, Fn, (. 15.6). Fn : Fn Fr Fa.
:
( w = 20):
(15.5)
:
(15.6)
2 ; d1 d2 B .
. 15.6. ( )
:
: Fr2 = Fa1; Fa2 = Frl.
Fa1 . ( ) ( . 11.2, 1 , . . , ).
F, (15.6);
( = 20; , = 35)
( w = 20; βm=35)
: Fr2 = Fal; Fa2 = Frl
(15.8)
(15.9)
: |
, Fn, (. 15.6). Fn : Fn Fr Fa. : ( w = 20): (15.5) : (15.6) 2 ; d1 d2 B .
. 15.6. ( ) : : Fr2 = Fa1; Fa2 = Frl. Fa1 . ( ) ( . 11.2, 1 , . . , ). F, (15.6); ( = 20; , = 35) ( w = 20; βm=35) : Fr2 = Fal; Fa2 = Frl (15.8) (15.9)
: 2015-10-06; !; : 512 | : : , , . |