缓冲包装智能CAD系统的设计与研发

介绍了缓冲包装智能CAD软件系统的设计与实现.着重介绍了利用缓冲包装信息数据库,基于UG的二次开发技术建立的缓冲包装图形处理模块及智能化的缓冲包装设计模块,开发能够集成产品信息数据处理,衬垫纸箱的设计校核计算,包装件的结构优化设计及有限元仿真分析等,功能一体化的缓冲包装CAD软件系统的功能模块与应用特点.     

缓冲包装CAD系统

目的主要介绍缓冲包装CAD系统及其运行流程。方法系统以Visual Basic为编程语言,实现了缓冲衬垫计算与校核、瓦楞纸箱计算与校核、数据处理、图片显示等功能。系统完善了缓冲衬垫和瓦楞纸箱数据库,以方便对规则产品的运输包装设计。结果该系统的设计结果既满足了产品运输中对防护的要求,又避免了人为误差,减少了破坏性试验,缩短了产品研发周期。结论系统将计算机与包装技术有效结合,在理论和实践上发展了运输包装的设计技术,使复杂的设计过程变得简单快捷。     

缓冲衬垫CAD系统的研究

传统的缓冲包装设计，考虑流通环境，根据实验或经验得出的产品脆值，确定缓冲衬垫的种类及结构尺寸，然后进行校核。通常要反复实验与比较，才能筛选出合理的设计结果。其设计在很大程度上依赖于设计人员的自身经验、破坏性试验所得的数据，这就造成产品和缓冲材料的浪费，并且设计过程需时较长，在一定程度上制约了缓冲包装设计的发展。利用基于VC平台开发的缓冲衬垫CAD系统进行缓冲包装设计，能使设计人员从繁杂的手工设计中解放出来，显著地缩短了产品的研发周期，避免了对产品的破坏性试验。对于产品的包装，特别是对于精密电子产品的包装，其经济效益是相当可观的。开发缓冲衬垫CAD系统进行计算机辅助设计，是缓冲包装发展的必然趋势。     

缓冲衬垫CAD系统的研究

传统的缓冲包装设计,考虑流通环境,根据实验或经验得出的产品脆值,确定缓冲衬垫的种类及结构尺寸,然后进行校核。通常要反复实验与比较,才能筛选出合理的设计结果。其设计在很大程度上依赖于设计人员的自身经验、破坏性试验所得的数据,这就造成产品和缓冲材料的浪费,并且设计过程需时较长,在一定程度上制约了缓冲包装设计的发展。利用基于VC平台开发的缓冲衬垫CAD系统进行缓冲包装     

基于异形产品的缓冲衬垫设计软件的研究与开发

介绍了利用Visual C++的异形产品缓冲衬垫设计软件的体系结构、功能模块,并进行了实例演示。结果表明:该软件具有缓冲衬垫计算与校核、产品信息数据处理及方案显示等功能,能够显著缩短缓冲设计周期,避免对产品的破坏性试验,具有实际应用价值。     

产品运输包装可靠性设计

要在运输过程中保护产品免受破坏,就需对产品进行缓冲包装设计,传统的包装设计方法具有明显的局限性.文中基于包装动力可靠性理论提出了一种新的运输包装设计方法,对运输包装可靠性设计的基本思想、设计流程、目标可靠性确定及可靠性校核等问题作了探讨,并从设计思想、流程等角度对新设计方法与传统设计方法进行比较,得出新设计方法设计出的缓冲包装能更好地保护产品.     

缓冲包装CAD系统的Delphi实现技术

论述了用Delphi开发工具来完成对缓冲包装CAD系统的开发,并详细讨论了涉及到的关键技术和实现方法.     

基于图形库与数据库的缓冲包装CAD系统

介绍了缓冲包装CAD系统（CPCAD）的总体结构、功能模块以及关键技术。系统以图形库和数据库为基础，基于VB平台开发，实现缓冲衬垫与瓦楞纸箱的一体化设计，系统具有良好的扩充性。     

基于ANSYS的打印机全瓦楞缓冲包装设计

基于产品的基本参数与流通环境,对HP Deskjet F2188打印机进行了缓冲包装设计。设计方案为:整体包装采用全瓦楞局部缓冲包装,缓冲垫采用折叠型双瓦楞纸质缓冲垫,外包装采用0201型平盖箱,黏合方式采用胶带黏合。其后,确定打印机包装件的跌落高度为100cm,在公路运输条件下的最大加速度约为4g,脆值为60g。最后,通过理论计算和ANSYS仿真2种方法进行校核,证明该包装设计完全满足打印机的缓冲要求。     

电子学习机的运输包装设计

根据产品特性,本着绿色化理念,结合具体的电子学习机进行系统的运输包装设计。采用箱板纸作为产品的销售包装材料,采用瓦楞纸箱对产品进行集合包装,并采用白卡纸板通过折叠黏合成型来实现对产品的缓冲保护。通过对产品销售包装纸盒和内部缓冲衬垫的结构进行设计和制作,并对外包装瓦楞纸箱进行具体数据的整理和计算,实现了整个运输包装设计中包装材料使用的绿色化。     

异形盒交互设计系统的研究

从立体构成原理出发对异形盒设计进行了分析,提出了以纸面为对象的立体构成原理进行异形盒设计的方法,从而使异形盒设计有规律可循,开发了异形盒交互系统的设计,就交互系统的功能框架、系统的设计流程、系统的操作界面等作了分析,并以实例证明了系统的实用性。     

基于Internet /Intranet的包装产品集成设计系统研究

包装产品设计与制造的技术参数繁多,通过对包装产品传统设计系统的特点的分析,提出了基于Internet /Intranet环境下的包装产品集成设计系统,给出了利用Internet /Intranet技术建立的网络模型,以及包括企业外部协作组和企业内部CAD及虚拟制造的包装产品集成设计系统工作流程,该流程设计在实际应用工程项目中已取得了很好的效果.     

并行工程环境下成形铸件制造工艺CAD／CAE系统

并行工程在发展中提出了合理产品设计／工艺设计新概念，在此基础上我们研究开发了一个以传热，热流及应力模拟为核心的铸件制造工艺ＣＡＤ／ＣＡＥ集成系统，系统既可独立运行，又可与并行环境下的产品集成起来，达到同时优化产品设计及工艺设计的目的。目前该系统在多家工厂得到应用，并逐步商品化。     

Product modeling within the framework of the World Wide Web

This paper presents an approach to the development of an open collaborative design environment in the Computer Aided Design (CAD) setting of a networked enterprise. Demand for high quality and variety of low to medium quality of products or 'mass customization' has led to the concept of'virtual organizations'. The de-centralized design teams of such an organization require a framework to manage the CAD product information. By integrating the emerging standard for 3D geometry on the World Wide Web with conventional CAD packages, we describe a framework for the development of a product model with various levels of abstractions. The syntactic content of the product model, accessible through any Internet interface such as Netscape Navigator associates itself with a centralized database for embedding technological information at the face and feature levels. The semanlic and syntactic content of the product model can then be accessed and manipulated through the single Internet interface. The system is deployed on a test-bed utilizing both a UNIX box and a machine operating under the Windows NT system, to demonstrate it's open architecture and interoperability.     

PDM与CAD的数据共享与应用集成

以三维CAD系统Inventor为例,探讨了CAD和PDM系统之间的数据共享和应用集成技术,PDM通过CAD的API（Add—In）获取产品设计信息,CAD通过PDM的Web服务获取产品零部件的“外部”属性,从而实现CAD和PDM系统之间的数据共享和应用集成．     

ISO10303-compliant computer-aided wheel-rim design system - the framework and data model

This paper focuses on developing a framework for a computer-aided part design system that considers design efficiency and facilitates product information sharing across the automotive supply chain. The system applies the concept of feature-based design to enhance the efficiency and effectiveness of auto-part design and implements the standard exchange of product (ISO10303/STEP) data model to enable the data sharing between original equipment manufacturers (OEMs), suppliers and customers. This research demonstrates the technology of standard data modelling for a feature-based CAD system to achieve cross-platform CAD/CAM integration. The framework supports technical data interchange (TDI) using international data standard to enable the concept of virtual engineering community and collaboration.     

Synthesis of the web-based CAD viewer for interference verification of injection moulds

This paper describes the development of a web-based interference examination system in mould design processes. Although several commercial computer-aided design (CAD) systems offer interference inspection functions, those systems are very expensive and inadequate to perform collaborative works over the Internet. In this paper an efficient and precise hybrid interference examination algorithm applicable to multilevel assemblies is studied for injection mould design processes. In order to design a collaborative system over the distributed environment, lightweight CAD files produced from the optimally transformed CAD data through ACIS kernel and InterOp are applied to develop a web-based interference verification system. Collaborators related to the development of a new product can verify the interference over the Internet without commercial CAD systems. The system reduces production cost, errors and lead-time to the market. The validity of the developed system is confirmed through case studies.     

基于并行工程的产品CAD系统研究

在产品ＣＡＤ过程中，使用并行工程是提高设计质量、缩短设计制造周期、减低生产成本的有效途径之一，本文在分析研究的基础上，提出了基于并行工程的产品ＣＡＤ系统的结构、特点及其实现方法。     

Towards automatic generation of plans for automated assembly

The present CAD/CAM systems still lack the appropriate CAE component that would allow more efficient assembly planning in the effort to integrate the product design, assembly system design, assembly device programming and assembly execution. The problem is related to both the complexity and incompleteness of the planning methodology, and the lack of the algorithmized planning elements. The previous explorations often concentrated on particular planning elements such as assembly sequence, neglecting the urge of integral and a more general approach. Furthermore, they sometimes pose tedious requirements on the user, causing him/her to focus more on the planning method than on the planning goal. The paper presents a CAD-based prototyping system for the generation of plans for automated assembly. It uses many relevant well-established concepts in the assembly planning field and proposes a few new ones (especially regarding assembly process space structuring), trying to achieve the highest possible level of automation, and to highlight the problems of computer implementation of the planning knowledge. A mechanical product to be assembled is, at first, a CAD modelled assembled product. After that, the planning elements such as assembly sequence, assembly paths and parts positions of disassembled product are defined, providing the basis for assembly device design and assembly execution.     

PDM环境下基于SolidWorks的变型设计及自动装配系统

在大批量定制环境下,基于PDM平台开发支持产品快速组合设计的变型设计系统可明显地提高企业设计资源的重用,从而缩短订单产品的设计时间;在综述了系统平台的体系结构和运行流程后,概述了运行平台各子系统的主要功能,在此基础上详细阐述了SolidWorks系统与运行平台的集成、设计与工艺信息的集成、零部件的变型设计和产品模型图的自动装配技术．实践证明,在PDM框架下,通过三维CAD系统的API所开发的设计系统可明显地提高企业设计资源的重用,并缩短订单产品的设计时间．