bu yerda:
—tu p ro q n in g m e ta ll b ilan ish q alan ish k o effitsiy en ti; y - k e s is h
b u rch ag i, g rad . (v = 5 0 ° .. .55°).
Kurak bo‘ylab harakatlanuvchi tuproqning qarshiligi:
Buldozerning liarakatlanishdagi
qarshilik;
F B=
m R' g' (f^ 'co stp
• siii^), kN„
bu yerda: да - a s o s m a s h in a s in in g m assa ( o g ir lig i) si, t; / (n- a s o s m a s h in a sin in g
h a ra k a td a g i
q a rs h ilik koeffitsiy en ti;
уг-jo y n in g
q iy alik
b u rch ag i,
g rad
0£cs><20.
b) yuruvchi (transport) holatida, b-rasm.
Umumiy qarshilik:
Z F + F + F + F h,
kN.
[R
b
m
s P
bu yerda: B u ld o z e rn in g h a ra k a tla n ish d a g i q a rsh ilik :
FB
=
mB ■
g ■
( f m
■
с о щ
±
simp), kN,
bu y e rd a
m —
asos m a s h in a sin in g m a s sa (og‘irligi) si, t;_/^ - a s o s m a s h in a s in in g
h a ra k a td a g i
q a rs h ilik koeffitsiy en ti;
^ - j o y n in g
q iy a lik b u rch ag i,
grad
Q<(p<2Q. F
.- in e r s iy a q a rs h ilig i, kN;
77
G-v
F-"=—Г ’
g-tp
bu yerda: G - m a s h in a n in g o g ‘irlik k u ch i, kN ; v - m a s h in a n in g h a ra k a t teziig i,
m /sek; ? - h a y d a s h (razgon) v aq ti, sek (tp= 3 ...4 sek); F ^ - h a v o (sh am o l)n in g
q a rsh ilig i, kN .
( v ± v j , k N ,
bu
y erd a:
Dostları ilə paylaş: 
