Accession Number:

ADA050179

Title:

Electric Motor Reliability Model

Descriptive Note:

Final technical rept. Sep 1976-Sep 1977,

Corporate Author:

SHAKER RESEARCH CORP BALLSTON LAKE NY

Personal Author(s):

Report Date:

1977-12-01

Pagination or Media Count:

115.0

Abstract:

An existing data failure bank consisting of over 2000 actual fractional horsepower FHP motor failures was upgraded and utilized to develop a failure model for FHP motors. Motor failures were dominated by two failure modes i.e., winding failures and bearing failures. A mathematical reliability model was developed for each failure mode utilizing a Weibull cumulative distribution function and regression technique. Results of a literature survey of both failure modes were used to supplement failure data where required and verify the developed models. Failure modes were recombined into a competing risk cumulative distribution model for use in predicting overall motor life and failure rates.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE