Contribution to development of new risk analysis methods

Abstract

A real analysis or prediction of possible failure modes of any system represents a necessary basis of every project the purpose of which is to increase reliability, which especially applies to development of new systems. This paper shows how one of the most widely used failure analysis methods - method of Failure Modes and Effects Analysis - FMEA, can be improved by eliminating the shortcomings observed in the so far, rather varied application in different areas. This is illustrated by the example of an analysis of a large tram rolling stock. We have paid a great deal of attention to risk analysis and direct inclusion of this parametre into the known FMEA method, insisting on the inconsistencies. of the traditional FMEA method. The result of our efforts is a new, in our opinion, improved approach to technical system failure analysis, which, beside the so far used parametres, introduces a new dimension into the whole process, through the cost and risk analysis.