Lean Improvement of the Fuzzy Overall Equipment Effectiveness for the Half-Bearing Production Processes using the System Dynamics Simulation

This research presents the problem of decreasing the production efficiency of the Half-bearing production process resulting in parts production quantities not meeting the target. The OEE is used as a production efficiency index, which measures availability rate, performance efficiency and quality rate. The characteristic of production data in practice is dynamic behaviour. The objectives of this research are to analyze problems of the half-bearing production process to make improvements using OEE assuming time and loss to be TFNs. The research method is to develop a system dynamics model to analyze %OEE, whereas %OEE before improvements ranges between 67–72%. The improvement operations are waste reduction, planned maintenance, system testing and tool change. The results found that the %OEE after improvement range between 70–77% and the %improvement range between 3–11%.