面向大规模定制生产的产品族模型研究

在大规模定制生产环境下,传统的物料管理方法已经不能适应大规模定制生产的要求,所以基于通用产品平台的产品族设计是一种有效的产品管理方法。文章针对大规模定制生产的特点,提出了一种基于类物料清单的产品族结构模型,并详细分析了该模型的结构和配置管理方法。最后,给出了该模型和配置生成机制用于电话机产品族的结构和配置管理的实例。     

基于大规模定制的产品族设计研究

产品族设计是大规模定制设计的关键和核心,文章界定了产品族及产品族设计的概念,并从产品族设计的平台战略及客户参与的产品族设计方案两个角度出发,分析了国内外的研究现状,指出了现有产品族设计方法无法实现客户满意度和产品成本一致的问题。面向MC的产品族设计方法要以实现产品成本与客户满意度的最优组合为目的,在保证定制的前提下实现大规模的生产。     

基于模块化产品族的配置设计研究

面向大规模定制的生产方式是一种新型的生产方式,它必将取代20世纪大批量生产,成为21世纪工业的主流生产方式.如何高效便捷的配制出符合客户需求的产品是大规模生产方式成败的关键.基于模块化产品族的产品配置设计方法是解决这一问题的有效手段.文章阐述了粗纱机产品族的规划、模块的划分、基于模块化的变量配置设计、并结合粗纱机进行了实例配置.     

基于GBOM和CSP的车型配置管理模型的研究

为解决车企在客户化定制的生产模式下面临车型配置与BOM管理的难题,提出基于GBOM(Generic Bill of Materials,类物料清单)和CSP(Constraints Satisfaction Problem,约束满足问题)的车型配置管理模型。构建基于GBOM的产品族模型及相关配置约束规则,结合客户的个性化需求,将产品族模型映射为约束满足问题,并使用回溯算法进行求解,最终得到车型实例及BOM数据。最后,给出了基于文中研究成果开发的车型配置管理系统在企业实施运用的具体实例。应用实例表明,基于GBOM和CSP的车型配置管理模型能够有效实现车型配置,生成准确的BOM数据,快速满足客户的需求。     

基于产品族的产品设计方法研究

为达到快速响应市场需求和客户的特殊要求，实现产品快速设计，提出了在广义产品族基础上的产品设计方法：利用典型产品模板作为平台，组建企业产品族，并利用零件族实现产品配置形成新的产品；开发在线定制平台和智能浏览器，使客户浏览到产品、说明书，对产品图样进行简单更改和意图说明，实现客户化定制。利用这些技术，使企业实现设计知识重用，达到快速产品开发的目的，并以最快、最好的服务满足客户需求。     

基于Pro/E & CAD的BOM映射及应用的研究

在产品生命周期中,BOM作为描述产品结构与配置关系的表单,以多视图形式描述了产品形态的变化过程.文章详细分析制造企业中针对不同部门BOM之间映射逻辑、对象信息模型信息,把BOM中的物料项、物料关系项及对应的功能模块按照面向对象的思想研究;并基于Pro/E&CAD获取BOM信息,建立基于单一数据源的信息模型;文章还结合BOM之间的映射逻辑关系,动态配置EBOM及PBOM,实现把BOM之间抽象的逻辑信息转换为具体的对象信息,并进行了详细介绍.EBOM生成及在此基础上PBOM的生成作了详细介绍.     

基于Pro/E ＆ CAD的BOM映射及应用的研究

在产品生命周期中,BOM作为描述产品结构与配置关系的表单,以多视图形式描述了产品形态的变化过程.文章详细分析制造企业中针对不同部门BOM之间映射逻辑、对象信息模型信息,把BOM中的物料项、物料关系项及对应的功能模块按照面向对象的思想研究;并基于Pro/E＆CAD获取BOM信息,建立基于单一数据源的信息模型;文章还结合BOM之间的映射逻辑关系,动态配置EBOM及PBOM,实现把BOM之间抽象的逻辑信息转换为具体的对象信息,并进行了详细介绍.EBOM生成及在此基础上PBOM的生成作了详细介绍.     

压力机PBOM的生成及其管理技术

物料生产清单(BOM)也叫产品结构或配方,是MRP系统中最重要的概念之一。物料(通常是完成品或半成品、部品)的组成:由哪些下级物料组成,每一下级物料的用量是多少,包括其对应的属性等。工艺物料清单(PBOM)在工艺设计和生产制造中具有承上启下的重要作用。文章结合压力机制造业的特点,分析了物料编码的基本原则、物料编码方法、压力机PBOM的生成、PBOM的多级展开、PBOM的多级反查、PBOM的更改管理和有效控制。     

面向大规模定制生产模式的产品快速开发支持系统研究与应用

针对传统生产模式下的制造企业在客户化定制设计和制造中面临的问题，提出了一种面向大规模定制生产模式的产品快速开发支持系统体系结构，构建了企业标准产品的结构模型，给出了基于该结构模型的工程项目快速配置方法。最后将该系统应用到某成套电器企业。     

可定制柔性编码系统模型的研究与实现

为满足企业对事物编码的多样化需求,在研究编码系统功能和编码基本原则的基础上,分析编码系统组成要素在可定制柔性方面的相关需求,阐述了可定制柔性编码系统的结构模型和功能模型,设计了系统数据信息存储的具体结构,并就有关编码复制、编码解析和识别码生成等关键技术给出了具体的实现步骤.最后介绍了编码系统模型在产品数据管理系统中的应用.     

Design Reuse Methodology for Product Family Design

This paper presents a design reuse methodology to facilitate product family design. Three major processes are defined, namely, information modelling, information processing, and solution synthesis and evaluation. The information content assessment (ICA) method is proposed for solution evaluation. This method defines logical steps to compute the information content that is used as a uniform, dimensionless metric of product performances. In a case study, product families of the cellular phone were developed using the design reuse methodology. It is demonstrated that the design reuse method proposed in this paper can effectively manage the product family design processes, and the ICA method provides a useful way for performance evaluation.     

Co-Evolution of Product Families and Assembly Systems

To cope with the intense global competition that is characterized by high product variety and short life cycles, manufacturers need to share manufacturing systems across products and product generations. Co-evolution of product families and assembly systems is proposed as a novel methodology for the joint design and reconfiguration of product families and assembly systems over several product generations. The co-evolution methodology capitalizes on the opportunities for design and assembly system reuse that are offered by modular product architectures and reconfigurable assembly systems. As a result, co-evolution can lead to reduced product development costs and increased responsiveness to market changes.     

Designing Product Reliability based on Total Product Lifecycle Modelling

Due to the rapid progress of technology and severe competition in market, recent industrial products are required to exhibit high quality and functionality. At the same time products are required to be environmentally conscious. Therefore it is important to achieve appropriate product reliability with minimum resource consumption. In the total product lifecycle there exist various kinds of disturbances which may deteriorate product quality and functionality. A reliability design method is proposed based on prediction of product behaviour deterioration and its influence on product functional failure. Effectiveness of the proposed method is evaluated by mechatronics product design.     

Modular design for increasing assembly automation

Modular design can address the need for a high number of product variants and further allow a higher degree of automation in the assembly line. A framework is developed for the simultaneous modular product design and the design of automated manufacturing system. Product designs are optimized for automation using Design Structure Matrix and Modular Function Deployment. Alternative production systems are designed and accessed based on the analysis of assembly steps hierarchically. The implementation of the framework on the design of a production system for furniture assembly, able to handle multiple variants with a large number of components, is demonstrated.     

支持工艺变型设计的零件族建模方法研究

工艺的变型设计是实现产品快速变型设计的重要手段,而工艺变型设计的实施必须建立合适的产品模型.本文提出了支持工艺变型设计的零件族建模方法;建立了工艺变型设计系统的总体框架;对支持工艺变型设计的零件族建模过程进行了详细研究,并论述了建模过程中采用的关键技术.     

Adaptable Design

Increasing competition for better product functionality, quality, features, customization, environmental friendliness, lower cost and shorter delivery time presents unprecedented challenges for product manufacturing enterprises. These challenges cannot be completely addressed by advanced manufacturing technologies alone as some of which are originated from product design. Advanced design technologies and tools for early product design processes are critically needed where most important decisions are made with respect to the product functionality, quality, manufacturability, cost and environmental performance. This paper discusses adaptable design (AD) as a design paradigm for both business success and environmental protection. Adaptable design aims at developing products that are adaptable in their design and/or their production. Adaptability is defined as the extension of the utility (service) of products. Two types of adaptabilities are proposed as product adaptability and design adaptability. Two types of design adaptations are also identified, which include foreseeable specific adaptations and unforeseeable general adaptations. The former can be described by specific adaptability and the latter by general adaptability. Three key elements of AD are presented including functions independence, a measure of adaptability and a function based design process model of the AD. Based on these concepts and design objectives, adaptable design methods and general design guidelines are proposed. Examples are included to illustrate the concepts, design methods and guidelines.     

产品开发中人机工程设计方法的研究

从产品生命周期的角度,研究了产品开发中的人机设计活动,提出了将人机工程设计与产品开发各阶段相结合的研究方法,这种方法将人机工程学观点系统地根植于产品生命周期中,从而能使产品及其用户界面得到成功的优化。最后对主要人机设计和评价工作的解决方案举例说明。     

A New Approach for Robust Design of Mechanical Systems

Robust product design aims to develop a product that satisfies design requirements while ensuring minimal effects of environmental variability on product performance. Environmental variations may come from raw materials, manufacturing processes, and/or operational environments, which can cause deviations of product functions. This research can verify that the independence axiom can lead to a robust design, while robust designs do not necessarily require functional independence. Thus, designs can be divided into three categories - feasible designs, robust designs and ideal designs. In the first level of the design process, the designers should generate a feasible design, then seek to acquire robustness, and finally determine the possibility of independence. Axiomatic design aims to achieve the independent design; the traditional robust design is an experimental method that may not reach design independence. The proposed approach introduces the integration of the independent analysis that is based on axiomatic design, with the robust analysis that is based on the traditional robust technique. It can help the designer to seek an ideal design or a robust design in respect to the specific design conditions.     

基于双向驱动机制的产品变型设计研究及实现

在分析当前的三维参数化技术的基础上，结合产品的基于事物特性表的建模方法，利用粗集理论对零部件模块进行合理化和系列化。把产品变型设计过程看作是对产品模型的约束组的求解和尺寸驱动，提出了可双向驱动的变型设计方法，方便地实现了产品模型的自顶向下和自底向上相结合的产品快速设计。利用Pro／TOOLKIT工具包与VC．NET语言开发了复杂产品的变型设计模块原型。本文所提出的方法在汽车零配件的产品设计中得到了成功验证。