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Solidworks结合AutoCAD与3DMAX实现机械产品设计 总被引:3,自引:0,他引:3
根据机械产品设计先三维后二维的实际过程,采用三维功能强大且简单易学的Solidworks软件实现三维产品设计,将自动生成的二维图形导入AutoCAD中进行简单修改后输出二维图;同时,将三维实体图导入3DMAX中进行渲染与动画制作,在产品真正生产出来之前实现其动作的虚拟仿真,及早发现和解决问题;Solidworks,AutoCAD与3DMAX三者相结合实现高质量的机械产品设计。 相似文献
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Web环境下的交互式3D虚拟展示 总被引:3,自引:1,他引:2
分析了常用的产品虚拟展示技术及设计工具,提出了Web环境下动态交互式3D浏览的具体方法.在Web浏览器端,通过ActiveX控件显示产品的三维模型和二维工程图,允许旋转、平移、缩放等操作.同时通过调用Solid Edge等三维CAD软件的二次开发接口,实现产品的在线驱动.最后,利用ASENET技术开发了一个工业产品虚拟展示的网站. 相似文献
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《中国新技术新产品》2016,(21)
本文通过对现有农机产品造型、色彩、人机交互等方面的分析,归纳出先进农机产品造型语言,色彩搭配,人机交互的特征,对现有的蓖麻剥壳机进行设计改良。使用二维软件和三维软件进行虚拟设计,模拟产品的真实情况。设计过程耗费时间短,修改方便,效果直观真实,有效地解决了传统的农机设计中,设计进度缓慢,返工和修改工作量大的问题,缩短了生产周期,降低了开发成本。 相似文献
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基于Web的虚拟现实模型创建工具 总被引:9,自引:3,他引:9
虚拟现实模型语言VRML(Virtual Reality Modeling Language)可用于构造基于Web的三维虚拟场景,但由于其自身的繁杂性,直接构造三维虚拟空间较为困难。针对这种情况,提出了一种基于Web的虚拟现实模型创建工具的实现方法,用Visual C 6.0 作为系统开发平台,用目前通用的3D图形API标准OpenGL 实现模型预览。采用面向对象技术,达到了无须直接接触VRML代码进行编码生成可供Web浏览的三维模型的目的,从而可提高VRML构造虚拟场景的工作效率。 相似文献
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为了解决虚拟三坐标测量软件对军工涉密项目中零件检测路径规划问题,提出了一种基于二维视图的三维重构技术,设计了旋转工件轮廓二维视图的智能输入系统;操作人员根据提示输入图纸上旋转体母线的关键信息;系统软件对输入信息进行连续性、交叉性和封闭性判断,以构成正确轮廓母线;环绕旋转轴旋转母线重构出三维实体模型,按照标准IGES文件格式输出,从而实现二维视图的三维实体重构、生成的IGES文件提供给坐标测量机系统软件,可实现坐标测量机的自动化测量.联合运用该输入系统与虚拟三坐标测量机,解决了军事涉密项目中零件检测的路径动态规划问题 相似文献
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《现代电影技术》2016,(1)
虚拟电影制作已经成为未来电影制作流程的必然发展方向。虚拟电影制作是使用计算机虚拟技术来辅助甚至取代传统电影拍摄制作的某些环节,对传统的电影制作流程进行虚拟化,实现在虚拟环境下实时交互地进行电影制作。图像合成技术用于将不同的图像元素合并到同一幅画面里。数字图像合成所必需的几个因素是像素值、遮罩、Alpha通道,在合成过程中还需要对不同元素之间的遮挡关系进行正确处理。针对图像合成中图像元素之间存在的动态遮挡关系变化,目前仍没有自动化的解决方案。本文提出了一种动态遮罩技术,通过实时跟踪人物与摄像机的距离,并动态地对三维虚拟场景进行分层,从而实现人物与三维虚拟场景之间遮挡关系的动态变化。 相似文献
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张瑞 《真空科学与技术学报》2013,33(8)
以同轴腔高功率多注速调管为研究对象,以大信号程序KLY及PIC粒子模拟软件对其多电子注-波互作用系统开展了一维初始设计、二维等效设计及全三维模拟设计.通过采用二次谐波腔技术及参数优化,使同轴腔注-波互作用系统达到了70%以上的计算效率.与传统长漂移管方案注-波互作用系统相比,二次谐波腔方案不仅可以获得较高的注-波互作用效率,并且其系统长度可比传统方案缩短35%,有利于器件小型化.文中给出了以单通道圆柱腔代替多通道同轴腔的注-波互作用系统二维等效快速计算方法,与一维及三维计算结果的对比表明,这种方法具有较高的计算精度. 相似文献
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Christopher Durugbo 《国际生产研究杂志》2016,54(12):3749-3776
Collaborative networks (CNs) leverage the improving sociability and usability features of information technology to enable and enhance partnering that delivers competitive solutions. This partnering is motivated by business, supply chain, market and technological evolutions that create uncertainty and pressure on independently operating firms. Accordingly, literature on CNs has enhanced practice by shedding light on the collaboration patterns that underlie CNs and the different management mechanisms that are required to cope with the complexity of CNs. The purpose of this article is to systematically review the state-of-the-art of research for CNs with a view to identifying future research potentials and directions. It offers an assembling, critical appraisal and synthesis of the literature on CNs and focuses on the logic and management of CNs. It contributes to knowledge by outlining a multi-level framework of CNs based on the review findings. It is anticipated that the review will serve as the foundation for breaking new grounds in research and further advance the discipline of CNs. 相似文献
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Design review (DR) is a product development (PD) activity used to inspect the technical characteristics of a design solution. Immersive virtual reality (IVR) technology enables the presentation of spatial information and interaction with 3D CAD models inside an immersive virtual environment (IVE). Such capabilities have shown the potential to mitigate the cognitive load needed for the visual perception of spatial information and, consequently, enhance design understanding and DR performance. Thus, an increasing number of studies have explored the effect of IVR technology on DR activities in different domains. However, determining when the implementation of IVR technology rather than a conventional user interface for DRs in mechanical engineering PD projects will be beneficial remains unclear. Hence, a conceptual DR experimental study was conducted to investigate the differences in the ability of engineering students to identify mechanisms and understand their functions when a design solution for a technical system is presented in an IVE by IVR technology and in a non-immersive virtual environment (nIVE) by a conventional user interface (monitor display, keyboard, and mouse). Data were collected by performing DR tasks and having participants complete a prior experience questionnaire, presence questionnaire, and mental rotations test. Findings of the study indicate that IVR does not support an enhanced ability of engineering students to identify mechanisms and understand their functions compared with a conventional user interface. 相似文献
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给出虚拟包装企业和虚拟包装模型的概念,讨论了虚拟包装企业的构建形式,分析了虚拟包裝企业中虚拟设计运行、虚拟包装模型运行和包装生产虚拟运行方式等. 相似文献
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J. S. Dagpunar 《Quality and Reliability Engineering International》1997,13(4):235-245
We consider a component which undergoes instantaneous general repairs on failure. Suppose that Vi = ϕ(Vi−1 + Yi), where Vi is the virtual age immediately after the ith failure, Yi is the time between the (i − 1)th and ith failures, ϕ(·) is a specified repair functional, and V0 = s. We derive integral equations for the repair density, and also for the joint density of repairs with respect to chronological age and virtual age on failure. In the asymptotic case, approximations are obtained for the mean and variance of virtual age on failure, virtual age after repair, and time between failures. Two policies are then considered. The first, an upgraded repair strategy employs minimal repairs until the component reaches a specified age, thereafter repairs restore the virtual age to that prescribed level. The second policy considered is the Kijima Type 2 model which is not amenable to the usual g-renewal analysis that is used in the Type 1 model. The repair density is obtained by numerical solution of the relevant integral equation. Finally, approximations for the asymptotic moments are found to be in close agreement with simulated results. © 1997 John Wiley & Sons, Ltd. 相似文献
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虚拟现实技术在城市规划设计中的应用 总被引:1,自引:0,他引:1
根据城市规划在城市发展中的地位,论述了虚拟现实技术及其在城市规划中的应用现状,总结了在城市规划设计过程中,实现基于web的多用户、可漫游、可视化的3D虚拟城市的关键技术和目前存在地问题,并指出了VR技术在城市规划设计中未来的应用趋势. 相似文献
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