. .
: ; .
, , , , , , , (C1C2 . 63.1). , .
, . . 63.1 , :
F , ;
Q , Qn Qt ;
N .
) :
F - Qt = 0, (1)
) :
Qn - N = 0, (2)
) . H F r ( r) - h, :
Fr - Nh = 0. (3)
(3), F h. , , F , , h, ,
hm º k, (4)
F . F, (1) Qt, :
Qt = F , (5)
k Qn, (2) N, . . (1), (3) (5) , :
. (6)
, ..-.
(. 63.2). , . . . , , . , (. . 63.2) , .
|
|
, ji i, . , , . S, n , j0 jn ji j0 jn:
S = 4 = 2n (j0 + jn) = 2nl (j0 + jn),
l .
. 63.3 j0 ( . 2) jn ( ' . 2). D '. . 3,
D = mg D h = mg D l sinb, (8)
D l D h ;
b (. . 63.2);
j0;
B¢ jn.
, , , D B¢ D :
D =D . (9)
Dl , . 63.2,
D l=l (cosjn-cosj0). (10)
( j0 £10), , . , N = mg cosb (. . 63.3), S:
A = FS = k S = S. (11)
D E . (7) (11) , , :
k = tgb . (12)
, (12) : , , ; , , . , , [1, 2].
1. b ( 30 60). , ( , b = 90 - g, g - , ). b 1.
|
|
1
1 | ||||
b | . | jm | j1 | k1 |
k1 = |
2
2 | ||||
b | . | jm | j2 | k2 |
k2 = |
3
3 | ||||
b | . | jm | j3 | k3 |
k3 = |
2. .
3. , .
4. j05 . jm 10 . 6 , j1, j2, j6 j0. 1. j1:
j1 = . (13)
j1 1.
5. . 2 ¸ 4 . 2. (13) j2.
6. . 2 ¸ 4 3, 3.
7. b . , . 2 ¸ 6, . .
8. b. . 2 ¸ 4 . .
9. r. .
10. j1 b, (12) k1 , k1. 1.
: (12), j j0 : j ()= j ()´ p 180.
. k2 k2 2.
3. k3 k3 3.
11. D1 k/k
|
r, . 9, b, j0, , . b , . , D r = 0,1, D b =2, D j =0,5.
12. D2 k/k :
|
|
. (15)
(15) : , , , cos j 1 - 0,5j2, (12) :
k = tgb (j0 - jcp).
, r, n, j0, b
½ D k ½ = tgb ½ D j ½.
, (15).
D¢ j (15) j1, j2, j6, b ( ). W = 95% , , = 6 aC 2,6, D¢ j:
D¢ j = a . (16)
|
, (17)
k D k .
1. ?
2. : ) ; ) ?
3. ?
4. ?
5. ?
6. ?
7. , ?
8. (12).
9. (16).
10. .
1. . . .- .: , 1963. - . II, . 9, 11.
2. .. .- .: . 1972. - . 1.
3. . . 60 - 63. - .: . , 1976. - . .
4. . / .., .., .. .; . . ... - .: , 1995. - 38 .
6 | ........................... | .. 3 |
61 | .......................... | ..12 |
63 | ..................... | ..20 |
-
,