Study on Performance Evaluation of Multi-Station Assembly System Based on Stream of Variation

Abstract

Based on stream of variation theory, parametric state space model of multi-station assembly process was built up. For problems of system-level evaluation index, the sensitivity evaluation index, soundness index as three methods of assembly system performance evaluation, the comprehensive stability index was presented. Parametric state space model was as a tool and the comprehensive stability index was as evaluation index to optimize the assembly lines, reduce the geometric deviation of product, improve the quality of product. Experiment verified comprehensive stability index can accurately evaluate the performance of assembly systems, improve the efficiency of optimizing assembly lines.