车间设备布局建模分析及基于eM-Plant的仿真优化

发布时间：2018-08-02 21:25

【摘要】：车间设备布局是企业生产规划的关键问题，如何设计出一个好的设备布局，使之既满足车间环境的约束又使物流成本最小，这不仅是企业关心的核心问题，也是国内外学者研究的热门课题。论文针对企业的需求，结合实际生产情况，运用遗传算法和计算机仿真技术为企业寻求优化的设备布局设计。首先，阐述了国内外关于车间设备布局问题的研究现状，研究了离散事件系统仿真技术的主要步骤和方法，以及在车间设备布局中的应用；然后，通过研究现有车间布局模型和算法，结合实际车间情况建立了复杂车间设备布局数学模型，并根据遗传算法思想，设计了适合实际情况的遗传操作算子，，运用MATLAB遗传工具箱实现了初始布局的求解；论文最后使用仿真软件eM-Plant验证了初始布局的有效性，定义了三个评价指标并对初始布局进行分析，为寻求更加完善的布局方案，论文提出了三个改进方向，包括提高设备加工性能、增加关键设备数量和改进工艺路线。仿真结果证明，改进后的方案三在产能和单位物流成本方面具有明显优势，可以给企业带来更可观的经济效益。论文将遗传算法和计算机仿真技术有效结合起来，针对企业特定生产情况成功地求解出相应的布局模型，给企业减少了设计成本，研究成果给其他企业生产车间设备布局设计具有很好的借鉴意义。
[Abstract]:The layout of workshop equipment is the key problem of enterprise production planning. How to design a good layout of equipment to meet the constraints of workshop environment and minimize logistics costs is not only the core issue of enterprise concern. It is also a hot topic for scholars at home and abroad. According to the demand of the enterprise and the actual production situation, the paper applies genetic algorithm and computer simulation technology to seek the optimized equipment layout design for the enterprise. Firstly, the research status of workshop equipment layout at home and abroad is described, the main steps and methods of discrete event system simulation technology and its application in workshop equipment layout are studied. By studying the existing workshop layout models and algorithms, the mathematical model of complex workshop equipment layout is established in combination with the actual workshop conditions. According to the idea of genetic algorithm, the genetic operation operator suitable for the actual situation is designed. MATLAB genetic toolbox is used to solve the initial layout. Finally, the effectiveness of the initial layout is verified by using the simulation software eM-Plant, three evaluation indexes are defined and the initial layout is analyzed in order to find a more perfect layout scheme. This paper puts forward three improvement directions, including improving the processing performance of the equipment, increasing the number of key equipment and improving the process route. The simulation results show that the improved scheme III has obvious advantages in terms of production capacity and unit logistics cost, and can bring more considerable economic benefits to enterprises. In this paper, the genetic algorithm and computer simulation technology are effectively combined to solve the corresponding layout model successfully according to the specific production situation of the enterprise, which reduces the design cost for the enterprise. The research results can be used for reference in the layout design of workshop equipment in other enterprises.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH181

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