Post on 21-Nov-2015
description
Dinamika prenosnika
wmrN1rb1
A BD
E
Varijacija krutosti zubaca
t
w
t
c
O2rb2
ra2
ra1
rb1
bb
O1
t
c
t
c
F(t )
t
F(fi)
fifI=f fI=2f fI=3f fI=4fT
( ) ( ) ( )
=
+=1
2sini
iii tffFtF pi
mr 1
rb1
A
E mr 2
rb 2
vs
v
s
/
n
Fn/b
pb=0
pb
Razliita odstupanjageometrije
Kv
2
1
dokritino kritino nadkritino
fr0,85fr 1,15fr f
0 2 4 6 8 10
m/s
Stepen
tolerancije 10 9 8
7
6
5
4
3
0 2 4 6 8
Kv Kv
10 9 8 7
6
5
4
3
1001vz
2,0
1,8
1,6
1,4
1,2
1,0
1,5
1,4
1,3
1,2
1,1
1,0
21
11
br
r
Jm = 2
2
22
br
r
Jm =
( )tFxcxbxm ee =++ &&&
21
21
rr
rre
mm
mmm
+=
mr1 mr2
cemr 1
rb 1
mr 2
rb 2
x
F(t)
F(t)1x(t)1
c b
F(t)1x(t)1
c b
F(t)2
1
2FF
T =
m
cfr pi21
=
( ) fFtF pi2sin11 =( ) fFtF pi2sin22 =
21
11
br
r
Jm =
22
22
br
r
Jm =
21
21
rr
rre
mm
mmm
+=
mr1 mr2
cemr 1
rb 1
mr 2
rb 2
x
F(t)
211125,110220
21
21 60
=
==
pipi ert
m
cf
5,20587,0106,8 2322222111 ===== brbr rJmrJm
25,15,25,25,25,2
21
21=
+
=
+=
rr
rre
mm
mmm
Hz
kg
Hz
83360
25200060
=
==
nzf Hz
n
3f 2f
f
f
fr1 fr2
fr3
fri
f/fn f/fn