支持复杂应用状态的一维优化下料系统研究及其应用

发布时间：2018-03-15 02:20

本文选题：一维优化下料　切入点：复杂应用状态　出处：《重庆大学》2012年硕士论文　论文类型：学位论文

【摘要】：实施绿色制造与低碳制造是制造业减少资源消耗强度的重要途径，减少物料消耗和能源消耗是企业实施绿色制造的具体手段。优化下料技术是实现减少物料消耗的一项具体实用技术，作为控制原材料利用率的重点环节，通过采用合理的优化下料技术，对减少有限资源的浪费和减少碳排放起着积极而关键的作用。传统的优化下料注重于排料的数学意义上的最优，缺乏对优化下料复杂应用状态及其处理方法的系统性研究，难以适应企业实际下料问题应用状态的变化性和应用状态模式的多样性，制约了优化下料技术应用的整体效果。本文围绕目前优化下料存在的问题，对支持复杂应用状态的一维优化下料系统及其实用技术进行了深入研究。首先，分析了国内外一维优化下料技术的研究现状，针对现有研究的不足和企业急需解决的优化下料问题，建立了一维优化下料复杂应用状态结构模型以及一维优化下料复杂应用状态关联与影响评价模型；对复杂应用状态下一维优化下料系统处理方法进行了研究，建立了支持复杂应用状态下一维优化下料问题的优化决策过程模型。接着，在分析复杂应用状态一维优化下料问题特点的基础上，，提炼总结了系统的应用需求，建立了支持复杂应用状态下一维优化下料系统的结构体系和功能体系。然后，针对大规模下料方式给优化下料问题带来的原材料利用率和时间求解效率的矛盾问题进行了深入研究，提出了一种原材料不确定状态下的一维优化下料方法。该方法首先根据订购件和标准件的下料特性，建立原材料订购件与标准件混合下料的优化数学模型；然后提出并实现了一种基于零件下料配合特征的有限递进复合求解方法，并通过应用实例证明了该方法的可行性和有效性。最后，以国家863/CIMS目标产品“建筑金属结构计算机辅助设计与生产管理集成系统”中的一维优化下料子系统为基础，基于上述研究结论开发了支持复杂应用状态的一维优化下料系统。论文的研究内容是国家自然科学基金项目的重要组成部分，其研究结论和开发的产品是2011年度高等学校科学研究优秀成果奖科学技术进步二等奖获奖项目“支持复杂应用需求的优化下料关键技术及应用”的重要组成内容，软件系统已经在上百家企业中得到推广应用；在减少物料资源消耗、提高企业的生产制造水平方面，取得了较好的应用效果。
[Abstract]:The implementation of green manufacturing and low carbon manufacturing is an important way to reduce manufacturing resource consumption, reduce material consumption and energy consumption are the specific means of implementation of green manufacturing enterprises. The optimized cutting technology is a practical technology toreduce material consumption, which mainly controls the material utilization rate of the link, through the use of reasonable optimization blanking technology, to reduce the waste of limited resources and reduce carbon emissions plays an active and key role. The optimal mathematical significance of traditional optimization to discharge the lack of systematic study on the complex application state and its processing method of the optimization of the enterprise, it is difficult to adapt to the actual diversity of the material application the change of state and application state mode, which restricts the overall effect of optimized cutting technique. This paper focuses on the current optimization problems, to support complex applications One dimensional optimal feeding system and its practical technology are studied in depth.
Firstly, analyzes the research status of material technology at home and abroad under the one-dimensional optimization, optimization solution for the lack of existing research and enterprises need cutting problem, a one-dimensional optimization model of complex structure and application status of one dimension material associated with the effect of application of complex model evaluation; optimization of complex application state of one-dimensional material the system processing method is studied, an optimization decision process model of one dimension material optimization for complicated application state.
Then, on the basis of analyzing the characteristics of one-dimensional optimization cutting stock problem of complex application state, we summarize the application requirements of the system and establish a structural system and functional system supporting one-dimensional optimization cutting system in complex application state.
Then, in-depth study of the utilization rate of raw materials and the efficiency of solving the contradictions of time to optimize the material mass materials problems, proposed a one-dimensional optimization under the condition of uncertain raw material feeding method. Firstly, according to the order parts and standard parts of the material properties, the establishment of raw material order parts and standard parts combination material optimization mathematical model; and then presents the design and implementation of a finite progression compound method based on cutting stock characteristics of parts, and the feasibility and validity of this method is proved by application.
Finally, based on the one-dimensional optimization material system in the national 863/CIMS target product "building metal structure CAD and production management integrated system", based on the above conclusions, a one-dimensional optimization cutting system supporting complex application state is developed.
The content of this paper is an important part of the National Natural Science Fund project, the conclusion of the study and development of the product is 2011 year high school scientific research award for outstanding achievements in science and technology progress two prize winning projects "support complex application needs optimization of key technology and application of" an important component of software system has been. Applied in hundreds of enterprises; in reducing the material consumption, improve the level of manufacturing enterprises, and achieved good application effect.

【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH165

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