产品协同设计任务的排序与调度问题研究

发布时间：2018-06-03 21:52

本文选题：协同设计 + 任务规划　；参考：《太原科技大学》2017年硕士论文

【摘要】：网络化产品协同设计是一种在分布式网络环境下多学科、多群组协同的现代产品设计模式,它是指多学科群组人员针对一个复杂产品的设计目标、相互协调、互相协作地完成一个产品设计的过程。协同设计的目的是为了提高产品的设计效率、缩短产品的设计周期、提升产品的市场竞争力。任务排序与任务调度问题是网络化产品协同设计研究的核心问题之一,是产品实现协同设计的首要解决的问题,因此,对协同设计中任务排序与任务调度策略的研究具有十分重要的意义。本文在分析了网络化产品协同设计任务排序与调度国内外研究现状和所使用的关键技术的基础上,针对产品设计任务拆分后子任务之间的复杂关系,本文提出一种基于模糊矩阵方法构建子任务模型的协同任务的调度策略。首先,利用任务间的关联程度建立产品设计的任务集,并引入重要度参数,以重要度为参考对任务集内全部子任务进行排序;其次,分析任务集之间的耦合度和并行度,确定任务执行时间的分配策略,并利用建立好的排序规则和任务状态模型建立动态的调度策略。最后,实验验证了所用算法和策略的可行性和有效性。本文的主要工作如下:(1)协同设计过程的任务分解和排序问题研究。针对任务的耦合度、重要度等多个特征,建立一种协同设计的任务排序方法,以及任务的时间分配策略。(2)协同设计的并行与串行调度问题研究。针对协同设计任务执行的动态不确定性问题,给出了任务集之间的并行调度策略和任务集内部子任务之间的串行调度策略。(3)设计开发了一个网络化协同设计任务排序与调度管理原型系统,验证所提方法的有效性。网络化产品协同设计任务排序与调度问题的研究,为网络化协同创新环境下,产品设计的过程管理提供了一种有效的方法。
[Abstract]:Networked product collaborative design is a kind of modern product design pattern of multi-disciplinary and multi-group collaboration under distributed network environment. It refers to the coordination of multidisciplinary group personnel for a complex product design goal. Work together to complete a product design process. The purpose of collaborative design is to improve the design efficiency, shorten the design cycle and enhance the market competitiveness. Task ranking and task scheduling is one of the core problems in networked product collaborative design and the most important problem to be solved in product collaborative design. It is of great significance to study task scheduling and task scheduling strategy in collaborative design. Based on the analysis of the status quo and the key technologies used in the task scheduling and scheduling of networked product collaborative design, this paper aims at the complex relationship between the sub-tasks after the separation of product design tasks. In this paper, a scheduling strategy for collaborative tasks based on fuzzy matrix method is proposed. Firstly, the task set of product design is established by using the degree of correlation between tasks, and the importance parameter is introduced to sort all the sub-tasks in the task set with the importance degree as the reference. Secondly, the coupling degree and the degree of parallelism among the task sets are analyzed. The assignment strategy of task execution time is determined, and the dynamic scheduling strategy is established by using the established collation rules and the task state model. Finally, the feasibility and effectiveness of the proposed algorithm and strategy are verified by experiments. The main work of this paper is as follows: 1) Task decomposition and scheduling in collaborative design process. According to the characteristics of task coupling and importance, a task scheduling method for collaborative design is proposed, and the parallel and serial scheduling problems of task scheduling are studied. For the dynamic uncertainty of collaborative design task execution, The parallel scheduling strategy between task sets and the serial scheduling strategy between subtasks in task set are given. A prototype system of task scheduling and scheduling management for networked collaborative design is designed and developed to verify the effectiveness of the proposed method. The research on task ordering and scheduling of networked collaborative product design provides an effective method for process management of product design in networked collaborative innovation environment.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB472

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