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1.
产品绿色设计与制造关键技术及发展趋势   总被引:7,自引:0,他引:7  
在总结国内外研究现状的基础上,提出了产品绿色设计与制造的关键技术,然后从绿色设计的评价方法、回收规范、设计准则、全生命周期设计以及绿色制造的全球化、社会化、集成化、并行化、智能化、产业化等方面论述了绿色设计与制造研究的发展趋势。  相似文献   

2.
快速原型技术带来产品创新设计开发的革命   总被引:9,自引:0,他引:9  
在指出传统成型技术和设计技术的致命缺陷基础上,简单介绍了快速原型技术的原理,着重讨论了用现代的高科技手段和技术来改造产品设计开发方法,应用快速原型技术能够促进设计创新(虚拟设计)、产品创新(全新产品)、工艺创新(并行模式)和管理创新(分散网络化制造),从而形成数字化、并行化、智能化与集成化,带来了产品创新设计开发的革命。  相似文献   

3.
软件开发过程的分布并行化是缩短软件开发周期和降低开发成本的有效途径。本文将进化式原型方法引入到软件的并行开发过程中,提出了并行进化式软件开发模型CESD及相应的管理与控制机制,并将并行成分及并行控制成分统一到面向对象的机制下,提出了并行环境下面向对象的原型进化过程。  相似文献   

4.
数字图书馆中文本信息检索技术的研究与实现   总被引:3,自引:0,他引:3  
介绍了一个并行数字图书馆原型系统PDL,和用于该系统的针对文本信息检索的一些数据结构,包括倒排索引,结构索引,RANK索引和词典等,并在此结构的基础上设计实现了基于内容和结构的查询算法。这些算法以计算机机群并行环境为基础.实验表明并行数据查询具有良好的性能。  相似文献   

5.
面向制造设计环境下的并行工艺设计技术研究   总被引:4,自引:0,他引:4  
为适应面向制造的设计(DFM)对工艺设计提出的新要求,在传统的工艺设计方法中引入并行工程的理念,提出了一种新的工艺设计模式-并行工艺设计模式(CEPP)。它包含宏并行设计与微并行设计两个方面,在宏并行设计方面,强调CAD与工艺设计的同步进行,交互往复;在微并行设计方面,强调工艺设计内部的分布式并行工艺问题求解技术。论文应用特征造型理论和合弄制造系统理论分别对宏并行设计和微并行设计中的关键技术-零件建模和合弄工艺设计进行了详尽的研究讨论。  相似文献   

6.
针对物联制造系统可移植性和复用性差的问题,进行物联制造技术框架研究。提出由感知识别、网络传输、管理服务、综合应用等四大模块构成的物联制造技术框架,给出了可复用、易移植、易扩展的原型系统。该框架结合了物联网体系层次化和嵌入式系统软硬件构件化的设计思想及抽象系统共性元素,融合了微控制器编程、Web应用程序开发等技术,缩短了开发周期,开发效率大幅提升。  相似文献   

7.
根据供应链管理的原理和方法,以某离散型制造企业的物流系统为对象,构建了供应链结构。在此基础上,分析了物流管理流程,对原型系统进行了建模,采C/S与B/S的混合结构方式,设计了物理管理原型系统的体系结构。用VB开发工具对工装管理予系统进行了设计和开发,开发的软件已在原型工厂的实际管理中使用。  相似文献   

8.
介绍了原型化方法的基本理论,并结合施工进度管理系统设计开发的实践经验,分析了原型化方法和用例技术在实际软件系统开发中的设计策略和应用步骤,改进了进度控制系统的需求分析手段,提高了系统质量。  相似文献   

9.
在简要分析绿色设计技术研究现状的基础上,提出了一种基于网络的绿色设计系统(NGDS)的功能需求、程序设计与开发方法及其原型系统的功能模型,阐述了该系统所涉及的面向对象的信息建模技术及其实际应用。  相似文献   

10.
内燃机数字原型系统的研究与应用   总被引:1,自引:1,他引:1  
阐述了数字原型系统在内燃机零部件设计中的实施步骤,根据自顶向下设计的思路确定内燃机产品结构定义和零部件间的参数传递及控制过程,采用基于特征的参数化技术研究内燃机零部件模型的参数化生成和控制方法.通过内燃机零部件设计实例,说明如何利用数字原型系统实现内燃机零部件的快速设计.该系统可以大大缩短内燃机及其零部件设计开发周期,提高企业的产品应变能力和新产品开发能力.  相似文献   

11.
基于特征和知识库的CAM系统设计   总被引:8,自引:0,他引:8  
智能化是CAD/CAM系统的一个重要发展方向。本文以特征设计和制造为基础,把专家系统的有关知识合理地运用到计算机辅助制造中。提出了基于制造特征和制造技术知识库的CAM系统框架,主要研究了制造特征的定义和分类,制造技术和知识库的设计和知识表达,并在已有的CAD/CAM系统中实现和应用,极大地提高了数控代码的生成效率和质量。  相似文献   

12.
先进制造技术是一个多学科体系,随着全球经济一体化和市场需求多元化的牵引以及信息技术和人工智能技术的推动,目前的生产模式已发生了重大改变.在阐述了先进机械制造技术的起源、内涵和特征后,又探讨了先进机械制造技术的几种典型模式,包括并行工程模式、精益生产模式、虚拟制造模式、敏捷制造模式和绿色制造模式.在此基础上.进一步展望了先进机械制造技术模式的发展前景.提出了以精密工程技术、微型系统制造技术和可持续发展制造技术为各自核心的3个发展方向.  相似文献   

13.
运用尺寸链计算出零件在公差及其他变形影响下的最终作用尺寸,利用Solidworks中特征建模方法建立起装配体的三维模型,并根据该软件的参数化设计功能,利用VB对其进行二次开发实现了对装配后的机械性能的模拟;尝试了变参数设计系统在机械设计方面的应用,找到了一种模拟设计结果的方法。  相似文献   

14.
A machining system is a typical manufacturing system. A green manufacturing function framework of machining systems is structured to describe the traits of input, output and control elements in the system. Based on the function framework, the green manufacturing problem framework of machining systems is presented. The green manufacturing problems in machining systems are classified into three classes and related series of subclass problems. The three classes of problems in the green manufacturing problem framework are the problems of the minimization of resource consumption, the minimization of environmental discharge, and the synthesized minimization of both of them. A series of investigations and practices on green manufacturing in machining system, performed by the authors for quite a long period, are introduced in brief, such as the optimizing system for raw material cutting,the matching system for energy-saving in machining, the design of highly efficient dry hobbing machine tools, the multi-objective decision-making model for green manufacturing in machining systems, and the decision-making supporting system for green manufacturing in machining processes.  相似文献   

15.
Nowadays, issues on population, environment and resource have become the world's attentive focus. Sustainable development has been widely accepted around the world. As one of the biggest waste generator and resources consumer, manufacturing industry is facing more challenges as well as opportunities. In order to reduce both resource consuming and waste discharging effectively, traditionally manufacturing mode should be improved. Newly emerged creative technologies and strategies, including green design, green manufacturing and cleaner production,are regarded as the radical resolvent for current environment and resource issues and they will be the only way in the future that manufacturing will evolve. In this paper, a serial of research on green design/manufacturing and cleaner product theoretically and practically was presented. These creative technology and strategy will give strong support to‘green’the whole electromechanical designing and manufacturing processes.  相似文献   

16.
FPSO与常规油船设计建造的比较分析   总被引:1,自引:0,他引:1  
为更好地理解海洋工程产品的设计建造方法,以一艘20×10t级浮式生产储油船(FPSO)为例,分析了FPSO的特点,并结合实际生产情况,重点研究了设计建造FPSO时,在船型与结构设计、材料选择、设备与管系选型、电气没计、涂装设计、规范和标准应用以及设计建造管理等方面需注意的主要问题.同时,通过与传统油船的设计建造方法相比较,分析了海洋工程产品与传统船舶在设计方法、管理程序、建造要求、风险利润等方面的异同,为船厂承接海洋工程订单提供参考.  相似文献   

17.
Investigations and practices on green manufacturing in machining systems   总被引:1,自引:0,他引:1  
A machining system is a typical manufacturing system. A green manufacturing function framework of machining systems is structured to describe the traits of input, output and control elements in the system. Based on the function framework, the green manufacturing problem framework of machining systems is presented. The green manufacturing problems in machining systems are classified into three classes and related series of subclass problems. The three classes of problems in the green manufacturing problem framework are the problems of the minimization of resource consumption, the minimization of environmental discharge, and the synthesized minimization of both of them. A series of investigations and practices on green manufacturing in machining system, performed by the authors for quite a long period, are introduced in brief, such as the optimizing system for raw material cutting, the matching system for energy-saving in machining, the design of highly efficient dry hobbing machine tools, the multi-objective decision-making model for green manufacturing in machining systems, and the decision-making supporting system for green manufacturing in machining processes. Foundation item: Project (50475062) supported by the National Natural Science Foundation of China; project (47-19) supported by the Natural Science Foundation of Chongqing, China  相似文献   

18.
Nowadays, issues on population, environment and resource have become the world’s attentive focus. Sustainable development has been widely accepted around the world. As one of the biggest waste generator and resources consumer, manufacturing industry is facing more challenges as well as opportunities. In order to reduce both resource consuming and waste discharging effectively, traditionally manufacturing mode should be improved. Newly emerged creative technologies and strategies, including green design, green manufacturing and cleaner production, are regarded as the radical resolvent for current environment and resource issues and they will be the only way in the future that manufacturing will evolve. In this paper, a serial of research on green design/manufacturing and cleaner product theoretically and practically was presented. These creative technology and strategy will give strong support to ‘green’ the whole electromechanical designing and manufacturing processes. Foundation item: Project (2002AA421240, 2004AA420120) supported by the National High Technology Research and Development Program of China; project (50445003) the supported by National Natural Science Foundation of China  相似文献   

19.
In this paper,the Web-based integration methodology and framework have been developed to facilitate collabora- tive and concurrent engineering design in distributed manufacturing environments.The distributed concurrent engineering and co- design are discussed as key components in the mechanism.The related integration system is presented,which includes four function- al modules:co-design,Web-based visualization,manufacturing analysis and look-up service.It can be used for a design team geo- graphically distributed to organize a collaborative and concurrent engineering design effectively.In particular,the collaborative mechanism incorporated with Java-based and Internet-enabled technologies can generate extended strategies for design and planning. Thus,the proposed integration architecture enables the system to be generic,open and scalable.Finally,for the trend of global manufacturing,a case study of Internet-enabled collaborative optimization is introduced and a discussion on teamwork capability is made.  相似文献   

20.
近年来随着实时嵌入式系统自动化程度的不断提升,其设计复杂度不断加大,在设计中大量的使用了并发程序设计方法。但目前在基于实时嵌入式系统应用程序开发以及测试的过程中,由于中断和线程的相互交叠,始终缺乏有效的针对实时嵌入式系统的并发程序测试方法。本文设计了面向实时嵌入式系统并发程序动态测试的算法,提出以标记迁移系统作为并发程序的系统模型,对常见的并发错误给出了形式化定义,使用偏序化简算法缩减程序的状态空间,实现了对多线程、多重中断的并发程序错误检测。  相似文献   

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