共查询到20条相似文献,搜索用时 171 毫秒
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以离心泵泵体水力模具为基础,提出了采用逆向三维扫描检测手段进行产品设计的数据处理方法,并以性能优异水力模型泵体模具为例,开展了针对泵体逆向工程的一系列数据处理研究,最后结合泵体三维表达与建模方法,对泵体完成三维建模的设计工作。通过实际生产过程应用,证明该逆向工程研究方法合理可行,可广泛应用于、单级泵、中开泵及多级泵的逆向工程方法中去,可解决泵体模具误差检测、模具逆向工程求解以及模具磨损修复。 相似文献
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基于Geomagic Studio软件的逆向工程设计 总被引:4,自引:0,他引:4
华东交通大学摘要:以摩托车护手罩为设计对象,介绍了基于逆向工程和三维检测软件Geomagic Studio进行逆向工程设计的实施方案和操作步骤。 相似文献
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通过对犁臂三维测量、点云数据处理及三维模型重建整个过程的介绍,说明了如何利用逆向工程技术进行产品的再开发设计以及采用软件Imageware及UGNX完成此项技术的关键问题。并对模型的精度进行了检测。 相似文献
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立体视觉指导下的CMM集成智能检测系统在逆向工程?… 总被引:1,自引:0,他引:1
如何获取原型实物的三维数据并生成其三维模型是逆向工程中的重要环节。本文提出了利用三坐标测量机(CMM)和立体视觉的集成智能检测系统高效,柔性,准确地实现逆向工程,着重论述了系统的原理,结构和其中的关键技术。 相似文献
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逆向工程关键技术研究 总被引:6,自引:0,他引:6
讨论了逆向工程的特点和应用,重点分析了逆向工程(RE)的几个关键技术,包括:点云数据的获取、曲面重构、三维建模以及与其他系统的数据交换。分析了逆向工程中实现条件,并且对其发展进行了展望。 相似文献
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Ming-Chih Huang Ching-Chih Tai 《The International Journal of Advanced Manufacturing Technology》2000,16(9):635-642
Reverse engineering has become an important tool for CAD model construction from the data points, measured by a coordinate
measuring machine (CMM), of an existing part. A major problem in reverse engineering is that the measured points having an
irregular format and unequal distribution are difficult to fit into a B-spline curve or surface. The paper presents a method
for pre-processing data points for curve fitting in reverse engineering. The proposed method has been developed to process
the measured data points before fitting into a B-spline form. The format of the new data points regenerated by the proposed
method is suitable for the requirements for fitting into a smooth B-spline curve with a good shape. The entire procedure of
this method involves filtering, curvature analysis, segmentation, regressing, and regenerating steps. The method is implemented
and used for a practical application in reverse engineering. The result of the reconstruction proves the viability of the
proposed method for integration with current commercial CAD systems. 相似文献
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逆向工程及其相关技术 总被引:4,自引:0,他引:4
在工业生产中,为了设计、分析和制造等目的,经常需要按照实物建立相应的几何模型,为此逆向工程技术受到愈来愈广泛的重视。本文在介绍了逆向工程的含义及其主要应用领域后,重点介绍了逆向工程中的一些相关技术问题,包括:物体表面坐标点的采集方法,坐标点集的精简、分割、拟合处理等。对逆向工程有待进一步研究的问题亦作了简要的说明。 相似文献
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Reverse engineering has been widely used to analyze existing objects such as software systems, products, etc. The main purpose is obtaining information by disassembling a product and finding an improved design. Based on the disassembling work, research for a systematic analysis has been well developed, but reverse engineering has been rarely employed in finding a new (an improved) design of a complex and large scale product. Therefore, even though the ultimate goal of reverse engineering is an improved design (or redesign), the opportunity to make a new feature is rarely given. A novel method of reverse engineering is proposed by using the axiomatic design viewpoint. The method not only keeps the fundamental concept of reverse engineering, but also realizes a new (or improved) design according to proposed procedures such as inference, design improvement module and a qualitative evaluation. A complex and large scale product (a ceiling type air conditioning system) is chosen as a case study to validate the proposed method. As a result, useful information for a new (or improved) design is obtained and also a new part (filter cleaning system) is proposed. The methodology provides a good way to design a new (or improved) product. 相似文献
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集成反向工程系统的模型和结构 总被引:4,自引:1,他引:4
用系统集成和面向对象的思想建立了集成反向工程系统的模型和结构,将反向工程在制造领域中所领域中报需要的各种类型的数据和特征采用类的方式进行定义,这样容易解决系统中不同数据的传递和传递和异类数据库之间联系等问题,为今后对该系统的进一步研究奠定了基础。 相似文献
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实物逆向工程中的关键技术及其最新发展 总被引:13,自引:0,他引:13
逆向工程是将实物转变为CAD模型相关的数字化技术、几何模型重构技术和产品制造技术的总称。在各工业领域有广泛的应用。总结了逆向工程中的数据获取、数据预处理、曲面重建等主要技术,分析了一些比较典型的方法,并就其在国内、外最新的研究进展进行了介绍。 相似文献