Vibration
The 2 articles in the technical library tagged "Vibration", newest first.
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Sine Sweep or Random Vibration - Matching the Excitation Source to the Failure Criterion
Sine sweep and random vibration are not a looser and a stricter version of the same test; they answer two different questions - where the structure is weak, and how much margin is left. This article gives three questions that fix the choice, a selection matrix, the reason the order matters when both are run, and the five items a report must show.
Reliability test list for wiring harness connectors, and the failure modes they catch
Harness and connector failures usually start where you cannot see them: a small drift in contact resistance gradually turns into a vehicle-level fault.
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