Travelstar 5K100 Hard Disk Drive Specification
34
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.
Note: Overall RMS (root mean square) level of vibration is 29.50 m/sec
2
(3.01 G).
6.5.2.2 Swept sine vibration
•49 m/sec
2
(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
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.
The shocks are applied for each direction of the drive for three mutually perpendicular axes, one axis at a time.
Input levels are measured on a base plate where the drive is attached with four screws
Table 21: Random Vibration PSD Profile Breakpoints (nonoperating)
Hz (m2/sec4)/Hz
2.5 0.096
52.88
40 1.73
500 1.73
Table 22: Operating shock
Duration of 1 ms Duration of 2 ms Duration of 11 ms
1568 m/sec
2
(160 G) 2940 m/sec
2
(300 G) 147 m/sec
2
(15 G)
Table 23: Nonoperating shock
Duration of 1 ms Duration of 11 ms
9800 m/sec
2
(1000 G) 1470 m/sec
2
(150 G)
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