Accession Number : AD0739155

Title :   An Approximation Procedure for the Calculation of Transient State Availability.

Descriptive Note : Research rept.,

Corporate Author : ARMY MATERIEL COMMAND TEXARKANA TEX INTERN TRAINING CENTER

Personal Author(s) : Smith,Philip T.

Report Date : MAY 1970

Pagination or Media Count : 92

Abstract : The primary objective of the paper is to develop an alternate procedure to present methods of transient availability calculation. To do this discrete density approximations are substituted for continuous probability distributions, and the sum is formed of all mutually exclusive event probabilities that lead to an operational system at some future time. This approach is not limited by the type of repair or failure distribution exhibited by the system. With this procedure it is demonstrated that oscillations exist for availability functions that have failure and repair distributions other than exponential. Methods are discussed that can reduce the amplitude of these oscillations and improve the over-all availability of the system. (Author)

Descriptors :   (*RELIABILITY, STATISTICAL ANALYSIS), (*MAINTAINABILITY, ARMY EQUIPMENT), APPROXIMATION(MATHEMATICS), DISTRIBUTION FUNCTIONS, CURVE FITTING, COMPUTER PROGRAMS, THESES

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Logistics, Military Facilities and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE