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1 2006

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Wyznaczanie potencjału eksploatacyjnego obiektów pracujących w cyklach okresowo-ciągłych.

Heinrich M., Jasica G.

Zagadnienia Eksploatacji Maszyn

2006

Vol. 41, nr 1

127-135

W artykule przedstawiono zagadnienia związane z analizą potencjału eksploatacyjnego urządzeń pracujących w cyklach okresowo-ciągłych. Przeprowadzona analiza umożliwia sformułowanie wytycznych dotyczących strategii odnawiania.

In the paper is presented the problem of the exploitation potential of technical objects working in periodical-continuous cycles. The analysis has maken here let to prepare directions of renewal strategy. The each decision depends of overhaul life of objects. Practical use of presented model is realized by estimation of some exploitation indexes. The main index - the operation availability is closely joined with potential and task readiness. The literature and practical analysis let to connect functional and beginning availability with potential availability of objects. The process of investigation and estimation of exploitation indexes is determined by: analysis of failures and their reasons, analysis area assessment of operation and maintenance process, collection and processing of operation informations, decisions of continuation or closing the investigations. The complex renewals are making after determined periods of time. The damages between renewals don't change the failures intensity. After profilactic services objects must presented complete operation availability. During exploitation and renewal processes the costs of each operation should be closed considered. The optimal renewal strategy needs minimum of costs. Several standard references on quality management suggest considering costs under three headings, so that they can be identified, measured and controlled. These quality costs are the costs of all activities specifically directed at reliability and quality control, and the cost of failure. Quality costs are usually considered in three categories: prevention costs, appraisal costs, failure costs. Prevention costs include reliability efforts, quality control and management. Appraisal costs are those related to then process control and measurement. Filure costs are the global costs of unreliability obviously it is necessary to minimize the sum of quality and reliability costs over a suitably long period. Therefore the immediate costs of prevention and appraisal must be related to the anticipated effects on failure costs, which must be affected over several years.