u 0 = u 1 u 2... ui, ui - i - .
:
u ¢0 = u u =, (1.3)
u - ;
u - ( ) .
(. 2 )
u = u 1× u 2 = =,
u ¢ = u ¢0/ u .
, u = u u , u - ; u T - .
.
( , . 2, u. - .3 .)
u . , u ³ u. .
.3 / / u .
R20 8032-84:
1; 1,12; 1,25; 1,4; 1,6; 1,8; 2; 2,24; 2,5;2,8; 3,15; 3,55; 4; 4,5; 5; 5,6; 6,3; 7,1; 8; 9; 10; 11,2; 12,5; 14; 16; 18; 20, 22,4; 25; 28; 31,5; 35,5; 40; 45; 50; 56; 63; 71; 80; 100 .. .
u ¢0 . 1.3.
1.3. u ¢0.
- | u ¢0 | u ¢ | u ¢ | u ¢T | u | u T | u | u | u 0 | D u 0% | ||
:
D u 0 = (u ¢0 - u 0)×100% / u ¢0 = £ [4%],
u ¢0 - , ; u 0 - .
i - (i = 1, 2. 3...k; i = 1 - ; i = k - ):
ni = n 1 / u 1- i , (1.5)
u 1- i - i - .
i - :
|
|
i = T . / (ui-khi-k),
(1.6)
ui - k, hi-k - i- k- ( ) ; . -
= .
n, -1, (1.5) i, ., (1.6) ( - . .1.3) .1.4.
1.4.
(i) | |||||
u 1- i | ni, -1 | Ti_, × | |||
I | |||||
II | |||||
III | |||||
IV | |||||
V | |||||