Analytical models for a new turnover-based hybrid storage policy in unit-load warehouses
针对单深货架、单指令人工存取的低层单元载荷仓库，建立了基于分类和全周转率存储策略的分析模型，提出一种新的混合产品放置方案，并通过仿真和实际案例验证了模型准确性，混合策略优于传统策略，为仓库管理者提供了设计规则。
This paper considers a low-level unit-load warehouse employing single-deep storage lanes and a single-command manual storage and retrieval policy. Analytical travel distance models are developed for class-based and full turnover storage policies under across-aisle, within-aisle and a newly proposed hybrid product placement schemes. Our computational studies show that the analytical models developed in this paper are very accurate as compared to simulation results and a comparative study with a real-world warehouse case. Hybrid storage policies proposed in this paper outperform all other traditional storage policies. The paper also presents insights and simple design rules to warehouse practitioners.