Model-Based System Engineering Approach to Design Customized Puzzle-Based Movable Rack Systems

The Puzzle-Based Movable Rack (PBMR) system is a new type of warehouse storage system that enhance the performance of Puzzle-based storage (PBS) systems with a new compact configuration where unit loads can be moved using racks on autonomous wheels in multi-directions. Various storage and movement policies are employed to optimize system performance, enhancing both density and throughput. To implement the proposed storage solution, we consider the PMBR system from an engineering-to-order (ETO) perspective. In this study, we investigate the design process of the PBMR system considering it as an ETO product with the support of a model-based system engineering approach. Utilizing methods and tools from the system engineering discipline facilitates defining warehouse functions, systems, and the necessary resources for system implementation. This enables comprehensive documentation of all stages of warehouse design. Furthermore, these warehouse models can seamlessly integrate with various analyses and existing domain knowledge, thereby bolstering warehouse design decisions. Further, There are the necessary technical and theoretical foundations in place for reliable PBMR design, which also offer insights into how the other ETO products and related system designs could be implemented.