Research Initiation: Economies of Production through Duplicating Bottleneck Machines and Subcontracting Bottleneck Parts in Cellular Manufacturing

研究启动：单元化制造中通过复制瓶颈机器和分包瓶颈零件来提高生产经济性

• 批准号: 9108507
• 负责人: Rasaratnam Logendran
• 金额: $ 7.02万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-15 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9108507&HistoricalAwards=false
• 关键词: Research; Initiation; Economies; Production; through

Ideally in cellular manufacturing systems, a family of parts will be processed in its entirety within a machine cell that consists of one or more machine types. In most practical problems a non-ideal situation prevails, in that the individual part and machine groupings are usually connected. A part might require processing in a cell other than its own (called a bottleneck part). Similarly, a machine can process a part assigned to a cell other than its own (called a bottleneck machine). Research investigations have been reported to attain economies of production, either by duplicating bottleneck machines or by subcontracting bottleneck parts. The research takes an integrated approach to develop a linear binary programming model for a cellular manufacturing system which simultaneously utilizes machine duplication and part subcontracting to maximize net savings in costs. As the linear model representation has been proven to be NP-hard, a heuristic solution algorithm will be developed. Suitable measures of performance have been established to determine the accuracy of the solution and the effectiveness of the algorithm. Given the budgetary restriction a parts manufacturing company has to work with, the solution algorithm for the model, and the subsequent development of hosts of computer programs, will determine the bottleneck machines that need to be duplicated and the bottleneck parts that need to be subcontracted.

理想情况下，在单元式制造系统中，一系列零件将在由一种或多种机器类型组成的机床单元中进行整体加工。在大多数实际问题中，不理想的情况占了上风，因为单个部件和机器组合通常是相连的。部件可能需要在其自身以外的单元中进行处理(称为瓶颈部件)。同样，机器可以处理分配给单元而不是自己的单元的部件(称为瓶颈机器)。据报道，研究调查通过复制瓶颈机器或分包瓶颈部件来实现生产经济。该研究采用集成的方法，建立了单元制造系统的线性二进制规划模型，该模型同时利用机器复制和零件分包来最大限度地节省净成本。由于线性模型表示已被证明是NP难的，因此将开发一种启发式求解算法。建立了适当的性能度量，以确定解的准确性和算法的有效性。考虑到零部件制造公司必须处理的预算限制，模型的求解算法以及随后的计算机程序主机的开发将确定需要复制的瓶颈机器和需要分包的瓶颈部件。