| 3DTS： A 3D tolerancing system based on mathematical definition |
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| 作者姓名： | CAO Yan-long LIU Yu-sheng MAO Jian YANG Jiang-xim |
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| 作者单位： | [1]Faculty of Mechanical and Energy Engineering, Zhejiang University, Hangzhou 310027, China [2]State Key Lab of CAD ＆ CG, Zhejiang University, Hangzhou 310027, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Nos. 50505046 and 50275136) and the Defense TechnologyFoundation of National Key Laboratory (No. 51489020104JW0401),China |
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| 摘 要： | INTRODUCTION Tolerance is imperative for seamless integration of computer-aided design (CAD) and computer aided manufacturing (CAM) (Bjorke, 1989; Wu and Yang, 1999) and influences greatly the quality, process planning, measurement, cost and assembly of the product. Many researches have been conducted on tolerance (Baer, 1979; Requicha, 1982; 1983; 1992; Clement, 1991). Most of these researches are focused on tolerance analysis and tolerance synthesis. In some commercial CAD/CAM sy…
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| 关 键 词： | 数学定义 公差 CAD CAM 3DTS |
| 收稿时间： | 2005-10-20 |
| 修稿时间： | 21 May 2006 |
3DTS: A 3D tolerancing system based on mathematical definition |
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| CAO Yan-long LIU Yu-sheng MAO Jian YANG Jiang-xim.3DTS: A 3D tolerancing system based on mathematical definition[J].Journal of Zhejiang University Science,2006,7(11):1810-1818. |
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| Authors: | Yan-long Cao Yu-sheng Liu Jian Mao Jiang-xin Yang |
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| Institution: | (1) Faculty of Mechanical and Energy Engineering, Zhejiang University, Hangzhou, 310027, China;(2) State Key Lab of CAD & CG, Zhejiang University, Hangzhou, 310027, China |
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| Abstract: | Tolerance is almost ubiquitous during the whole product lift cycle and is imperative for seamless integration of CAD and CAM. Based on the mathematical definition of tolerance, a 3D tolerancing system, 3DTS, is presented with its design prin- ciple, system architecture and key functions. The following functional modules, tolerance modeling, semantics interpretation, 3D tolerance analysis, are described in detail. To make the tolerancing system robust and efficient, many techniques such as hierar- chical tolerance representation, rule-based evaluation and non-intersection determination of tolerance zone have been devised. Tested by many samples, this system shows good robustness and practicability. |
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| Keywords: | Tolerance Mathematical definition CAD/CAM |
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