, . , , h., h.., h... :
(2.8)
h0 (. . 2.6); h 1 ; hc - c , hc = h0 h.
0 0 0 (. . 2.6) 0-1 . , 0 ( S) . ( 0-1) ( 0-1) .
, :
(2.9)
:
= (2. 10)
s - , ; 0 - ( , 0 = 0).
, .. , (. . 2.6).
(2.9) (2.10) , 0 = 0, :
(2. 11)
(2.7) u1 @ u2
(2.12)
(2.11) (2.12) (2.8) :
(2. 13)
(. . 2.2) 1,u = c1 Cosa1; c2,u = u +w2,u; w1,u = w1Cosb2,u; w1,u = c1,u - u [10]:
Y - , w1 - ; w2 = Yw1, Y < 1.
x = u / c1, :
(2. 15)
s, Y s b2 / Cos b1 , :
(2.16)
:
x = u / c1 = 0,5×Cosa1 (2.17)
C, ( 2.17 2.15) :
h.max. = 0,5s2 s2a1 (1 - Y×Cosb2 / Cosb1) (2.18)
(2.18) , a1 = 0, .. u = 0,5c1. a1 12-140, .
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. 2.7 h. u/c1 ; , . u / c1 , , , . .
, u / c1.
, .
(. . 2.3) : 1 = w2; w1 = c2; a1 = 180 - b2 ; b1 = 180 - a2 :
h = u (c1 Cosa1 c2 Cosa2) = u (c1 Cosa1 + w1 Cosb1) =
= u (c1 Cosa1 + c1 Cosa1 - u) = x (2 Cosa1 x) (2.19)
, :
dh /dx = 2 Cosa1 2 = 0 (2.20)
= u / c1 = Cosa1 @ 1. (2.21)
, , , u / 1 , . = 0,45-0,48; = 0,80-0,90. .. , .
, x = u/c1 , 1 u.
1 ( 2.9) , , . u , , u = pDn/60 . u / c1, 1 (, , ) .
1 @ 250-350 /, u 150-250 /. - , , (n = 50007000 /.).
. 2.7 , (1 = idem), u/c1 , , . ,
, 1 u . , u/c1 = maximum 1 n; .
u/c1 , 1,5-1,8 , (120-180 / 80-110 /). , , , . , , , , , .. , . , , (.2.8).
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, , , . , , . .