Accession Number : ADA293947

Title :   Control Theory Methods in Product Quality Assurance: An Illustration of Open Loop Control. Rev,

Corporate Author : GEORGE WASHINGTON UNIV WASHINGTON DC INST FOR RELIABILITY AND RISK ANALYSIS

Personal Author(s) : Singpurwalla, Nozer D. ; Chen, Jingxian ; Murthy, Prabhakar

PDF Url : ADA293947

Report Date : 04 JUN 1993

Pagination or Media Count : 17

Abstract : This is the first of a series of papers that we are hoping to write, on the use of control theory methods for controlling the quality of manufactured items. Such methods involve decision making under uncertainty for a system whose dynamics are defined by equations that are suggested by physical or plausible laws. The emphasis of our paper is a single stage production system with open loop control. The output quality can be controlled via an optimal scheduling of machine maintenance and/or a switch to better input quality. We advocate a simple structure for undertaking the above task. Our hope is that future work in this area will involve an improvisation of our theme. The key virtue of the proposed approach is the optimality of decisions; its disadvantage is the need to make realistic assessments of prior distributions and loss functions. (AN)

Descriptors :   *OPTIMIZATION, *DECISION THEORY, *COMPUTER AIDED MANUFACTURING, *QUALITY ASSURANCE, MAINTENANCE, MATHEMATICAL MODELS, SCENARIOS, UNCERTAINTY, COMPUTATIONS, STOCHASTIC PROCESSES, DECISION MAKING, RANDOM VARIABLES, INPUT OUTPUT PROCESSING, SCHEDULING, PRODUCTION CONTROL, QUALITY CONTROL, DISCRETE DISTRIBUTION, CONTROL THEORY, OPEN LOOP SYSTEMS.

Subject Categories : Operations Research
      Mfg & Industrial Eng & Control of Product Sys
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE