关键词: 混流装配, 数字孪生, 资源配置, 优化

Abstract: Aiming at the problems of low efficiency,poor timeliness and insufficient dynamic response ability in resource allocation optimization of mixed-model assembly lines,a digital twin-based resource allocation optimization method for mixed-model assembly lines was proposed.A digital twin model of resource allocation optimization for physical assembly workshop,virtual assembly workshop and production planning system was constructed,and the realization process of resource allocation optimization based on the combination of segmented decoupling and multi-objective optimization was described.The method was applied to a mixed-model assembly line of an enterprise.The results showed that the balance rate of the assembly line after optimization increased from 64.15% to 81.84%,and the daily output of the factory increased by 28.35%.It provided an effective new way to optimize the resource allocation of mixed-model assembly lines.

Key words: mixed-model assembly, digital twin, resource allocation, optimization