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In the same manner, the moment of inertia of a cylinder as shown in the Fig. below is given by
2
In the same manner, the moment of inertia of a prism as shown in the Fig. below is given by
2-14
Moment of inertia of a cylinder
Center line
D
x
h
Moment of inertia of a prism
Center line
c
b
ρπD
D
2
h
2
I=
(
16
4
D
m
2
=
(
+
4
4
ρπD
h
D
2
2
J=
(
4
16g
D
2
W
=
(
+
4g
4
ρabc(a
2
+ b
I=
12
ρabc(a
2
+ b
J=
12g
x
W(a
2
+ b
2
=
a
12g
m : Mass of prism (kg)
W : Weight of prism (kgf)
ρπD
h
2
2
h x
2
+
)
+
3
4
h
2
) + mx
(kgm
2
)
2
3
ρπD
h
h x
2
2
2
+
)
+
3
4g
h
2
Wx
2
)
+
(kgfcmsec
2
)
g
3
... (6)
2
)
m(a
2
+b
2
)
+ ρabcx
=
2
+ mx
12
ρabcx
2
)
2
+
g
)
Wx
2
(kgfcmsec
2
)
+
g
... (7)
23208-F0-00
(kgm
2
)
2
23209-F0-00
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