Accession Number : ADA134955

Title :   Preventive Maintenance on Space Systems.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF SYSTEMS AND LOGISTICS

Personal Author(s) : Mariotti,J , Jr

PDF Url : ADA134955

Report Date : Sep 1983

Pagination or Media Count : 93

Abstract : With the advent of an operational Space Transportation System, many opportunities for activities in space exist. Maintenance of on-orbit satellite systems is one such application. Planners need techniques to evaluate the appropriate maintenance category; i.e., whether a preventive maintenance program is feasible or should a corrective maintenance scheme be applied. This study demonstrates a simple yet technically accurate graphical estimating methodology, known as the Total-Time-on-Test plot. Specifically, using this technique in conjunction with on-orbit life data from Traveling Wave Tube Assemblies located aboard second generation Defense Satellite Communications System (DSCS-II) and North Atlantic Treaty Organization Phase III (NATO III) satellites, preventive maintenance on these items is shown not to be the method of choice. Further, techniques are demonstrated for determining estimated optimal maintenance intervals using failure and repair costs should preventive maintenance be demonstrated as a feasible maintenance category. (Author)

Descriptors :   *Space maintenance, *Cost effectiveness, *Preventive maintenance, Cost estimates, Space transportation, Graphs, Optimization, Failure, Corrections, Repair, Costs, Life expectancy(Service life), Spacecraft components, Reliability, Mathematical models, Statistical analysis, Maintenance management, Scheduling, Time intervals, Theses

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE