( ) : (. . ) - (.4.150).
DF1 ( 2/p): DF1 = = 1/t1 , . . >>t1.
, , DF = . ,
Dp = p = Tp/t1l,
Dp . , , 1/DF = t1, , . -
t1. 2/p 1 = 1/ t1 (. . 4.151,). ' DF1= 1/t1, 2 (. . 4.151,):
, ( 2/p) , , . ( ) . t2 , , b deg (.4.150),
t1 (.4.151,). . : t2 ³t1.
t2 min = tm t2 = t1,
(t2 > t1) .
, tm . , (. . DF1), .
, D2 , . . 2 t2, (.4.151,):
|
|
. (4.72)
, , , D2 , . , . , - (.4.151, )
. (4.73)
, , , . , , , , . . , .
, , . . .