Environmental Specifications; Shock And Vibration; Table 2-1 Shock And Vibration - Western Digital Purple PR1200M Technical Reference Manual

WD Purple™ PR1200M
2.5

Environmental Specifications

2.5.1
Table 2-1. Shock and Vibration
Shock
Operating
Non-operating (2 ms)
Note: Half-sine wave, measured without shock isolation and without non-recoverable errors.
Rotational Shock Non-Operating
Amplitude
Duration
Vibration
Operating
Non-operating
Sweep Rate
Rotational Vibration
12.5 rad/sec
Frequency (Hz)
(Rad/sec
Drive Generated Vibration
Operating
Operating Vibration
Drives are tested by applying a random excitation in each linear axis, one axis at a
time. The drive incurs no physical damage and no hard errors while subjected to
continuous vibration not exceeding the level listed in Table 2-1. Operating
performance may degrade during periods of exposure to continuous vibration.
Non-Operating Vibration
Note: This specification applies to handling and transportation of unmounted drives.
Drives are tested by applying a random excitation in each linear axis, one axis at a
time. The drive incurs no physical damage when subjected to continuous vibration
not exceeding the level listed in Table 2-1.
Packaged Shock and Vibration
The shipping packaging is designed to meet the National/International Safe Transit
Association (N/ISTA) standards for packaged products. The drive incurs no physical
damage when subjected to the N/ISTA standards.
2679-800065-A03

Shock and Vibration

30G, 2 ms (read/write)
65G, 2 ms (read)
250G
20K rad/sec
2 ms
Linear: 20-300 Hz, 0.75G (0 to peak)
Random: 0.004 g
Linear: 20-500 Hz, 4.0G (0 to peak)
Random: 0.05 g
0.5 octave/minute minimum
2
based on the following PSD profile maintaining < 20% degradation:
20
0.035
2 2
) /Hz
0.2 gm-mm average with the drive in an unconstrained condition
RELEASED 5/4/17 (WD CONFIDENTIAL)
2
2
/Hz (10-300 Hz)
2
/Hz (10-300 Hz)
200 300 900
0.035 0.2 0.2
Specifications
1400 1500
0.002 0.002
7