Wk
3
=
a,h 3b; =
0 ,2 8 8 • 9 ,5 • 2 2 = 10,9
sm
3;
J „ = P A hl
= 0 , 2 8 8 -9 ,5 - 2 3 = 2 1 ,
9sm 4;
i
= ^
= 2
sn,.
Wk,
10,9
S hunday q ilib ,
J k = J k] + J k2 + J k3
= 3 3 , 2 + 2 ,5 + 2 1 ,9
s m4 = 5 7 , 6 s m
4
E ng ka tta n isb a t Jki / W ki b irin c h i elem e n tg a t o ‘ g ‘ ri k e ly a p ti, shuning
u ch u n eng katta u rin m a k u ch la n ish x shu ele m e n t katta to m o n in in g o 'rta s id a
h o s il boM adi:
Wk
= -
Jk
=
= 2 1 ,
2 s n f
;
J J W kx
2 ,7 2
M„
5 0 0 - IO"6
r
= ----- ----------------- — = 2 3
, 6 M P a
:
1
Wh
2 1 ,2 -1 0
г
к
S te rje n n in g b u ra lish burchagi
М. Л
5 0 0 -1 0
-5
a
= ------- = --------
-
----------------- - = 0 ,0 5 4 2
rad
6.4. Buralishga hisoblashda o‘rgatuvchi kompyuter texnologiyasi
{ M } = GIp / \
M a z k u r p a ra g ra f buralishga is h la yd ig a n e le m e n tla m i S h E H M y o rd a m i
da hisoblashga bag‘ ishlangan.
Chap u ch i m ahkam langan va k o 'n d a la n g k e s im i d o ira v iy b o 'lg a n ster
je n n in g boshqa u ch ig a m o m e n ti M ga teng b o 'lg a n j u f t k u c h q o 'y ilg a n . B u
ju f t kuch s te rje n n in g k o 'n d a la n g kesim yuzasida y o ta d i ( 6 . 12-rasm ). M a z
k u r j u f t k u c h ta ’ s irid a ste rje n n in g e rk in k o 'n d a la n g ke s im i m ahkam langan
kesim ga nisbatan a yla n ib , sterjen d e fo rm a tsiya la n a d i.
S te rje n n i b u ra lis h g a h is o b la s h d a b i k r li k m a trits a s i tu z ila d i. B u n d a
c h o 'z ilis h d a g i k o 'c h is h o 'm ig a buralish burchagi aniq la n a d i, e la s tik lik m o d u li
va k o 'n d a la n g kesim yuzasi esa mos ravishda s iljis h m o d u li v a q u tb in e rs i
y a m o m e n tla ri b ila n a lm a s h tirila d i:
'
1
- 1
- 1
1 _
S te ije n la m in g bura lish in i hisoblash uchun m azkur dastur tuzilgan. D astlab
k i m a ’ lu m o tla m i E H M g a k iritis h ta rtib i va hisob n a tija la ri q u yid a k e ltirilg a n .
D a s tla b k i m a ’ lu m o tla m i k ir itin g (n is b iy q iy m a tla r)
A k e s im id a g i m o m e n t = -3 ,0 0 N .m
В k e s im id a g i m o m e n t = - 2 ,0 0 N .m
С k e s im id a g i m o m e n t = 1,00 N .m
1 -o ra liq u z u n lig i = 1,00 m
2 -o ra liq u z u n lig i = 1,00 m
3 -o ra liq u z u n lig i = 2,00 m
M n in g q iy m a ti (N ) = 5000.00 N m
R uxsat e tilg a n k u c h la n is h (M P a ) = 70,00 M P a
Q ayta к о 'r ib c h iq is h ke ra km i? U /N
1 -o ra liq
2 -o ra liq
3 -o ra liq
“
+
+
A
В
4
С
к
1.0
1,1.0
I.
2 .0
[
6 .12-rasm.
N a tija la r .
Y u q o rid a k o 'rs a tilg a n k iris h a x b o ro tin i ta yyo rla g a n d a n s o 'n g m ashina
a v to m a tik ravishda ko n stru ksiya n i hisoblaydi va ekranga q u y id a g i k o 'rin is h d a
n a tija la r c h iq a zad i.
1 -o ra liq
2 -o ra liq
3 -o ra liq
+
+
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