TITLE:
Productivity Monitoring of Land Pipelines Welding via Control Chart Using the Monte Carlo Simulation
AUTHORS:
Pedro Mattos Tabim, Miguel Luiz Ribeiro Ferreira
KEYWORDS:
Monte Carlo Simulation, Welding, Land Pipelines, Productivity
JOURNAL NAME:
Journal of Software Engineering and Applications,
Vol.8 No.10,
October
20,
2015
ABSTRACT: This article evaluates the efficacy of a
tool developed in the Monte Carlo simulation and referred to as control chart.
This tool is used in order to detect changes in productivity resulting from the
occurrence of a given event during the welding of land pipelines with self
shielded flux cored wire (FCAW). The elaboration of this control chart is based
on the data from the Cumulative Probability Density Function (CDF) curve, and
generated in the Monte Carlo simulation using version 6 of the Palisade
Corporation’s @Risk software for Excel, in a sample with productivity data from
29 welded joints, gathered through direct observation which considers the
productive and unproductive times. In order to evaluate the control chart
efficacy, the performance of welding productivity with a FCAW process with low
alloy steels has been assessed during 29 days, summing up to 842 welded joints
registered on “Relatórios Diários de Obras” (Construction Works Daily Reports).
The results show that the model developed for the control chart elaboration is
effective in monitoring the productivity of the observed welding procedure.