Nonoperating Vibration; Operating Shock; Nonoperating Shock; Table 20. Random Vibration Psd Profile Breakpoints (Nonoperating) - Hitachi 7K100 - Travelstar - Hard Drive Specifications

6.5.2 Nonoperating vibration

The disk drive withstands the vibration levels described below without any loss or permanent damage.
6.5.2.1 Random vibration
The test consists of a random vibration applied in each of three mutually perpendicular axes for a duration of
15 minutes per axis. The PSD levels for the test simulating the shipping and relocation environment is shown
below.
Table 20: Random Vibration PSD Profile Breakpoints (nonoperating)
Hz
2.5
5
40
500
Note: Overall RMS (root mean square) level of vibration is 29.50 m/sec
6.5.2.2 Swept sine vibration
2
• 49 m/sec (5 G) (zero-to-peak), 5 to 500 to 10 Hz sine wave
• 0.5 oct/min sweep rate
• 25.4 mm (peak-to-peak) displacement, 5 to 10 to 5 Hz

6.5.3 Operating shock

The hard disk drive meets the criteria in the table below while operating under these conditions:
• The shock test consists of 10 shock inputs in each axis and direction for a total of 60.
• There must be a minimum delay of 3 seconds between shock pulses.
• The disk drive will operate without a hard error while subjected to the following half-sine shock pulse
Table 21: Operating shock
Duration of 1 ms
2
1568 m/sec (160 G)
The input level shall be applied to the normal disk drive subsystem mounting points used to secure the drive in a
normal system.

6.5.4 Nonoperating shock

The drive withstands the following half-sine shock pulse without any data loss or permanent damage.
Table 22: Nonoperating shock
Duration of 1 ms
2
9800 m/sec (1000 G)
(m2/sec4)/Hz
0.096
2.88
1.73
1.73
Duration of 2 ms
2940 m/sec (300 G)
Duration of 11 ms
2
1470 m/sec (150 G)
Travelstar 7K100 Hard Disk Drive Specification
31
2
(3.01 G).
Duration of 11 ms
2
147 m/sec (15 G)