云制造环境下的产品协同设计过程建模与控制研究

【作者】 张超；

【导师】 郭亮；

【作者基本信息】 西南石油大学 ， 工程硕士（专业学位）， 2019， 硕士

【摘要】 云制造是一种基于互联网的并且面向服务的智能制造新模式。该模式融合发展了现有的信息技术,是制造即服务理念的体现。云制造环境下的设计模式以设计即服务(Design as service,DaS)为理念,将各类设计资源抽象为设计服务,为用户提供按需设计服务。这种设计模式主要以分布、并行、协同的形式开展设计工作,将极大的提高设计效率,缩短设计周期。然而,随着产品功能需求的迅速变化,新产品设计复杂度的增加,云制造环境下的设计过程也需要动态变化,设计数据以及复杂的设计流程增加了云环境下的产品设计过程管控难度。为了解决该模式下动态变化的设计过程高效管控机制,本论文提出了一种面向云制造环境的新型协同设计服务模式,并开展了云制造环境下设计过程控制模型及控制方法研究,具体如下:(1)通过对比分析现有的产品串行和并行研发模式,结合云制造技术的特点,研究了云制造环境下的设计模式,提出了云制造环境下的协同设计模式;(2)针对云制造环境下的产品设计业务流程进行分析,通过霍尔三维结构建立了产品设计业务流程边界,提出了基于霍尔三维结构的产品成熟度等级,并建立了通用的产品成熟度模型,形成设计过程模型;(3)基于产品成熟度模型,构建了云制造环境下的协同设计四维结构。分析了云制造环境下设计阶段之间的关系。基于协同设计四维结构利用对象Petri网对产品协同设计过程进行了建模,用对象Petri网描述了各个设计阶段以及它们之间的关系。研究了两种典型的耦合设计过程并对其进行建模和分析;(4)针对云制造环境下不同设计阶段之间的复杂关系,通过量化设计阶段的工作进度来建立它们之间的关系,并提出了设计阶段协同控制方法。依据不同专业的协作特点和元模型提出了基于工厂模式的设计专业协同方法,保证每个设计阶段的设计任设计专业能高效的开展设计任务。根据设计专业的协同情况,提出了基于少量目标统计分析和基于模糊理论的两种设计专业协同控制方法;(5)基于上述理论研究,结合实际设计过程,分析设计过程中的主要元素及功能需求,通过MVC基本结构,开发了一个B/S模式的协同设计云平台,为实现产品的快速研发提供了一种解决方案。更多还原

【Abstract】 Cloud Manufacturing is a new Internet-based and Service-Oriented intelligent manufacturing pattern.This pattern integrates and develops the existing information manufacturing technology,which embodies the concept of manufacturing as a service.The design pattern in the cloud manufacturing environment is based on design as a service(DaaS),ing various design resources into design services and providing users with on-demand design services.This design pattern mainly works in the form of distributed,concurrent and collaborative,which greatly reduces the cost and shortens the design cycle.However,with the rapid change of product functional requirements and the gradual increase of product design complexity,the design process in cloud manufacturing environment also needs dynamic changes.At the same time,the more and more data information and complex design process make product design process difficult to control.In order to adapt to the dynamic change of the design process under this mode and to control efficiently,the main research contents include:(1)By comparing and analyzing the existing product serial and parallel design modes,considering the characteristics of cloud manufacturing environment,the collaborative design mode in cloud manufacturing environment is proposed.(2)Based on the analysis of product design business process in cloud manufacturing environment,the boundary of product design business process is established through Hall three-dimensional structure.The product maturity level based on Hall three-dimensional structure is proposed,and a general product maturity model is established to form the design process model.(3)Based on product maturity model,a four-dimensional structure of collaborative design in cloud manufacturing environment is constructed.The relationship between design stages in cloud manufacturing environment is analyzed.Based on four-dimensional structure of collaborative design,the collaborative product design process is modeled by using object Petri nets.The object Petri nets are used to describe the design stages and their relationships.Two typical coupled design processes are modeled and analyzed.(4)In view of the complex relationship between different design stages in cloud manufacturing environment,the relationship between them is established by quantifying the work schedule of the design stage,and the collaborative control between the design stages is proposed.According to the collaboration characteristics of different specialties and meta-model,a collaboration method of design specialty based on factory mode is proposed to ensure that design specialty in each design stage can carry out design tasks efficiently.Based on the collaborative situation of design specialty,two collaborative control methods of design specialty based on small amount of objective statistical analysis and fuzzy theory are proposed.(5)Based on the above theoretical research,combined with the actual design process,the main elements and functional requirements in the design process are analyzed.Through the basic structure of MVC,a collaborative design cloud platform in B/S mode is developed,which provides a solution for the rapid development of products.更多还原