| 基于SDT的平面尺寸公差模型研究及应用 |
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| 引用本文： | 茅健,张恒,曹衍龙. 基于SDT的平面尺寸公差模型研究及应用[J]. 工程设计学报, 2010, 17(5): 321-324. DOI: 10.3785/j.issn.1006-754X.2010.05.001 |
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| 作者姓名： | 茅健 张恒 曹衍龙 |
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| 作者单位： | 上海工程技术大学,机械工程学院,上海,201620;浙江大学,现代制造工程研究所,浙江,杭州,310027 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 公差建模是在CAD系统中进行准确无误的公差表述,并对其语义作出正确合理的解释.为了在CAD系统中表示出公差的工程语义,提出一种基于SDT(small displacement torsor)的平面尺寸公差建模方法.根据约束条件将平面尺寸公差分为2类,研究了不同类型尺寸公差的约束关系,建立相应的尺寸公差数学模型,完整地表示出尺寸公差的工程语义.最后用此模型对公差综合进行验证,在满足装配要求的条件下,给出SDT中各个分量,得出平面尺寸的公差值,结果表明该方法合理有效.
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| 关 键 词： | 平面 SDT 尺寸公差 公差综合 |
Research and application on model of size tolerance for plane based on SDT |
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| MAO Jian,ZHANG Heng,CAO Yan-long. Research and application on model of size tolerance for plane based on SDT[J]. Journal of Engineering Design, 2010, 17(5): 321-324. DOI: 10.3785/j.issn.1006-754X.2010.05.001 |
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| Authors: | MAO Jian ZHANG Heng CAO Yan-long |
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| Affiliation: | MAO Jian1,ZHANG Heng2,CAO Yan-long2(1.College of Mechanical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China,2.Institute of Modern Manufacturing Engineering,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | Tolerance modeling is used to present the tolerance accurately in CAD system and interpret the semantics correctly.In order to present the tolerance semantics in CAD system,small displacement torsor(SDT) was introduced in tolerance modeling.A new method of mathematical model of size tolerance for plane was proposed.The representation approaches of geometric elements based on SDT were introduced firstly.According to constraint,conditions of dimension chain,size tolerance for plane was divided into two types.... |
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| Keywords: | plane small displacement torsor(SDT) size tolerance tolerance synthesis |
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