Simulation aids JIT assembly line manufacture: A case study

Computer simulation techniques are used to evaluate the performance of a welding assembly line which requires modification to achieve some of the philosophies of a just-in-time manufacturing environment. The simulation of the existing line using GPSS/H confirmed the operational problems which had been previously identified, and allowed the validation of the computer model. The computer model was then altered to evaluate the performance of several alternative modified assembly lines which would avoid the present operational problems. The paper discusses some of the techniques used to develop these models, their simulation using the GPSS/H simulation language, and the benefits of using simulation in analysing manufacturing processes.