.1 , , , .
.2 .
:
(.1)
- ( ), /2;
D L - 1 2 , /(2×);
D - ( 1 2 ), /2;
- , ( 0,08 -1);
- , ;
t - .
: ( ) .
.3
cm l m £ 24 cef(F)f(r) a1 Ddn /(RreqRo*),(.2)
l - , 1 2, (/2)/(2×/);
- , /3;
l - , /(×);
- , /×;
f ( F ) - ;
f ( r ) - ;
a1 - , ;
Dd - , (1) , C×;
- , (3) 23-02;
Rreq - , 23-02, 2×/;
Ro* - , 2×/.
f ( F ), f ( r ), a1 :
f (F) = (1 - Fp / F)-1, (.3)
Fp / F - , , ( );
f (r) = r (Rreq - Ro*)/(Rreq - rRo *), (.4)
Rreq Ro* - , (.2);
r - , (11);
a1 = [1 - (1 + E)- T ]/ E, (.5)
, - , (.1).
.4
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cm l m £ 24 cef(F)f(r) a2 Ddn /(RreqRo*),(.6)
a2 - ,
a2 = [1 - (1 + E)-(1+1/E)]/ E, (.7)
cm, l m, ce, f ( F ), f ( r ), - , .2.
.5 , (.2) (.6), . m l m, .
.6 , , . .
.7 , , .
. - l1 = 0,64 /(×) - l2= 0,58 /(×):
- -75 ( ) l = 0,045 /(×);
- --50 ( , . ) l = 0,041 /(×);
- -125 ( ) l = 0,044 /(×);
- 2-100 ( , . ) l = 0,044 /(×).
:
- d1 = 0,38 ;
- d2 = 0,12 ;
- - ;
- r = 0,84;
- Rreq = 3,33 2×/;
- - . , Dd = 5730 ×;
- = 115×10-6 /×;
- = 50 ;
- , , E = 0,1 -1.
1.
Ro* = Rsi + d1/l1 + d2/l2 + Rse = 0,114 + 0,38/0,04 + 0,12/0,58 + 0,043 = 0,958 2×/.
2.
f (F) = (1 - Fp / F) - 1 = 1,0;
f ( r ) = 0,84(3,33 - 0,958)/(3,33 - 0,84×0,958) = 0,789.
3.
a1 = [1 - (1 + 0,1)-50]/0,1 = 9,9 ;
a2 = [1 - (1 + 0,1)-(1+1/0,1)]/0,1 = 6,5 .
4. (.2) - (.6):
-
cm l m £ (24×115×10-6×1,0×0,789×9,9×5730×l)/(3,33×0,958) = 38,7 (/2)/(2×/);
-
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cm l m £ (24×115×10-6×l,0×0,789×6,5×5730×l)/(3,33×0,958) = 25,4 (/2)/(2×/).
5. l -:
- -75 ( ):
l = 20,3 (/2)/(2×/);
- --50 ( , . ):
l = 43,1 (/2)/(2×/);
- -125 ( ):
l = 31,7 (/2)/(2×/);
- 2-100 ( , . ):
l = 28,2 (/2)/(2×/);
6. , , -75 , l < 25,4 (/2)/(2×/).
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