Stability - HP System/E41 User Manual

Chapter 3

Stability

For stability, the sum of the moments above the 32 U critical height must be less than the sum of the
moments below the 32 U critical height. As long as the weight above critical height is less than the weight
below, the moments will most likely cancel. The center of gravity of the cabinet itself is well below the
critical height, adding stability. Because the racks are deeper than they are wide, they are more stable from
front to back, than side to side, as shown in Figure 3-4.
Vertical axis
Xí
X
W
11.0
Figure 3-3. Critical Height
10 degrees
Y
Z
TAN 10 degees = 11.0/Z
Z = 11.0/TAN 10 degrees
Z = 62.4 in (1.58 m)
1.96 m 41U
62.4 32U
Critical
height
Installation Guidelines
13