Accession Number:

AD0292141

Title:

EXTENSION OF ELECTRONIC EQUIPMENT LIFE PREDICTION STUDY

Descriptive Note:

Corporate Author:

MOTOROLA INC SCOTTSDALE ARIZ

Personal Author(s):

Report Date:

1962-09-15

Pagination or Media Count:

1.0

Abstract:

Efforts were continued on determining the feasibility of providing field instrumentation capable of measuring the rate of degradation of performance of electronic equipment. Strains resulting from the present stresses are not a function of time. The stress values being used are too far inside the design limits of the radio sets. A temporary instability in test results, as a function of disassembly for calibration purposes, was observed. In an attempt to eliminate faulty data, a 12 x 12 tensor matrix A was formulated using only the three basic stresses. The reference row on the raw data card was maximized and fixed. Only slight correlation was obtained. y utilizing the foregoing and maintaining a constantly increasing tensor matrix, smooth tracking resulted. A new approach utilizing the characteristic equation for a three by three tensor matrix was programmed. Another approach utilizing a direct vector reduction of the data instead of a matrix solution was initiated. Results have provided successful prediction in 40 of the failures checked. Testing of the ANPRC-6 radio sets is continuing with no change in procedre. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE