p e rp e n d ik u la r e k a n lig i a n iq . Y o ‘ q i esa kuch te k is lig id a y o tu v c h i o ‘ q d ir. X
o ‘ q i a jra tilg a n kesim ga t ik y o ‘ nalgan. K e sim d a k o o rd in a ta la ri у va z boMgan
e le m e n ta r y u z a c h a d A a jra ta m iz . U m u m iy h o ld a
elem entda ham n o rm a l a ,
ham u rin m a x k u c h la n is h la r
h o s il boM adi. A m m o s o f
e g ilis h d a u rin m a
k u c h la n is h la r b ila n bogM iq boMgan barcha z o ‘ riq is h la r n o l b o M g a n lig i sab
a b li e le m e n ta r yu za ch a d A ga fa q a t d N = c rd A z o ‘ riq is h ta ’ s ir e ta d i. B iz n -
in g h o i u ch u n s ta tik a n in g 6 ta tenglam asidan fa q a t uchtasi y a ro q lid ir:
N =
JcrdA;
M v = jcrZdA;
M z - jcrydA
(
7
. ] )
A
A
A
S o f e g ilis h d a b a lk a fa q a t e g u vch i m o m e n t M ta ’ s irid a
boM gani u ch u n
N =
0;
M y =
0;
M z = M
boMadi.
(7 .2 ).
(7 .2 ) n i (7 .1 ) ga q o ‘ ysak,
jcrdA =
0;
jcrZdA
= 0;
|
crydA = M
(j-±)
A
A
A
k e lib c h iq a d i.
B a lk a n in g s o f e g ilis h g a is h la y d ig a n q is m id a n b ir boM akcha a jra ta m iz
( 7 . 15-rasm , a).
B oM akchadagi m -m va n - n k e s im la r o ra s i
dagi m asofa d x ga teng. B oM akcha e g u v c h i m o
m e n t M ta ’ s irid a e g ila d i ( 7 .15-rasm , b). B u n d a
m - m va n - n k e s im la ri te k is lig ic h a q o la d i va
o ‘ zaro dcp
b u rch a k ta s h k il q ila d i.
N e y tra l qat-
la m d a yo tg a n
a0 b0
to la d e fo rm a ts iy a n a tija s id a
ra d iu s i r boMgan y o y h o s il q ila d i. N e y tra l qat-
lam dan u m asofada yo tg a n
Yüklə
Dostları ilə paylaş: 
