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.6
(7)
(7)
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(,X) .
Z=0 , ɑ. Z= 0 0≤ r< ɑ ( z = 0) Ϭz = -().
, ()==st,
, (. 7),
, , (. 8),
F(λ)
(8)
.7 .8
(. 9,) :
9.
F1A, F1A≥F1B (. 9,6). F1A :
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(. 10) .
, (. 11),
F(λ) λ . 1.
.10,11
, (, 12), R/b=0.25; h/2b=2,00,
.12.
. 2 F(λ) λ
.
1.6 1
(. 1.4) 1 , . .
, , , , . , , . , .
(4),
(9)
1 = :
(10)
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(10) .
. 13, , . 13,6 - . .13 |
(11)
. , r .
, , . , . , , (. 14,). t (. 14,6). ,
. 14
, 1 (. 14,), . , . ry // t ≥ 1, ry (9). , 45 . .
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ry / t ≤ 1/5 . .
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13 . 1 , .
1 , , . . 15 . 16 < W / t < 45, t - ,
1 5 < W / t < 10.
( ) , . 15,
(12)
.15
. 2t, . 2t (12) 2t , .. 1., 1, :
, (12) , .. 11. (12) t tc + ry*1. ry*11
(12) t tc + ry*11, 111 .. , . - . 1 (II) 1* , .
.
- (/3/2), - (/3/2).
1, , , - , , , .