MIL-STD-810F Method 514.5 - Vibration
Vibration testing is performed to determine the resistance of equipment to vibrational stresses expected in its shipment and application environments. Vibration can cause:
Wire chafing.
Loosening of fasteners.
Intermittent electrical contacts.
Touching and shorting of electrical parts.
Seal deformation.
Component fatigue.
Display / Touch Panel misalignment.
Cracking and rupturing.
Excessive electrical noise.
Two Vibration tests are performed on the TDS Recon, figures 17 (general) & 18 (helicopters). The minimum integrity (general) test is a Power Spectral Density = 0.04G²/Hz, 20 to 1000Hz, descending 6dB/oct to 2000Hz. Three axes are tested, 1-hour per axis. Figure 18 (helicopters) is a Logarithmic sweep 5 to 500Hz beginning at 0.20" displacement, 30 minutes per axis.