Accession Number:

ADA067560

Title:

Reliability Control Model for Stored Items Requiring Rework.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s):

• Ferreira,Paulo Antonio

Report Date:

1978-12-01

Pagination or Media Count:

117.0

Abstract:

An application of control theory to an administrative problem is given for the case of a system of stored items which are periodically reworked to improve their reliability. Expressions are developed for the final value of the reliability when the system is stable and the limits of stability are found. A Kalman filter is used in the control model to obtain an estimation of the item reliability when there are random errors in the measurement and in the rework process. An extension is done for more than one dimension for systems composed of subsystems in series, parallel or a combination of both. A procedure for an optimal sequence of levels of rework is found in the sense of optimizing a linear combination of several performance measures. Numerical examples are presented to demonstrate the use of the several expressions. Author

Descriptors:

• *OPERATIONS RESEARCH
• *INVENTORY CONTROL
• MATHEMATICAL MODELS
• LOGISTICS SUPPORT
• MANAGEMENT PLANNING AND CONTROL
• KALMAN FILTERING
• THESES
• RELIABILITY
• CONTROL THEORY
• STORAGE
• DYNAMIC PROGRAMMING

Subject Categories:

• Operations Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE