HSD
2. For each elementary part, calculate the centre of gravity as indicated below.
In the formulas shown below, the following symbols are used:
G : centre of gravity
X : absolute position of the centre of gravity
i b : relative position of the centre of gravity;
V : volume;
m : mass;
d : density (in the absence of data supplied by the toolmaker, use the following general
densities: Iron: 7850kg/m3; Aluminium: 2100kg/m3).
3. Elementary formulas for calculating the centre of gravity:
3.1. Cylindrical segment (possibly cable):
Posizione
G
: b =
h
2
Volume : V = (r2-r1)2 h
Massa : m = Vd
bG
h
3.2. Conical segment:
Posizione
G
:
b
=
h(r22 +2r2r1+3r12)
4(r22+r2r1+r12 )
Volume
:
V
=
1
3
(r22
+r2r1+r12
)
Massa : m = Vd
bG
h
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