芜湖机电工业扬帆国外市场

芜湖市机电产品出口创汇额，已连续八年雄居安徽省机械行业之首。在国外机电产品的激烈竞争中，芜湖机电工业能有一席之地，是因为该系统强化行业管理，牢牢抓住营销机制的改革，走出了一条产品以新取胜，多方位寻找创汇机遇的新路子。1．发挥科技优势，不断开发扶产品足抢占机电产品出D制不点的必备武四芜湖电机厂自80年代初期开始出口分马力电机，以后规模逐年扩大，成为国内分马力电机行业出口的排头兵。其关键是加大技术改造力度、力促产品质量上档次。该厂的“电机开发研究中心”年年出新品，每年平均有3至5个新产品问世，并投入批量…     

在Word软件中AutoCAD图形的处理方法

介绍了将 Auto CAD图形插入到 Word中的几种方法 ,并充分利用向导和Auto CAD2 0 0 0新增功能等图形处理技巧 ,使文章图文并茂     

苏州市机械系统出现CAD热

苏州市机械系统近几年出现了CAD热。CAD，是计算机辅助设计的简称，它是SO年代末世界范围内最杰出的工程技术之一。苏州市机械局将推广CAD工作作为提高产品开发能力的重要手段和一项战略任务来抓，先后在企业领导中普及CAD知识，举办工程技术人员培训班，召开软件推广演示会等宣传教育活动，并制订目标值进行跟踪考查，使CAD技术的推广运用不断推向深人。到目前为止，苏州市机械系统已有SO％的企业开展了CAD工作，并在电机、铸造机械、起重机械、电器、液压元件、汽车配件、线切割机床、光学仪器、机械基础件、变频器等产品上得到…     

CAD图形软件的性能分析与应用

随着现代化信息技术的迅猛发展,对三维实体图形软件的需求越来越高。CAD图形软件性能对环境艺术设计、平面设计、动漫设计等均具有重大影响。本文首先介绍了图形软件和设计之间的关系,之后对几种图形软件性能进行介绍和对比分析,并总结了其中存在的不足。     

AT4型电机绕组检测仪及其应用

AT4型检测仪是美国BJM公司研发的产品，曾两次获美国工程成就大奖，由北京西马力检测仪器公司代理经销，本检测仪在断电和不拆开电机的情况下，能快速准确判断确定子，转子的故障程度，并可诊断出微小的萜间短路。     

CENTRUN-3000系列数控冲床CAD图形兼容性的解决

1.存在的问题 目前国内开关行业引进日本村田公司CENTRUN-3000 系列数控转塔冲床较多.在冲床专用加工软件CAMPATH环境下利用软件自带CAD绘制零件展开图后(或调用其他CAD软件绘制的展开图),进行CAM,最后通过IC卡输入冲床,加工零件.     

基于OpenGL的C++Builder5.0三维图形处理

OpenGL是近年来发展迅速的一个性能卓越的三维图形标准,在许多领域得到了广泛的关注和应用。本文结合应用CAD软件的开发,介绍了在C++Builder5.0和Windows环境下,采用OpenGL构造三维图形的基本操作和图形绘制过程,对其主要细节实现进行了详细的探讨。     

CT19型弹簧机构拆装工具

革新者:河南商丘供电公司河南商丘供电公司在对CT19型弹簧机构进行维护时发现,在更换储能电机、分合闸线圈时需要将储能弹簧拆下,而该种弹簧机构特别紧凑,在拆装弹簧时由于储能弹簧有一定的预拉性,在没有专用工具情况下不太好拆装,影响了检修进度,延长了停电时间。     

普通磨床进给的步进电机控制改造

用PLC控制步进电机驱动器,实现加装的步进电机方向和速度控制。电机的进给控制分连续和断续方式,且速度在运动中可调。     

简议服装企业对服装CAD的选择

本文对目前市场上的服装CAD系统的缺陷和不足提出了相应的指导性意见供软件开发人员参考,并具体分析服装企业对CAD的兼容性的要求和具体的选配方法,使服装厂家在选择服装CAD产品时有所参考。     

用AUTOLISP实现分马力电机可变尺寸图形的绘制

AUTO LISP 是嵌套在 AUTO CAD 绘图软件包中的一种功能很强的智能语言,可在绘图软件包环境下直接运行,是一种很适合绘制“可变尺寸图形”的方法。本文详细地研究了 AUTO LISP 源程序编制、在系统状态下编辑程序和在 HCAD 状态下绘图等内容。对 AUTO CAD 的开发应用具有重要作用。     

Effects of cognitive styles on 2D drafting and design performance in digital media

This paper investigates the interactions between design students’ cognitive styles, as measured by Riding’s Cognitive Styles Analysis, and performance in 2D drafting and design tasks in digital media. An empirical research revealed that Imager students outperformed Verbalisers in both drafting and creativity scores. Wholist–Analytic cognitive style dimension was found to be independent from drafting and design performance. The study suggests that examining the cognitive styles of students in Computer Aided Design (CAD) education deserves further attention and may facilitate for improvements in learning processes.     

Exploring perceptions and attitudes towards teaching and learning manual technical drawing in a digital age

This paper examines the place of manual technical drawing in the 21st century by discussing the perceived value and relevance of teaching school students how to draw using traditional instruments, in a world of computer aided drafting (CAD). Views were obtained through an e-survey, questionnaires and structured interviews. The sample groups represent professional CAD users (e.g., engineers, architects); university lecturers; Technology Education teachers and student teachers; and school students taking Scottish Qualification Authority (SQA) Graphic Communication courses. An analysis of these personal views and attitudes indicates some common values between the various groups canvassed of what instruction in traditional manual technical drafting contributes towards learning. Themes emerge such as problem solving, visualisation, accuracy, co-ordination, use of standard conventions, personal discipline and artistry. In contrast to the assumptions of Prensky’s thesis [(2001a) Digital natives, digital immigrants. On the Horizon 9, 5. NCB University Press Retrieved Oct 2006 from http://www.marcprensky.com/writing/Prensky%20-%20Digital%20Natives,%20Digital%20Immigrants%20-%20Part1.pdf; (2001b) Digital natives digital immigrants, Part 2: Do they really think differently? On the Horizon 9, 6. NCB University Press retrieved Oct 2006 from http://www.marcprensky.com/writing/Prensky%20%20Digital%20Natives,%20Digital%20Immigrants%20-%20Part2.pdf] of digital natives, the study reported in this paper indicates that the school students apparently appreciate the experience of traditional drafting. In conclusion, the paper illustrates the perceived value of such learning in terms of transferable skills, personal achievement and enjoyment.     

API Spec 15HP-1995《高压玻璃纤维管线管规范》的分析与介绍

本文介绍了高压玻璃纤维管线管规范的制定技术背景和主要特点,分析了前后两版的修订内容及原因.     

石油地质图件标准化研究

石油天然气地质图件的编图标准已以石油天然气行业标准在1992年发布,手工编制地质图件时应加遵守,而且在计算机自动绘图时同样要加以遵守.因此,在实现地质绘图软件工程的各项工作中应予以充分考虑.     

关系网络、跨组织知识整合与 组织创新绩效的关系实证研究

本文分析了跨组织知识整合的内涵和要素结构,将跨组织知识整合划分为外部知识捕获、内外知识交融和新知识应用3个环节,建立了关系网络、跨组织知识整合和组织创新绩效之间的理论模型,并以229家企业为对象运用结构方程模型进行实证研究,并得出结论,外部关系网络对外部知识捕获有正向影响,内部关系网络对外部知识捕获、内外知识交融和新知识应用均有正向影响,内部关系网络对组织创新绩效有正向影响,跨组织知识整合在内部关系网络与组织创新绩效间起着中介作用,为企业通过外部和内部关系网络提升跨组织知识整合能力,进而提升组织创新绩效提供理论基础和实践参考。     

由三维模型到二维投影

利用AutoCAD的三维模型,在AutoCAD的图纸布局中设置浮动视口,将三维模型向不同的投影面进行投影,然后使用Solprof,Solview,Soldraw命令提取三维模型的投影轮廓线并做适当的编辑操作,可以生成三维模型的二维投影图———视图与剖视图。用这种方法获得的二维投影图与三维模型之间存在着内在的联系,所以投影正确,避免了直接作二维投影图时容易产生多余或遗漏图线的现象,具有作图效率高、不易产生投影错误的优点。     

策略性行为理论研究

新产业组织理论研究的焦点是策略性行为，本文从短期、中期、长期三个层面系统梳理和评述了西方策略性行为理论前沿，旨在为研究企业的竞争行为提供有效工具．深化对复杂交易现象背后的动机和福利效果的理解，同时也为政府制定保护竞争、促进竞争的公共政策提供坚实的理论基础。     

产品标准中的技术要素及技术水平初探

企业产品标准中的技术指标体现了该产品的特点和性能，因此正确和合理地编写产品标准的技术指标，是产品标准起草的关键，也是企业标准水平的主要体现从企业产品标准中的技术方面入手，讨论了科学编写技术指标的重要性。     

Teaching for CAD expertise

CAD (Computer Aided Design) has now become an integral part of Technology Education. The recent introduction of highly sophisticated, low-cost CAD software and CAM hardware capable of running on desktop computers has accelerated this trend. There is now quite widespread introduction of solid modeling CAD software into secondary schools but how much is really known about the processes of learning and teaching CAD, particularly solid modeling? This paper will discuss current practice in CAD teaching and the way this relates to solid modeling. It will discuss the findings of current research with particular emphasis on the difference between command knowledge and strategic knowledge and how this relates to the development of CAD expertise. Command knowledge is referred to as knowledge of the commands (algorithms or tools) and the procedures to use those tools within CAD software while strategic knowledge is concerned with knowledge of the alternate methods by which a specific task may be achieved and the process by which a choice may be made. The results of a recent experimental study into the teaching of CAD expertise will then be outlined and the implications for the teaching and learning process will be discussed.