INDEX DRIVE SELECTION
7
INDEX DRIVE SELECTION
7.1 MASS -M-
π
m =
. r
. h . Y
2
(fig.34)
π
m =
. (r
- r
) . h . Y
2
2
1
(fig.35)
m = a . b . h . Y
(fig.36)
m = (a - a
) . (b - b
) . h . Y
1
1
(fig.37)
Y = specific weight
Steel
Alum.
Steel
Al.
[kg/m
]
7800
2700
3
dimensions
(a) (b) (h) (r)
7.2 MASSES' INERTIA
J = J
+ J
1
2
7.2a Masses rotating about their
own axis - J
-
1
d
2
J
= m . ----
1
8
d
+ d
2
2
1
J
= m . -----------
1
8
a
+ b
2
2
J
= m . ----------
1
12
a
+ a
+ b
+ b
2
2
2
1
J
= m . ---------------------
1
12
a
34
●
DIMENSIONAMENTO
7
DIMENSIONAMENTO
7.1 MASSA -M-
π
[ kg ]
m =
. r
. h . Y
2
(fig.34)
π
[ kg ]
m =
. (r
- r
2
(fig.35)
[ kg ]
m = a . b . h . Y
(fig.36)
[ kg ]
m = (a - a
) . (b - b
1
(fig.37)
Y = massa volumica
Plastics
acciai
Pvc
Acc.
1200
[kg/m
]
7800
3
[ m ]
dimensioni
7.2 INERZIE DI MASSA -J-
J = J
+ J
1
2
[ kg m
]
2
7.2a Masse rotanti attorno proprio
asse - J
d
2
J
= m . ----
(fig.38)
1
8
d
2
J
= m . -----------
1
(fig.39)
a
2
J
= m . ----------
1
(fig.40)
12
a
+ a
2
2
J
= m . ---------------------
1
1
(fig.41)
r
fig.34
b
fig.36
●
[ kg ]
) . h . Y
[ kg ]
2
1
[ kg ]
) . h . Y
[ kg ]
1
leghe
plastiche
All.
Pvc
2700
1200
(a) (b) (h) (r)
[ m ]
[ kg m
]
2
-
1
(fig.38)
+ d
2
1
(fig.39)
8
+ b
2
(fig.40)
+ b
+ b
2
2
2
1
1
(fig.41)
12
r
h
fig.35
b
1
h
a
DIMENSIONIERUNG
7
DIMENSIONIERUNG
7.1 MASSE -M-
π
m =
. r
. h . Y
[ kg ]
2
(fig.34)
π
m =
. (r
- r
) . h . Y
[ kg ]
2
2
1
(fig.35)
m = a . b . h . Y
[ kg ]
(fig.36)
m = (a - a
) . (b - b
) . h . Y
[ kg ]
1
1
(fig.37)
Y = Volumenmasse
Stähle
Legierungen
Stahl
Alu
[kg/m
]
7800
2700
3
Größe
(a) (b) (h) (r)
[ m ]
7.2 MASSETRÄGHEITEN -J-
J = J
+ J
[ kg m
1
2
7.2a Massen, die um ihre eigene
Achse drehen - J
-
1
d
2
J
= m . ----
(fig.38)
1
8
d
+ d
2
2
1
J
= m . -----------
(fig.39)
1
8
a
+ b
2
2
J
= m . ----------
(fig.40)
1
12
a
+ a
+ b
+ b
2
2
2
2
1
1
J
= m . ---------------------
(fig.41)
1
12
r
1
h
a
1
h
b
fig.37
C999/0/GT - 11/2020
Plastiken
Pvc
1200
]
2