:
1. .
2. .
1. .
.
, (W 6, .8):
= 3 = 3 U I cos j = UI cos j.
, , , :
= + + .
, , , . .1.
:
= 0,
; ;
= Re ( + + ) = Re [() +() ] =
= Re { + } = UABIAcos ( ) + UCBIC cos ( ).
.1 .2
.2.
= UI [ cos (30+ j) + cos (30- j)]. (2)
(2) , j = 0 ( ) , j = 60 , j > 60 . , .
(.3)
(.4) (), ( 1, 2), (), .
. .
.
(1).
.3 .4
2. .
(). . 5.
1, 2 . , IU , U L. U 3. L , . , I, I. I .
|
|
, . , , :
M = K 1 UI sin y, (4)
y - U I.
U , I - , , ,
sin y = cos j, (5)
j - U I.
.5
M = K 2 UI cos j = K 2 P, (6)
. :
= K 3 . (7)
= . (6) (7) , K 2 = K 3 ,
= W - , t;
= 2 pN,
N t;
W = = CN, (8)
C - , , .
. , , . :
1/ = N0 .
:
= . (9)
, (5), (.6).
, y U I : y = b - aI -j. (5) , b - aI = 90 b = 90 + aI.
M = 2 UIcos j = K 2 P.
b > 90 L (L> U). b - aI = 90 aI 4 5 6.
7. .7.
.6 .7
3.
cos j . , U Z I - . cos j = .
1. . .
|
|
2. , .8.
.8
3. Z :
) (.9);
) - (.10);
) - (.11).
4. . , 60 . 60 , (9), (8). .
.9 .10 .11
W 1 W 2 , , :
P = P 1 + P 2.
, , :
W = W 4 + W 5.
P 1, | P 2, | P 3, | W 4, | W 5, | P 6, | I, | U | P, | W, | cosj | j | |
R | ||||||||||||
R-L . | ||||||||||||
R-L . |
:
j = arccos = arccos .
.
P = P 1 + P 2 = P 3 = P 4 + P 5 = 3 P 6.
1. , .
2. ? .
3. ? .
4. ? .
5. ? .
6. .
7. ?
8. ?
9. , ? ? .
10. j ?
1. / . . . . .: , 1986. . 272-286, 304-310.
2. . : . : , 1976. . 130-136.