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MATHEMATICAL PROGRAMMING ANALYSIS OF COMPONENT VENEER CONTRIBUTION TO INCOME IN PLYWOOD PRODUCTION.

机译:胶合板生产对收入的成分单板贡献的数学规划分析。

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摘要

This thesis presents a new approach to solving plywood production planning problems. The traditional approach to the solution of these problems has been based upon a linear programming model in which the aim of the objective is to maximize the "unit plywood" contribution to income on profit, subject to a set of production and market constraints. This kind of analysis ignores the diverse values of the plywood components, such as various grades of veneers.;Two different approaches for the "veneer contribution" to income analysis were studied. The first approach solved the veneer-to-plywood problem. The second solved the log-to-plywood problem. These approaches permit the determination of optimum veneer grades and thicknesses in exact proportion required for the production of desired types of plywood panels. The results of the "veneer contribution" to income analysis identified not only the optimum quantities of veneers for the manufacture of requisite plywood, but because of a more refined solution the results also indicated to which types of panels each grade and thickness of veneer should be allocated to optimize the return from the manufacturing operation.;Two traditional approaches to the solution of veneer-to-plywood and log-to-plywood production planning problems were also solved for the same set of production resources and market constraints.;On the whole, the results of this study indicate that the values of the objective function achieved for the "veneer contribution" to income analysis improved significantly over the "plywood contribution" to income analysis by traditional approaches.;In this study, the proposed approach took the diverse values of plywood components into fundamental consideration. The income contributions by the veneers for all types of projected plywood were determined and used as coefficients in the objective function of the proposed linear programming model, subject to a set of production and market requirement constraints.
机译:本文提出了一种解决胶合板生产计划问题的新方法。解决这些问题的传统方法是基于线性规划模型,该模型的目标是在一定的生产和市场约束下,最大化“单位胶合板”对利润利润的贡献。这种分析忽略了胶合板组件的不同价值,例如各种等级的单板。;研究了两种不同的“单板贡献”对收入分析的方法。第一种方法解决了单板到胶合板的问题。第二个解决了原木到胶合板的问题。这些方法可以按照生产所需类型的胶合板所需的确切比例确定最佳单板等级和厚度。对收入分析的“胶合板贡献”结果不仅确定了用于生产必需胶合板的胶合板的最佳数量,而且由于采用了更为精细的解决方案,结果还表明应对每个等级和厚度的胶合板类型进行选择分配以优化生产运营的收益。;在相同的生产资源和市场约束条件下,还解决了两种传统的解决单板到胶合板和原木到胶合板生产计划问题的方法。 ,这项研究的结果表明,与传统方法对收入分析的“胶合板贡献”相比,对收入“分析”的目标函数实现的目标函数值有了显着提高。胶合板组件的价值成为基本考虑因素。确定了胶合板对所有类型的预计胶合板的收入贡献,并将其用作拟议线性规划模型目标函数中的系数,但要受一组生产和市场需求约束的约束。

著录项

  • 作者

    CHU, AH CHUN.;

  • 作者单位

    State University of New York College of Environmental Science and Forestry.;

  • 授予单位 State University of New York College of Environmental Science and Forestry.;
  • 学科 Operations Research.
  • 学位 Ph.D.
  • 年度 1979
  • 页码 212 p.
  • 总页数 212
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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