Hitachi HTS541612J9SA00 manual Vibration and shock, Operating vibration, Random vibration

Models: HTS541640J9SA00 HTS541616J9SA00 HTS541680J9SA00 HTS541612J9SA00 HTS541660J9SA00

1 167
Download 167 pages 31.29 Kb
Page 34
Image 34
6.5Vibration and shock

Travelstar 5K160 (SATA) Hard Disk Drive Specification

6.5Vibration and shock

All vibration and shock measurements in this section are for drives without mounting attachments for systems. The input level shall be applied to the normal drive mounting points.

Vibration tests and shock tests are to be conducted by mounting the drive to a table using the bottom four mounting holes.

6.5.1Operating vibration

The drive will operate without a hard error while being subjected to the following vibration levels.

6.5.1.1 Random vibration

The test consists of 30 minutes of random vibration using the power spectral density (PSD) levels below. The vibration test level is 6.57 m/sec2 RMS (Root Mean Square) (0.67 G RMS).

Random vibration PSD profile Breakpoint

Hz

m x 10n (m2/sec4)/Hz

5

1.9 x E–3

17

1.1 x E–1

45

1.1 x E–1

48

7.7 x E–1

62

7.7 x E–1

65

9.6 x E–1

150

9.6 x E–1

200

4.8 x E–2

500

4.8 x E–2

 

 

Table 17. Random vibration PSD profile breakpoints (operating)

6.5.1.2Swept sine vibration

Swept sine vibration (zero to peak 5 to

Sweep rate (oct/min)

500 to 5 Hz sine wave)

 

9.8 m/sec2 (1 G) (5-500 Hz)

1.0

Table 18. Swept sine vibration

34/167

Page 34
Image 34
Hitachi HTS541612J9SA00, HTS541640J9SA00 Vibration and shock, Operating vibration, Random vibration, Swept sine vibration