回收品质量水平的再制造系统研究

研究了考虑回收品质量水平的再制造系统的模型.在模型中消费者需求由新产品制造和回收品再制造来满足,假设回收品质量水平服从指数分布;回收率、回收成本、再制造成本都是有关回收品最低质量水平的函数,建立平均总成本函数.结果表明:当回收产品的质量水平低时,则回收成本低,虽然再制造成本高,但是平均总成本低,制造商更愿意以成本最低的方式回收较低质量水平的回收品.通过粒子群算法和灵敏度分析,验证了该模型的有效性.

Strategies for Remanufacturing System with Consideration of the Quality of Recycled Products

The model of recycled products was investigated with consideration of the minimum quality level in remanufacturing system.In the model,the consumer's demand was satisfied by manufacturing raw materials and remanufacturing recycled products.The quality level of recycled products was set to be of exponential distribution and then the model with the objective of minimizing the average total cost was constructed.It was assumed that in establishing the model,the functions of recycling rate,buyback cost and remanufacturing cost are related to the minimum quality level.The results show that if the quality of the recycled products is low,the buyback cost is low;though the remanufacturing cost is high,the average total cost is low;the manufacturers are willing to recycle the used products with low quality level.Through construction of a solution process of particle swarm optimization and with resorting to numerical examples with sensitive analysis,the validity of the model was proved.