MIL-DTL-82909A (OS)
FIGURE 2. Non-gunfire vibration test levels.
TABLE VI. Non-gunfire vibration test schedule.
Test Time per Axis (Minutes)
Number of Resonant Points
0
1
2
3
4
Dwell Time at Resonant Points
0
30
60
90
120
Total Vibration Cycling Time
180
150
120
90
60
Note: The vibration cycling sweep time from 5 Hz to 2,000 Hz and back to 5 Hz shall be 20 minutes.
(5) After completion on the non-gunfire vibration along axis II, the procedure shall be repeated
along the axis III orientation.
(6) After completing the non-gunfire at 70°F, the procedure outlined above shall be conducted
with two new battery packs at -65°F.
(7) After completing the non-gunfire at -65°F, the procedure outlined above shall be conducted
with two new battery packs at 200°F.
(8) Three battery packs, one from each temperature group, shall then be stored at 70°F until
functionally tested. The remaining three shall be submitted to the gunfire vibration test.
b. Gunfire vibration.
(1) Resonance search (50 Hz to 500 Hz): A resonance search shall be conducted on the
remaining three battery packs at 70°F in the axis I orientation (one at a time). The frequency sweep shall be
13
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business