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Vibration testing is performed to determine the resistance of equipment to vibrational stresses
expected in its shipment and application environments. Vibration can cause:
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Wire chafing.
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Loosening of fasteners.
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Intermittent electrical contacts.
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Touching and shorting of electrical parts.
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Seal deformation.
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Component fatigue.
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Display / Touch Panel misalignment.
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Cracking and rupturing.
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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.
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