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运用三维绘图软件SolidWorks改革工程图学教学的实践 总被引:14,自引:3,他引:14
指出了二维绘图软件AutoCAD已经不能满足目前企业新产品设计的需要以及现有的多媒体CAI课件仍然不能充分发挥教师的主导作用,不能满足交互性和实时性的教学需求。论述了工程图学引入三维CAD软件的必要性和重要性。运用三维机械软件SolidWorks,提出了三维画法几何,并从三维入手改革了工程图学的教学,连续3年在15个班的学生中进行了试点,取得了良好的教学效果。总结了改革过程中的一些做法和经验。 相似文献
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随着三维CAD软件的发展及广泛应用,传统工程图学已发生了深刻的变化,现代工程图学学科已与工程设计有机地联系在一起.在此新形势下,提出在工程图学的教学中,将CAI课件与三维CAD软件相结合,一方面培养学生发散性和创造性思维的能力,另一方面,以设计为主线将各部分教学内容紧密联系在一起,潜移默化中启发学生从设计的角度来分析问题和解决问题. 相似文献
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利用Solid Edge开发与应用工程图学CAI积件 总被引:1,自引:0,他引:1
针对当前工程图学CAI课件开发与使用中存在的内容不可修改、使用灵活性差等诸多不足,提出了利用Solid Edge开发工程图学CAI积件的思想与方法。并已在截交线、相贯线、组合体、机件表达方法、零件图、装配图等课堂内容方面进行了积件开发。积件将现代三维造型方法引入了工程图学课堂教学,立体三维造型与二维投影同时显现、协同变化,充分发挥了计算机与教师的双重作用,使教与学动态结合起来,取得了较好的教学效果。 相似文献
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随着高等教育的迅速发展,工程图学传统的挂图、模型、板书的教学方式已不能适应教学需求,而多媒体CAI课件又存在着不能展示不同的教学策略,不能随需应变等缺陷。提出用SolidWorks和ObjectARX改革工程图学教学方式的新方法,并论述了这一创新方法的重要性和优越性。说明了用SolidWorks创建三维形体的必要性及其在读图中起到的实物模型无法达到的效果。介绍了用ObjectARX在改进AutoCAD中求第三视图的方法。运用这种灵活多变、实用便捷的教学模式,使得教与学都变得轻松,获得了良好的教学效果。 相似文献
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引入三维几何建模的工程图学教学模式分析与比较 总被引:3,自引:3,他引:3
分析了引入三维几何建模后的工程图学教学模式的特点和内涵。通过研究近年来国内部分高校引入三维几何建模的工程图学的教学实践,对三维几何建模引入工程图学的教学内容、教学方法、教学效果进行了比较与分析,找出了引入三维几何建模的工程图学不同教学模式的优势和存在的问题,提出了引入三维几何建模的工程图学教学模式的基本观点和基本原则。 相似文献
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基于计算机多媒体技术的CAI教学实践 总被引:3,自引:0,他引:3
研究运用计算机多媒体技术以提高CAI软件的质量,加速教学手段的现代化,优化CAI教学环境的方法。介绍“工程制图”计算机辅助教学实践的体会。 相似文献
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This paper presents a model for the numerical simulation of impact damage, permanent indentation and compression after impact (CAI) in CFRP laminates. The same model is used for the formation of damage developing during both low-velocity/low-energy impact tests and CAI tests. The different impact and CAI elementary damage types are taken into account, i.e. matrix cracking, fiber failure and interface delamination. Experimental tests and model results are compared, and this comparison is used to highlight the laminate failure scenario during residual compression tests. Finally, the impact energy effect on the residual strength is evaluated and compared to experimental results. 相似文献
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通过水准测量条件平差CAI课件开发过程的介绍,提出了一种实用、简单,面向测绘新技术教学的多媒体课件开发的新概念。 相似文献
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实时交互行为三维动画的设计技术 总被引:7,自引:3,他引:4
实时交互行为三维动画是主动式CAI软件的重要组成部分,本文通过作者开发的“基于Web的工程制图CAI软件--立体的表达方法”为例,详细介绍了利用VRML2实现基于Web的实时交互行为真实三维动画的设计技术,该技术在远程教育、异地协同设计等方面具有重要的现实意义。 相似文献
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汪训昌 《制冷与空调(北京)》2003,3(3):51-56,32
本文在论述了中国工商制冷CFCs淘汰进程基础上,重点讨论了制冷空调行业使用制冷剂的特点及其对全球环境的影响,什么是制冷剂的3R管理?怎样做好制冷剂的3R管理工作?最后得出了在制冷空调行业做好氟烃类制冷剂3R管理工作的三点意义的结论。为了说明HCFCs与HFCs制冷剂在中国制冷空调行业中的使用前景,在文中还介绍了发展中国家淘汰HCFCs制冷剂的时间表及UNEP与ICAR—MA对使用HFCs制冷剂的政策立场。 相似文献
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AbstractThe central questions of this article are: How can the design of program management contribute to the success of complex software implementations? How do we deal with the complexity that large implementation projects encounter from changes over time and from strong integration needs? These questions become increasingly pertinent as software projects include the implementation of new internet-based IT architectures and business models. To answer these questions, we propose ways that have worked well in recent complex multi-project Enterprise Resource Planning (ERP) implementations (“programs”). We start by defining complexity in this context and making it measurable through three dimensions: variety, variability, and integration. We then investigate 15 cases and outline how our framework can be applied to deal with increasing ERP implementation complexity. One of our conclusions is that successful implementation programs leave more room to explore innovative technology but are more rigorous in rolling out proven technology. They differentiate their approaches according to the extent of the different complexities they encounter. In particular, they adjust the number of parallel rollout activities to the static complexity (variety) and organize the alignment of IT and business needs during the parallel activities according to the integration needs. 相似文献
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Performance of a domestic refrigerator under influence of varied expansion device capacity, refrigerant charge and ambient temperature 总被引:1,自引:1,他引:0
This paper reports experimental results of an on/off cycling domestic refrigerator at varied expansion device capacity (EDC), quantity of charge and ambient temperature. It was found that the energy consumption is insensitive to varied EDC and charge within a wide range of settings. For the charge this is explained by the low side accumulator, which buffers over- and undercharge. It was also found that the optimum charge increased at lower ambient temperature. The paper describes an experimental procedure on how to determine the capillary tube length and the quantity of charge for a domestic refrigerator/freezer. This procedure is recommended since it takes different thermal masses and loads into consideration and since the potential for energy saving with a more sophisticated method appears to be limited. 相似文献
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The Engineering Design Centre (EDC) in fluid power systems, was established in the School of Mechanical Engineering, University of Bath in 1992 to develop computer-based techniques for fluid power systems design. This paper gives an overview of the research being undertaken at the EDC relating to: system design and performance evaluation using computer simulation; the development of a database for hydraulic components; software tools to minimize noise and vibration; circuit configuration design; and optimization techniques for component selection and sizing. 相似文献