the main objective of this paper is to propose a new machining feature definition model focused on 5D-machining features. the machining features describing a Prisronal part, which includes both prismatic and rotationa...
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ISBN:
(纸本)0769524737
the main objective of this paper is to propose a new machining feature definition model focused on 5D-machining features. the machining features describing a Prisronal part, which includes both prismatic and rotational features, are introduced. the unique model is not only taking into account geometric entities, manufacturing aspects but also including machining processes and knowledge-based rules for intelligent process planning system of five-axis lathe. Geometric entities are specified by defining feature parameters corresponding to the shape of feature. Manufacturing aspects include properties of blank part, settings up and technological data like tolerances and surface finishing. Machining processes and knowledge-based rules attached with each feature are used as constraints to guide the system for automatically selecting suitable machining operations. Various examples of 3D & 5D-machining feature attached with knowledge-based for machining those features by five-axis lathe are shown. Finally, the pilot implementation of machining features for operation selection is demonstrated using the expert system shell named Visual Rule Studio (TM) from Rule Machines corporation.
the product robust design which based on evolutionary algorithm could improve the general degree of the products greatly, achieve maximum product function, and meet the diverse needs of users. the product characterist...
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computergraphics imaging technology has opened up a new horizon for the development of the creative works of art and appreciation. the digital virtual 3D simulation of Chinese ink painting is more than a simple analo...
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ISBN:
(纸本)9781424452675
computergraphics imaging technology has opened up a new horizon for the development of the creative works of art and appreciation. the digital virtual 3D simulation of Chinese ink painting is more than a simple analog simulation of traditional ink painting effect, but a simulation of artistic sytle of Chinese ink painting. the digital virtual 3D simulation of ink painting beyond the traditional 2D art at the appreciation level, it combines 3D display technology of animation, virtual reality and immersive interactive technology to create an unprecedented aesthetic experience of digital 3D ink painting.
Volumetric mesh models are widely used nowadays in areas like product quality evaluation, physically-based deformation, numerical simulation, and so on. In the application of computeraideddesign (CAD) and computer A...
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this paper presents a real-time foveation rendering algorithm to simulate the gaze contingent vision of a 3Dscene. the novelty of our approach lies in two aspects, namely, an image-space adaptive sampling mask adherin...
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the declarative language Ruby provides a coherent framework for representing and developing designs. Sketching diagrams for Ruby programs by hand is, however, time- consuming and error-prone. this paper describes a de...
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ISBN:
(纸本)0819420158
the declarative language Ruby provides a coherent framework for representing and developing designs. Sketching diagrams for Ruby programs by hand is, however, time- consuming and error-prone. this paper describes a design sketcher which automates the production of a diagram from a Ruby description.
In sportswear accessories market in China, the competition is in keen environment., the famous brands having stationed in foreign countries, occupy a large market share, and are in domination, although some Chinese sp...
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In this paper the wave recursive interpolation of uniform T-subdivision scheme including wave parameter is defined. the convergence of sequences of control polygons produced by wave recursive interpolation T-subdivisi...
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ISBN:
(纸本)0819420158
In this paper the wave recursive interpolation of uniform T-subdivision scheme including wave parameter is defined. the convergence of sequences of control polygons produced by wave recursive interpolation T-subdivision scheme and the smoothness of the limit curve are analyzed.
Tactile graphics are images that use raised surface so that a visually impaired person can feel them. Tactile graphics are necessary to visually impaired students when they study mathematics and science. Since produci...
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ISBN:
(纸本)9781467327435;9781467327428
Tactile graphics are images that use raised surface so that a visually impaired person can feel them. Tactile graphics are necessary to visually impaired students when they study mathematics and science. Since producing tactile graphics are not simple task, an intelligent computer-aided system for assisting the production of tactile graphics is needed. Mathematical graph recognition from printed materials plays an important role to develop such a system. So, this paper focuses on part of a method of mathematical graph recognition. A mathematical graph includes graph elements such as the rays representing the x-axis and the y-axis and the line segments or the curves representing functions or equations. Graph elements are often drawn so that they are overlapped each other. So, this paper discusses a method for extracting graph elements from an element which is drawn by overlapping more than one graph element. the effectiveness of our method is evaluated by a computer experiment.
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