1 . , , , .
. . , , , , . , .
, . .
.
.
1
( ) . ( ):
1) ( ), . .
2) .
3) , , .
4) : ; .
5) . 3- .
S Fix = 0
S Fiy = 0
S Mo. (Fi) = 0
0 .
, . . , .
.1
.1.1
, 1.1. , . =5 , = 2 , q = 1 /. 1.1.
: =5 a=30 1= 1
=2 b=45 2= 2
q =1 / ℓ =10
___________________________________
: RA RB
1. .
2. , , XAY.
3. : - , - - .
. - , , , . .
|
|
3. .
Q = qa1 =1
, , , :
.1.2
.1.2
4. , , , RB- .
5. :
S Fix =0; XA-Pcos 45-RBsin30=0 (1)
S Fiy =0; YA-Q Psin45 +RBcos30=0 (2)
SMA(Fi) =0; (3)
(3)
(1):
(2):
RA :
, , .
: RA = 5,87 , RB = 2,85