- . - (e = 0, .9.2 ,) 3 ( ) : h = 2 l1. φ = 0 1800.
29
9.2
, , - υ ( , , ; ). : υmax ≤ υ. υ , . 3, υ32, 1, υ12 .
υ12 ( ) , 900. ֳ , 1.
υ32max υ32 = υ32(φ) . ( = 0) φ = 90 2700. , λ2 = l2 / l1, ( ), . dz υ32max, , , ( ). , , λ2 λ2 = 35, υ32max = 19110 (. .. . ., 1967).
≠ 0 (.9,1, ), ( ) ∆1′1 ∆2′2
, (9.3)
h, e i λ2 = l2 / l1 l1 (, l1, h/2, ). υ32max > 0 , φ1 = 2700; < 0, φ1 = 900.
(.9.2, ), φ1 φ2, s ( : .9.2, s < 0) λ2 = l2 / l1 λ = / l1, l2 l1 .
y, - , 2 1 2:
.
x,
, , ,
|
|
.
λ2 l2.
- (.9.3).
9.3
l 4 , l 3 γ1 γ2 l 1 l 2 . ǒ 1 2 ,
,
(9.4)
υ32max φ = 90 1800.
(.9.4). . .9.4 1 2. 2 h ( ), 1 l 1 β. , l 3 ≈ l 1 h
k = l3 / h >1, ; , k = 1.3; 1.4 . .
9.4
υ , , . , υ, .
l1, k, β (.9.4).
1 2 1, h = lB1B2. ³ 21 l3 = lB1C = kh, . , ∆ 1N ∆ ANB2, υmax = β/2.
, 1 2 .
∆ 1N .
∆ 1
.
β υmax υ, l4. υmax = υ ( 9.4, ). l1, k, β, υ . . 0, 2 υ = υ. 1 : , , , .
ճ h = lB2D < lB1B2; , , ∆ 012 :
, 10 = kh, B1B2 =2l1sin(β/2), C0B2 = kh + h = (k + 1) h.
,
ϳ l3 = kh ∆ A0B2
, , u¢< u²< u, .
ʳ , , , , . ( ), , , .
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, , W = W0 + WM = 1 + 2 = 3 ( ), q = 0.