Hitachi HDS723020BLA642 - Nonoperating Rotational Shock; Table 19 Sinusoidal Shock Wave; Table 20 Rotational Shock

Hitachi hard disk drive specifications
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6.6.4.2 Sinusoidal shock wave
The shape is approximately half-sine pulse. The figure below shows the maximum acceleration level and
duration.
Accleration level (m/sec
2
)
Duration (ms)
2940
2
1470
11
Table 19 Sinusoidal shock wave
6.6.5 Nonoperating Rotational shock
All shock inputs shall be applied around the actuator pivot axis.
Duration
Rad/sec
2
1 ms
30,000
2 ms
20,000
Table 20 Rotational Shock