (5.2)
da = d + 2m. (5.3)
(5.4)
, β, aw.
(5.5) , β zv.
Fn β (. 5.4). Fn , :
(5.6)
Fr = Ft tg αw/COS β
Ft = 2T2/d2 ;
Fa = Fttg β
(5.7)
( ).
. 5.4.
Fa , β. β = 8... 18. .