Hitachi IC25N040ATMR04-0 Specifications - Page 44

Nonoperating vibration, Operating shock

Page 44 highlights

6.5.1.2 Swept sine vibration Table 19: Swept sine vibration Swept sine vibration (zero to peak 5 to 500 to 5 Hz sine wave) 9.8 m/sec2 (1 G) (5-500 Hz) Sweep rate (oct/min) 2.0 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 (m2/sec4)/Hz 2.5 0.096 5 2.88 40 1.73 500 1.73 Note: Overall RMS (root mean square) level of vibration is 3.01 G rms. 6.5.2.2 Swept sine vibration • 49 m/sec2 (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 2 ms 1960 m/sec2 (200 G) Duration of 11 ms 147 m/sec2 (15 G) Travelstar 80GN Hard Disk Drive Specification 34

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Travelstar 80GN Hard Disk Drive Specification
34
6.5.1.2
Swept sine vibration
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.
Note:
Overall RMS (root mean square) level of vibration is 3.01 G rms.
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
Table 19: Swept sine vibration
Swept sine vibration
(zero to peak 5 to 500 to 5 Hz
sine wave)
Sweep rate (oct/min)
9.8 m/sec
2
(1 G) (5-500 Hz)
2.0
Table 20: Random Vibration PSD Profile Breakpoints (nonoperating)
Hz
(m2/sec4)/Hz
2.5
0.096
5
2.88
40
1.73
500
1.73
Table 21: Operating shock
Duration of 2 ms
Duration of 11 ms
1960 m/sec
2
(200 G)
147 m/sec
2
(15 G)