t n ^ - ^ - + C
z = 0.
л*2
p
d t
( 9 9 )
Bu te n g lam a quyidagi yechim ga ega:
z =
max
• s i n
t,
s m ;
( 10 0
)
b o ‘lgani u c h u n
z — ZmM ’ sin (o
• t;
( 1 0 1
)
bu yerda:
z,
Zmax
- tebranish am plitudalari;
t —
tebranish davri;
(o —
erkin tebranishning burchakli chastotasi;
Cp -
prujina bikrligi.
Oxirgi (101) te n g lam a d an g a rm o n ik
tebranishdagi yurish
ravonligi o ‘lcham larini aniqlash m um kin.
Tebranish tezligi:
Oxirgi form ulaga k o ‘ra, osm an in g statik deformatsiyasi
f*
q a n c h a lik katta b o ‘lsa, o sm a s h u n c h a lik y u m s h o q b o ‘ladi,
avtom obilning komfortabelligi esa ortadi.
Yengil avtom obillar u c hun... fs, = 100...250 m m ;
Yuk avtomobillari uchun... fst = 60... 120 m m ;
Avtobuslar uch u n ... fst = 100...200 m m .
a
dt
tebranish tezlanishi:
v a = — = z max • ( У - c o s 6У / , s m / s ;
