.
, , .
, , , α ( 1)
1
, . S .
,
=+ρgh1
S , .. S
=(+ρgh1) S
= = ∆S+ρgh1 S
=∑∆S+ρg∑h1· S
,
∑∆S=S h1=ℓ1 Sinα
=S+ρg∑ℓ1 Sinα ∆S=
=S+ρg Sinα ∑ℓ1 ∆S
∑ℓ1∆S , , ( ),
1ΔS= S
(, ).
= S+ ρq Sinα S
Sinα = h
= S + ρq h S
= ( + ρq h) S
α , .
, .
, , .
= ρq h S
, .
. , , .
|
|
,
- ;
- ;
S - ;
I - , .
, , 1.
1
h | ℓ0 | I | |||
h/ | 2/3h | h b | |||
- | |||||
r | |||||
- |
h ;
ℓ0 ;
- ;
- ;
I - ;
h - ;
b - ;
, b ;
r - ;
. , . , , .. , ( 2) .
, ρ ? ( )
= ρq h S
, = ρq,
= ρqS.
2
,