(. 32.10). , , 180.
䳿 Fr (. 32.10):
Fr = F0 + 2F1cosγ + 2F2 cos 2γ + + 2Fncosnγ, (1)
γ = 360/z; z .
(1) , nγ < 90.
:
F1 = F0 cos3/2 γ; F2 = F0 cos3/2 2γ;...; Fn= F0 cos3/2 nγ. (2)
F1, F2,..., Fn (1) ' F0,
F0 = Fr /(1 + 2 cos5/2 γ + 2 cos5/2 2γ + +2 cos5/2 nγ) = FrK.
K=4,37/z. , F0 = 5Fr /z; Fn = (5Fr/z) cos3/2 nγ. (3)
, 1/cos α,
F0 = 5Fr/(z cos α), (4)
α (. . 32.1).
F0a = 1,25Fa/z, (5)
Fa ; 1,25 , .
. F0, F1... Fn . . ֳ , () , .
. 16.15, b (. . 32.10) . . 
().
, . ( ). F0 (. . 16.14 , , b . . , , . , , (. . 16.15).
|
|
|
ʳ . . 16.16 .
ν1 = ωD1/2; ν0 = ν1/2.
ω = 2 (ν1 ν0)/Dω = 0.5ωD1/Dω. (16. 14)
,
ωc = 2ν0/Dpω = 0,5ωD1/(D1 + Dω) ≈ 0,5ω. (16.15)
, , , , .
(16.15) , . Dw D1 ω. , . ̳ . ' , . .
aba. b . , b , . . . . . , .
. (. 16.17, ) F = mωc2Dpω/2.
m .
, . , (. . 16.2). . ³ (. 16.17, 6). .
䳺 , ' (. 16.17, ):
M = Jωω. (16.17)
, J . ϳ 䳺 , . ,
M > M = FƒDω (16.18)
; F . 䳺 .
. . . M = Jωωsinα
α (. . 16.13).
, . , . .
|
|
|
. . , , 糿, . () . г . . . , , . ϳ . .
. ϳ , .
䳿 . : ,
. , .
' , , .
䳿 .
' .
( ) ( ).
