, ( p-n-).
, , (. 7.1,), , . 20 5000 . (. 7.1,) ; . 5000 , , .
, | (7.1) |
- ; / ; S- ; d ; C- ; P . S < 5 2.
. | (7.2) |
, | (7.3) |
- , ; - ; - ; L - .
() a , ,
, | (7.4) |
- ( l b); - ; - ( ).
Q ,
; | (7.5) |
, | (7.6) |
- ; - ; rb - .
, | (7.7) |
R=R0l/b - .
, , . , 10 , , , , .
: i; ; Upi; fi; Qi; ( t, T) , .
|
|
: ; ; ; .
. , , , E, , ( ), . , 㳿 㳺 . . .2.1.
0. 0, :
, | (7.8) |
K = (24) - ; Up - .
, . , . 0,5 , R0 = 0,05-0,07 /. (. .1.3).
. ,
; | (7.9) |
, | (7.10) |
- C0, . ; - , .
䳺 , . ³ 䳺
, | (7.11) |
Tmax- .
³ ,
, | (7.12) |
- 1000 ; t - .
, mCT, mCCT sCT, s. 䳺 , .
|
|
g :
g = g0 + gS + gCT + gCCT; | (7.13) |
. | (7.14) |
gi > g, .
gSi , :
gSi = gCi - gC0 - gCT - gCCT; | (7.15) |
, | (7.16) |
( ); - .
㳿 , , 0 g0 gs , (. 7.1,,,,).
(. 7.1,), , l b S = lb . rlb1.
, (. 7.1,) l b ( ). rlb0.
³
= l / b. | (7.17) |
, S = lb, :
; . | (7.18) |
, Dl = Db, sl = sb. ³ gs :
, rlb1, | (7.19) |
, rlb1, | (7.20) |
, rlb0, | (7.21) |
, rlb0. | (7.22) |
= 1 (. 7.1,,) .
(7.15) (7.16) (7.19 7.22). Si, , :
, rlb1, | (7.23) |
, rlb1, | (7.24) |
, rlb0, | (7.25) |
, rlb0. | (7.26) |
Si , . :
, rlb1, | (7.27) |
, rlb1, | (7.28) |
, rlb0, | (7.29) |
, rlb0. | (7.30) |
.
1. .
2. (7.8).
3. C0. (7.2).
4. C0. S = i /0. . S ³ 10 2, , (rlb1) (. 7.1,). 5 2 ³ S >1 2, (. 7.1,6) , , (rlb0) . 7.1,.
5. C0.. , C0. (7.27 7.30). KԳ = li / bi, , . KԳ=1.
6. C0.. C0. .
|
|
0. = min (C0. , C0.). | (7.31) |
0 . , , , 0 .
7.
Si = (1 / K)Ci / C0, | (7.32) |
K- , . Ci /C0 > 52, = 1, 1£ Ci /C0 £ 52
K = 1,3 - 0,06 Ci /C0. | (7.33) |
8. .
( 6, 6.1.5).
. ³ 0 . 60 220 . .
. - Si ( C0).
㳿. S. - d1 = 2Dl̲.
d2 ³ 2Dl̲ + UP, | (7.34) |
= (2-3)10-3 /.
, Ci /C0 < (0,5 - 1) 2, ' , 2 (. 7.1,).
bi a , UP. bi (. 7.1,) b ( , ).
(7.35) |
. L/(b1+a+b2) > 5 N . lCP = L/N. ³ 0,2.