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Balanced Technology Extended (BTX) Thermal/Mechanical Design Information
5.2.1.1
Random Vibration Test Procedure
Recommended performance requirement for a system:
Duration: 10 min/axis, 3 axes
Frequency Range: 5 Hz to 500 Hz
5 Hz @ .001 g2/Hz to 20 Hz @ 0.01 g2/Hz (slope up)
20 Hz to 500 Hz @ 0.01 g2/Hz (flat)
Power Spectral Density (PSD) Profile: 2.2 G RMS
Figure 5-2. Random Vibration PSD
0.0001
5.2.1.2
Shock Test Procedure
Recommended performance requirement for a system:
Quantity: 2 drops for + and - directions in each of 3 perpendicular axes (i.e., total
Profile:
Setup:
Thermal and Mechanical Design Guidelines
0.1
0.01
0.001
1
12 drops).
25 G trapezoidal waveform
225 in/sec minimum velocity change. (systems > 20 lbm)
250 in/sec minimum velocity change. (systems < 20 lbm)
Mount sample system on tester.
Vibration System Level
+ 3 dB Control Limit
- 3 dB Control Limit
10
100
Hz
1000
47
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