An Optimum Decision on an Inspecton Period of a Production Mechine with Fuzzy Reasoning

Abstract

An optimum decision on a production machine inspection period is difficult because there are some failures and large loss cost for maker, if period is too long, on the other hand there is no economial policy due to many machine stops and inspection labor costs, if the period is short, A model equation on the inspection period is studied in maintainability engineering, but some fuzzy elements as a failure distribution form and a repair time are involved in the model equation. In this paper those fuzzy elements are inferred with fuzzy reasoning, and the optimum inspection period is based on a model equation.