World Journal of Engineering Research and Technology

*Christian Ighohor Okonta and Raphael Olumese Edokpia

ABSTRACT

For manufacturers to remain productive in a very competitive global environment, the high-level production challenges must be addressed and yield across the entire production line must be high and continuous. In this work, we modelled the performance losses of a series production line that are often ignored by literature because of their little duration in terms of failure classification. Developing a model to this effect would assist in evaluating the impact of minor losses on the line performance and also as a measurement index for determining the effectiveness of maintenance strategies on loss eradications. The result shows that the performance losses follow a non-homogeneous Poisson process. For easy evaluation of the proportion of downtime resulting from minor stops, the mean arrival rate was utilised. The cumulative downtime from minor stops is more than that of the breakdown which has received much attention. From the model, the proportion of downtime which accounts for about 6.25 per cent of the available time could be used as a maintenance performance indicator.

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