" "
( )
4
: .
: (), , , , .
() , ( ).
(. 4.1). ( , , ). , :
= Iε. (4.1)
,
I ,
ε .
. 4.1 ,
, (4.2)
m ;
mg;
b .
, j, .
: j ( , . 4.1, , ).
, 
, (4.1), (4.2)
(4.3.)
( ) 
, (4.3) I :
(4.4)
mgb/I :
(4.5)
(4.4)
(4.6)
, , (4.6)
(4.7)
, 
( ), .
(4.8)
I/mb . L :
L=I/mb (4.9)
,
(4.10)
(4.10)
l ,
, , .
, L>b. ,
|
|
|
I = Ic+mb 2,
I , .
, (4.9)
(4.11)
, L>b
O 1 (. 4.1) L, .
1 (. 4.2). - 2, . 1 2 3.
4, .
I 1 I 2 1 2. , ( ) (. (4.8)).
, b (. . 4.1), m g :
(4.12)
1. , b 1= O 1 C b 2= O 2 C (. . 4.2) D b .
. 4.1; .
4.1
| / | N | 1 | 2 | ||||
| t 1 | T 1 | t 2 | T 2 | (T 2 i < T 2>) | (T 2 i < T 2>)2 | ||
| b 1 =________ L 1= m =2,570 b 2 =________ L 2= g =9,81 /2 |
2. 1, 
t 1 30-50 (N) ( , ). ( ) .
3. , O 2 , .2.
4. 1 2 < 1> < 2>.
5. 
(. (4.12)) < I 1> < I 2>.
6. I 2 ε 1,2 D I 2 ( I 1 ).
2 i =< 2>, ( 2 i =< 2>)2, S( 2 i =< 2>)2 (. .).
,
n ;
D t ,
( a n);
I 2:
D I 2= εi < I 2>
7. :
I 1=< I 1> DI 1 I 2=< I 2> DI 2, α = εi =
8. L 1 L 2 
. l L 1 ( L 2) .
|
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1. .
2. ( ).
. .
4. .
5. .
6. I .
7. .
1. .. : . 5- . - .: - ; - һ, 2002.
2. .. : . .-7- ., . - .: , 2003.
3. .. : . - .: , 2002.
4. .. : . . - /.: , 2004.
