S. M. Q o d ir o V, M. O. Q o d ir X o n o V

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Bog'liq
CJdZi0HhZkhxN7TFlanq

\2,3,4,5 1 Т

Tirsakli
val
krivoshiplari
orasidagi
burchak
K rivoship-shatunli m exanizm ga ta ’sir qiluvchi inersiya
kuchlari va m om en tlarin in g qiymati
2
180°
1 3 .1 -rasm
X
р!
= 0 ;
X
p j"
=
2 т р (°2л
c o s 2<р;
X A
=
° ;
i=i
M\ = mRco1
cosip •
a;
M n = 0 ; M R = m R (o2R e
3
120°
1 3 .2 -ra sm
X
p! - 0;
X
/>/ , = ° ; I ^ = 0 ; X A f ,
= m R
C O 2 -
l=\
a ■ (1,5 cos (p - 0 ,8 6 6 sin
X
A /z/ =
5 c o s
^ ) ;
Х А / , = l , 7 3 2 ^ a
4
120°
13 .3 -rasm
X
pJ
=
0;
X
Pj ' - 4mR(o2A.
c o s 2 « p ; X
=
0;
i=i
= 0 ; X w ( / = 0 ;
Х л / „ = 0
4
9 0 °
1 3 . 4 - r a s m
I
t
' = 0 ; I
Pj'
= 0 ; I
t t = 0 ;
1 Л / , = « .
m / t o j 2 - ( S c o s p - s i n ^ i ^ A / , / = 0 ;
£ Л / Д = л /Й )
PR a-
6
120°
1 3 . 5 - r a s m
' t pi
= ° ; I t "
= 0 ; I
/>, = 0 ; I
А / , = 0 ;
l M
„ = 0 ;
/=1
1
^
=
0
6
60°
1 3 . 6 - r a s m
I t ' =
° ;
I t " = ° ; l t i = 0 ;
= a
mRco2
■(3 c o s p - s i n
I
M „
= 0 ;
I
Л / я -
VTo
t i ' a
156

1 3 .1-rasrn. Ik k i silin d rli d v ig a te lla rn i m u v o z a n a tla s h .
rj i u
j l / 2
in
A
R 2
R3
R 2
3 0
R 2
R J
r3 0 '
13.2-rasm . U c h silin d rli d v ig ateln i m u v o z a n a tla sh .
157

J4-3
j 1 -2
rj H
j l l
2 ; 3
Z
R4-3
RI-2
13 .3 -ra sm . T o ‘r t s ilin d rli d v ig a te ln i m u v o z a n a tla s h
( tir s a k li v a l k riv o s h ip la ri o ra s id a g i b u rc h a k 1 8 0°).
j l l
j i n
JI4
j H 3
'////и/,
I - ////////,
4
13.4-rasm . T o ‘r t silin d rli d v ig a te ln i m u v o z a n a tla s h
(k r iv o s h ip la ri o r a s id a g i b u rc h a k 9 0 ° ).
158

ли
1,6
\2,3,4,5
1
Т
«1
,41—
Pjn
IjU
JU2
120е
Z
13.5-rasm . O lti silin d rli d v ig a te ln i m u v o z a n a tla s h
(k riv o s h ip la ri o ra s id a g i b u rc h a k 1 2 0°).
P ,n
PjU
PjlJ
P /14
РЛ5
P m
Pjlll
Pj/12
PjllS
P
j iu
PjllS
P
ji
/6
/ / / / /
77777
/ / / / / .
/ / / / / .
77777
/ / / / / .
/ / / / / .
/////.
77777
6
1 3 .6 -ra sm . O lti silin d rli d v ig a te ln i m u v o z a n a tla s h
(k riv o s h ip la ri o ra s id a g i b u r c h a k 6 0 °).
13.2. SILIN D RLA RI V -S IM O N JOYLASHGAN
DVIGATELLARNI MUVOZANATLASH
Odatda, K-simon dvigatellarni muvozanatlashda ular ikkita
bir qatorli dvigatellardan tashkil topgan, deb qaraladi. Agar
qatorli dvigateldagi (silindrlar soni va tirsakli valning tuzilishi
o ‘xshash boNsa) inersiya kuchlari muvozanatlashgan bo‘lsa,
ikki qatorli (K-simon) dvigatelda ham shu tartibdagi inersiya
kuchlari muvozanatlashgan boMadi.
159

K-simon dvigatellarda muvozanatlashmagan kuchlarning
qiymati bar bir qatorning silindrlaridagi muvozanatlashmagan
inersiya kuchlari vektorlarining geom etrik yig‘indisi orqali
a n iq lanad i. Bu holda q a to rla r orasidagi b u rc h a k hisobga
olinishi zarur.
K-simon dvigatellar qatorlari orasidagi burchak 60° va 90°
li qilib tayyorlanadi. U m um iy holda qatorlar orasidagi burchak
у deb qabul qilinadi va inersiya kuchlari quyidagicha hisob
lanadi.
Birinchi darajali inersiya kuchi:
i
=
i
C hap silindrning birinchi tartibli inersiya kuchi:
P jich
=mR(
0
2costp
;
o ‘ng
s i l i n d r n i k i
e sa
Pjlo. = mRoy cos(p(y-(p) bo‘ladi.
Ikkinchi tartibli inersiya kuchi:
У = 2----------------- ------- ------------------------------------------------------------------------

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