虚拟绿色制造系统体系结构的研究

探讨虚拟制造技术在绿色制造中的应用,在虚拟制造中实施绿色制造,提出虚拟绿色制造系统体系结构．分析虚拟绿色制造的目标、绿色设计、虚拟制造、绿色产品评估系统、基于产品全生命周期的管理信息系统等相关技术。     

分度凸轮机构装置的虚拟制造技术研究与开发

针对分度凸轮机构的设计与制造问题 ,引入以计算机技术为核心的虚拟制造理论与实施技术 ,对分度凸轮装置的 VMT体系结构、虚拟产品建模、设计与制造等系统的各个阶段关键技术进行了分析 ,提出了进行此类产品虚拟制造的基本技术框架及方法。该项研究工作的进行和相关技术系统的开发 ,有助于丰富典型机器零部件的虚拟制造理论体系及扩大其应用领域 ,提高制造业产品的竞争力     

敏捷制造环境下虚拟产品的协同设计模式

研究敏捷制造环境下产品的设计模式。阐述基于客户需求的产品虚拟设计的体系结构,分析网络化协同设计的体系结构和协同模式;在此基础上,提出敏捷制造环境下虚拟产品的协同设计模式。     

敏捷制造环境下虚拟产品的协同设计模式

对敏捷制造环境下产品的设计模式进行了研究。阐述了基于客户需求的产品虚拟设计的体系结构。分析了网络化协同设计的体系结构和协同模式；在此基础上，提出了敏捷制造环境下虚拟产品的协同设计模式。     

基于虚拟样机的系统仿真技术

基于虚拟样机的系统仿真是实现虚拟制造、并行工程和敏捷制造的关键技术之一,是完成设计分析、产品数据交换、工作信息交流等任务的基础和依据。利用虚拟样机,在产品实际加工之前对产品的性能、产品的可制造性进行评价,同时对产品的制造全过程进行仿真,将制造过程可能...     

基于Internet的虚拟制造技术研究

解释了基于Internet的虚拟制造（IVM）的概念,分析了IVM的特点,对IVM的体系结构、虚拟产品建模和分布式协同设计等关键技术进行了研究。提出了基于Internet的虚拟制造系统的6层体系结构,建立了基于框架的松散耦合产品模型,并初步构造了分布式协同设计实验环境。     

某型航空发动机装配过程虚拟仿真应用

在复杂工业产品制造的工艺准备阶段,借助于数字化三维虚拟仿真技术进行工艺设计和优化是十分必要的.针对中国首次研发的某商用航空发动机,基于中国自主开发的VR-Layout虚拟工厂建模与仿真平台,开展发动机本体装配、转子平衡和外部装配3个工艺过程的三维虚拟仿真建模和分析评估工作,实现了工艺文件的可视化展示和验证、工装干涉检查、工位器具的补充设计.该项工作不仅为后期工艺文件的持续优化初步建立了软件平台,也为其他制造产品的三维虚拟仿真设计提供了技术参考和流程经验.     

虚拟制造中的产品建模技术研究——基于产品定义单元和元建模的产品模型

虚拟制造要求产品模型在多学科无缝集成仿真中能够保持信息的一致性和可重用性 ,传统的产品模型难于满足这一需求。基于虚拟制造对产品建模的要求 ,本文采用特征、零件和装配三个层次的产品定义单元 (PDU)构造产品设计模型 ,基于SUMM元建模技术实现模型间的互操作。虚拟制造各种应用模型可以由此设计模型衍生而来 ,较好地解决了现有产品模型语义信息缺乏的问题 ,并具有良好的一致性、可扩充性、可重用性。     

基于知识的虚拟设计研究

研究了虚拟制造的体系结构和虚拟设计的模型问题，提出了层次化建模思想及元模型、机构模型、产品模型的概念，将整个虚拟设计模型分为元模型、机构模型和产品模型，建立了三个模型的结构，并给出基于知识的虚拟设计的建模方法和装配模型。     

虚拟制造设计技术在产品设计及性能分析中的应用

通过对产品性能分析模型构建的形成,探索如何应用虚拟制造技术进行产品的虚拟设计、评价。揭示了虚拟制造在产品虚拟设计及性能分析中独特优势,分析了虚拟制造技术对产品设计、开发的重要意义。     

虚拟产品开发的电子商务模式

提出了将虚拟产品设计与电子商务进行结合，以达到实时设计和快速反应市场，使新产品适应用户要求，较快产生经济效益的目的，并给出了按这种思想创建的虚拟零件库的应用实例。     

Development of a prototype customer-oriented virtual factory system

Current Computer integrated manufacturing/Enterprise Resource Planning (CIM/ERP) systems require harmony and communication between humans and facilities. A user’s preferences should also be considered in CIM/ERP systems. Virtual factory (VF), also known as virtual manufacturing (VM), systems can fulfill the requirements of current CIM/ERP systems. A VF system simulates virtual production in a virtual factory environment on the computer system which allows optimization prior to going into production. In this paper, we defined a VF system as a pre-analyzing system for designing, engineering and manufacturing a product in the enterprise system of the real world. The objective of this paper is to design a VF system and to develop a prototype system that the customer can participate in and be satisfied with. We selected a telephone as a sample product for the VF system. The VF system consists of four subsystems: virtual product ordering, design, manufacturing, and CIM/ERP interface. The prototype system aims to develop a virtual product ordering and design system.     

Development of a prototype customer-oriented virtual factory system

Current Computer integrated manufacturing/Enterprise Resource Planning (CIM/ERP) systems require harmony and communication between humans and facilities. A user’s preferences should also be considered in CIM/ERP systems. Virtual factory (VF), also known as virtual manufacturing (VM), systems can fulfill the requirements of current CIM/ERP systems. A VF system simulates virtual production in a virtual factory environment on the computer system which allows optimization prior to going into production. In this paper, we defined a VF system as a pre-analyzing system for designing, engineering and manufacturing a product in the enterprise system of the real world. The objective of this paper is to design a VF system and to develop a prototype system that the customer can participate in and be satisfied with. We selected a telephone as a sample product for the VF system. The VF system consists of four subsystems: virtual product ordering, design, manufacturing, and CIM/ERP interface. The prototype system aims to develop a virtual product ordering and design system.     

基于Web的三维虚拟产品模型的交互操作和同步浏览的实现

为满足基于W eb面向用户的协同交流的需要,在客户和企业设计者之间搭建了一个实时交流的平台。提出了一种对VRML模型进行交互操作和同步浏览的方法,解决了对VRML产品模型进行预处理以及实现同步浏览的关键技术,并以Cortona浏览器为显示工具,使虚拟模型的交互操作和同步浏览得以实现。     

客户驱动的广义产品配置模型研究

针对具有模块化特性的大批量定制生产的产品配置问题,提出了一种以客户驱动为基础的扩展虚拟模块的广义产品配置模型。建立了与知识库绑定而与实例分离的多级分层的产品结构模型,通过客户需求分析建立驱动参数映射模型,结合虚拟模块特性建立广义的客户驱动参数描述格式和模块特性参数开放式柔性编码规则,建立定量数学描述且适于计算机实施的配置模型,从而把产品配置问题转变为模块的定量组合优化问题。此模型已在汽车产品的客户定制系统中试运行。     

客户需求驱动的产品协同定制系统

客户需求作为产品设计的输入,也是进行产品设计的最终目的.大批量定制更是以客户需求为中心,准确、快速地获取客户需求是大批量定制的关键.通过分析客户需求特点和提高客户满意度的途径,建立客户需求驱动的协同定制系统,实现了客户、企业和供应商之间的集成和协同.以需求模板为基础,建立客户需求参数、产品功能参数到产品结构参数的映射关系.在准确获取客户需求的同时,使客户参与到产品的设计、生产过程之中,从而获得客户高满意度的产品.     

Configurable product design considering the transition of multi-hierarchical models

The current research of configurable product design mainly focuses on how to convert a predefined set of components into a valid set of product structures. With the scale and complexity of configurable products increasing, the interdependencies between customer demands and product structures grow up as well. The result is that existing product structures fails to satisfy the individual customer requirements and hence product variants are needed. This paper is aimed to build a bridge between customer demands and product structures in order to make demand-driven fast response design feasible. First of all, multi-hierarchical models of configurable product design are established with customer demand model, technical requirement model and product structure model. Then, the transition of multi-hierarchical models among customer demand model, technical requirement model and product structure model is solved with fuzzy analytic hierarchy process (FAHP) and the algorithm of multi-level matching. Finally, optimal structure according to the customer demands is obtained with the calculation of Euclidean distance and similarity of some cases. In practice, the configuration design of a clamping unit of injection molding machine successfully performs an optimal search strategy for the product variants with reasonable satisfaction to individual customer demands. The proposed method can automatically generate a configuration design with better alternatives for each product structures, and shorten the time of finding the configuration of a product.     

DESIGN ATTRIBUTES OPTIMIZATIONMODEL FOR CUSTOMIZED PRODUCT AND ITS APPLICATION

By formulating the design of customized product as a multi-objective optimization problem, a method for designing customized product according to the relative importance of customer needs is proposed. This method searches for the optimal design that maximizes customer satisfaction by establishing mapping from design attributes to the degree of customer satisfaction on each customer need. A window product is taken as an example for case study. The result indicates that this method is feasible.     

面向创新设计的机电产品满意度体系与测量方法研究

将满意度引入到产品创新设计中，建立了产品满意度的基本概念、测量方法、度量方法以及满意度、满意度指数的统计计算方法。认为组成产品满意度的各要素分为当然、规范和兴趣3个层次，当外部环境发生变化时它们相互转换、动态发展；提出了最小满意度法、层次法、满意度比较法和产品创新点挖掘程序，在用户期望与产品创新之间建立了有效联系；给出了案例分析。