Abstract:

his paper proceeds with the existed limitations analyzing as while DBR was used to solve the uncertainties in remanufacturing system and takes the end of life engine remanufacturing system as an example. On the basis of qualitative analysis in the aspects as definition, calculation model and applicable conditions between inventorybuffer and timebuffer control mechanism, their implementation effects were compared and analyzed by simulation experiments. Simulating experiments show that two kinds of buffer control mechanism are of high goal consistency, i.e., they both enable Resource Utilization of bottleneck (RU) and System Productivity (SP) increased, average Work In Process (WIP) in front of bottleneck (BW) and WIP in total process (TW) decreased. From the perspective of DBR principles and its goals, the latter has better performance than the former in the following three aspects as buffer effect, objective realization for management of system and controllability of production planning.

Key words: system engineering, remanufacturing, drum-buffer-rope, inventory buffer, time buffer