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Loudness
The acoustic emission values [loudness in dB(A)] for the Universal Storage
Platform VM storage system are:
Front/rear = 65 dB(A)
Both sides = 65 dB(A)
Vibration and Shock
Table 2-9 lists the vibration and shock tolerance data for the Universal Storage
Platform VM. The USP VM can be subjected to vibration and shock up to these
limits and still perform normally. The user should consider these requirements
if installing the storage system near large generators located on the floor
above or below the storage system. Generators or any other source of
vibration, if not insulated or shock-mounted, can cause excessive vibration
that may affect the storage system.
Table 2-9 Vibration and Shock Tolerances
Condition
Parameter Operating Non-Operating Shipping or Storage
Vibration 5-10 Hz: 0.25 mm
10-300 Hz: 0.49 m/s
2
5-10 Hz: 2.5 mm
10-70 Hz: 4.9m/s
2
70-99 Hz: 0.05 mm
99-300 Hz: 9.8m/s
2
Sine Vibration:
*2
4.9 m/s
2
, 5 min.
At the resonant frequency with the
highest displacement found between
3 and 100 Hz.
Random Vibration:
*3
0.147 m
2
/s
3
, 30 min., 5-100 Hz
Shock -- 78.4 m/s
2
, 15 ms
Horizontal:
Incline Impact 4 ft/s (1.22 m/s)
*4
Vertical:
Rotational Edge 0.5 ft (0.15 m)
*5
Notes:
1. The vibration specifications apply to all three axes.
2. See ASTM D999-91, Standard Methods for Vibration Testing of Shipping Containers
3. See ASTM D4728-01 Test Method for Random Vibration Testing of Shipping Containers
4. See ASTM D5277-92, Standard Test Methods for Performing Programmed Horizontal Impacts Using
an Inclined Impact Tester.
5. See ASTM D6055-96, Standard Test Methods for Mechanical Handling of Unitized Loads and Large
Shipping Cases and Crates.
Installation Requirements 2-21
Hitachi Universal Storage Platform VM Installation Planning Guide