基于精益六西格玛建造的项目多目标优化研究

发布时间：2018-01-12 17:14

本文关键词：基于精益六西格玛建造的项目多目标优化研究　出处：《重庆交通大学》2013年硕士论文　论文类型：学位论文

【摘要】：建筑工程项目是一个极其复杂的组合工艺生产流程,具有结构复杂、工期长、质量要求高等特点。大部分建筑工程在建设过程中,没能实现合理安排,导致大量的材料(比如混凝土、钢材、水泥等)、时间和人工都浪费在低效率的施工过程中。此外,项目的工期、质量、成本等目标之间很难达到整体最优,也将导致最终竣工的建筑产品性能达不到客户的需求和期望。针对建筑工程项目中的问题,许多研究者和项目从业人员通过使用混合动力的概念或相关方法提高了项目的施工性能,取得了一定的功效。但是,很少有人将六西格玛方法结合精益生产理念应用在建筑行业中综合提高建筑性能及客户满意度。本文从项目的多目标优化出发,将六西格玛管理理论应用到项目的多目标优化中。首先对精益生产和六西格玛理论分别进行研究,并对两者结合的精益六西格玛理论应用在建筑行业进行论证分析,以此证明该方法在建筑业中同样合适并且可以达到资源配置最优。其次对项目的多目标-成本、质量、工期分别进行分析,并在此基础上构建了工期与成本、工期与质量之间的函数模型关系,结合三者相互关系建立了工期、成本和质量为目标的项目多目标优化模型。对“多目标微粒群”算法的基本原理、算法运算流程及参数的选择等进行讲解,该算法在求解多目标优化问题方面具有高效性和并行性。之后提出基于精益建造和六西格玛管理构建的DMAIC模型,并对该模型的定义、测量、分析、改进和控制各阶段的概念及运用的工具进行介绍。最后,将建立的多目标优化函数模型引入工程案例中,运用MATLAB编程软件,实现微粒群算法构建的项目质量-成本-工期的多目标优化模型的求解。并且通过精益六西格玛建造的DMAIC模型对优化后的结果及需要采取的措施进控制,最大限度及最合理的满足客户要求的同时达到资源配置最优。
[Abstract]:The construction project is an extremely complex combination process production process , which has the characteristics of complex structure , long construction period and high quality requirements . Most of the construction projects are not able to realize reasonable arrangement during the construction process , so that a large amount of material ( such as concrete , steel , cement , etc . ) , time and labor are wasted in the construction process of low efficiency . In view of the problems in the construction project , many researchers and project practitioners have improved the construction performance of the project by using the concept of hybrid power or the related methods . However , the six sigma method is seldom applied in the construction industry to improve the building performance and customer satisfaction . First , the Lean Production and Six Sigma Theory are studied , and the combined Lean Six Sigma theory is applied in the construction industry to demonstrate the method , which proves that the method is equally suitable in the construction industry and can achieve the optimal resource allocation . Secondly , the multi - objective - cost , quality and construction period of the project are analyzed , and the relationship between construction period and cost , construction period and quality is built . Finally , the multi - objective optimization function model is introduced into the engineering case , and MATLAB programming software is used to realize the solution of the multi - objective optimization model of the project quality - cost - construction period constructed by the particle swarm optimization algorithm .

【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU712

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