. l3 g1 g2 (. 9.7). г g2 - g1 = b () . , , , x.
1 2 , .
,
( ).
. 9.7 , ; 1 2 q. , t (1800 + θ), t (1800 - θ). ,
, .
β DE C2 C2F, θ DE F. lFC2 = r A, - Ð C1AC2 Ð C1FC2 =2θ, C1C2, , , θ. . ϳ 3 (. 9.2); l1 l2 (11.4).
, r ( ).
- . () v (/). (.9.2, ) , , 2h = 4l1.
n (1/),
v = 2hn = 4l1n, () l1 = v /(4n).
λ2 = l2 / l1 l2.
. (.9.8, ) 1 5, v v v . h 5 v = v / v.
,
, () ; v > 1.
|
|
v β ( ) ( ω1 = const)
, .
.
() CD l3, l6 = lAC () l1 = l
l3 = l6 + l1 + , (9.13)
. , D
l1 = l6 sin(β / 2). (9.14)
ϳ l1 (9.13) ( )
ϳ l6 (9.14) l1; l6 / l1 ≥ 2.
2 3 υ32 = 0, . 4 5 xx , f . DNDE 4
,
f = l3 - l3 cos(β / 2); υmax ≤ υ.
³ 5
.
4, 5 (.9.8, ). : υ54 = 0.
. .9.8, .
: l1 = l , h 5 Kv = v / v >1.
5 1 φ = 1800 + θ, φ = 1800 θ. ω1 =const
, .
³ l6 = l 1 3 ∆ 1 l6 = l1 sin(θ / 2); l1 / l6 ≥ 2.
(1 2) (1 2), 3 4 , CD; lCD = h / 2.
4 , v = v54 v, l4 ≥ h / (2 sin υ).
4 , . 2-3 1 , , .
˳
1 .. : ϳ. . 2- , . . .: .1975.-640.
2 .. : . .-4- ., . . .: . . . .-. .,1988. 640.
3 : . /.., .., .. .; . ...-.: ..,1987.-496 .: .
4 . ./. ...-: ̲, 1993. 23 .
1 ⅅ....3
|
|
1.1 ....3
2 ..6
3 ⅅ....8
4 ⅅ....10
5 셅.12
6 .15
7 腅 .. 19
8 23
9 腅..26
9.1
.27
9.2
ꅅ..28
9.3 ꅅ.34
9.3
腅..38