, , .. . . 2.5.2. . 2.5.1 . ts , t1 , , t2 , , .
s
q
t1 t2 t1 t2 t1 t2 t1 t1 t2
ts ts ts ts ts
. 2.5.2. . .
, s q, q - s, t2.
.2.5.2
t1 / ts = s / q, t2 / ts = (q s) / q. (2.5.5)
t1 s/2. t1 t1c2s/2. c3 , t2, (q s)/2, t2c3(q s)/2. , ts c1 + t1c2s/2 + t2c3(q s)/2 , ts, :
c1/ ts + (t1 /ts)c2s/2 + (t2 /ts)c3(q s)/2.
(2.5.5) ts = q / b, q s:
(q, s) = 1b/q + 2s2/(2q) + c3(q s)2/(2q). (2.5.6)
(2.5.6) q* s*, (2.5.6) . /q, /s :
s = q3 /(2 + 3), (2.5.7)
q2 3 - (2 + 3)s2 = 21b.
q s,
q* = Ö2 1´b/ 2 Ö(2 + 3)/ 3 s* = q*3 /(2 + 3). (2.5.8)
:
* = (q*, s*) =Ö212bÖ3 /(2 + 3). (2.5.9)
:
ts* = q* /b = Ö2 1/(b 2)Ö(2 + 3)/ 3. (2.5.10)
, , , (2.5.2)-(2.5.4) (2.5.8)-(2.5.10), 3 ¥, , . , , , .. Ör =Ö3/(2+3) < 1. r - .
2.5.3. 2.5.1, 3 0.4 . . (2.5.8)-(2.5.10) :
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q* = Ö2´1000´100/0.2Ö(0.2 + 0.4)/ 0.4 = 1225 .,
s* = 1225´0.4 /(0.2 + 0.4) = 817 .,
* = 365Ö2´1000´0.2´100Ö0.4 /(0.2 + 0.4) = 59604 .,
ts* = 1225 /100 = 12.25 .
1225 817 = 408 .