:
.
- , , , . .
.
My, z - ;
y, z - , ;
A - ;
Iy, Iz - .
, . , -5, . 1. 1 2 3. 3 4. 5. 6.
P (. 2).
.
, 
e - .
1, 2, 3 (. . 2)
,
,
y 1 = y 3 = d, Iz - .
(3) (+ - , - ). 1 3 .
1, 2 3 . 4. 1, 2 3 (. . 2).
1. , , 0 ( ) 1, 2 3.
2. 1= P 0+D P .
3. 2= P 0+2×D P .
4. (. ).
5. .
6. :
K s - , /.
7. s 1, 2 3 (3) =D P.
8.
9. .
|
|
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10
: ..
..
K s =...
h =..; b =.; e =..;
A = bh =..=.c2; 
==.c4; E =.
y 1 = d =.; y 2 = 0; y 3 = d =...
| , | ||||||
| 1 | 2 | 3 | ||||
| n 1 | D n 1 | n 2 | D n 2 | n 3 | D n 3 | |
| P 0= | ||||||
| P 1= | ||||||
| P 2= | ||||||
| P 3= | ||||||
| D P = |  =
|  =
|  =
|
,
1: 
==; 2: 
==; 3: 
==..
= =, 
=... =...,
= =.
==%; 
==%;
==%.
....
..
