Random Vibration Screening to Improve Hardware

The use of random vibration as a workmanship screen is now an integral part of many environmental stress screening programs. This paper shows how random vibration screening was used to detect hardware deficiencies and the methods used to correct them, early in the production of a standard Navy signal processor. The classification and analysis of screening data permits the early identification of problem areas, which are then ordered for the most efficient application of the familiar Test, Analyze, and Fix (TAAF) approach. After corrective action is implemented, the same data analysis tools determine the effectiveness of the corrective action in reducing failures and preventing reoccurrence of the same problem.