Few studies have examined shipbuilding production processes from a lean scheduling perspective, a production scheduling approach where the primary focus is on minimizing key sources of production waste while ensuring production continuity and on-time delivery. Specifically, this research develops a lean scheduling approach and analytical model for shipbuilding production processes that minimize two specific types of production waste - excessive overproduction and waiting time - critical to the economic viability and management of projects in this industry. From a lean practice-based view (PBV) perspective of the production scheduling nuances in shipbuilding, we develop and numerically apply a lean scheduling model that targets these specific sources of waste and predicts the performance improvement gains. The applicability of the proposed scheduling approach for shipbuilding production is demonstrated through a corresponding numerical and sensitivity analysis where we compare the proposed model's performance with two alternative Makespan scheduling approaches commonly used in shipbuilding practice. Exact optimization results show a significant reduction in both forms of wastes using our proposed lean scheduling approach, leading to a remarkable boost in shipbuilding cost performance over the more traditional Makespan-minimizing scheduling approaches commonly used in this industry.

很少有研究从精益调度的角度研究造船生产过程，这种生产调度方法的主要重点是最大限度地减少生产浪费的关键来源，同时确保生产连续性和按时交付。具体来说，这项研究为造船生产过程开发了一种精益调度方法和分析模型，可最大限度地减少两种特定类型的生产浪费——过度生产和等待时间——对于该行业项目的经济可行性和管理至关重要。从造船业生产调度细微差别的基于精益实践的观点 (PBV) 的角度来看，我们开发并在数值上应用了精益调度模型，该模型针对这些特定的浪费来源并预测性能改进收益。通过相应的数值和敏感性分析，我们将所提出的模型的性能与造船实践中常用的两种替代 Makespan 调度方法进行了比较，证明了所提出的调度方法对造船生产的适用性。精确的优化结果表明，使用我们提出的精益调度方法显着减少了两种形式的废物，与该行业常用的更传统的最小化生产周期调度方法相比，造船成本性能显着提高。