Mechanical production line simulation and optimization analysis

A simulation system as a desktop resource named NEU-Simulation is developed by using the object-oriented simulation package eM-Plant^R.. The simulated manufacturing system is a medium-sized equipment manufacturer which produces NC machine products. The simulation system adopts object-oriented modeling methods based on UML to simulate equipment manufacturing system. The Neuromodulation is used by various manufacturing personnel as a tool to support decision-making. The simulation model developed is only partially successful. The emphasis in this paper is placed on the design of the machining production line. And four types of factors such as the number of equipment, machine tool operations time, buffer size and the number of employees etc. are considered and analyzed by using design of experiment (DOE) method to locate the bottlenecks of production line. Reduction of the number of simulation experiments can be realized by the Orthogonal experimental design method. The result of simulation analysis is used to guide the design and reconstruction of production line. In the course of the development of simulation system It is realized that some enterprise information system such as workshop management systems, production management systems, etc. must be integrated into simulation system to share the basic data, timely access to the latest production data. Only in this way can reduce the preparation and the maintenance of basic data of simulation system before simulation.