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�������պ����ѧѧ�� 2012, Vol. 38 Issue (1) :138-142    DOI:
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Principle and application of functional dimension driving in 3D tolerance analysis
Zheng Hongyong, Zheng Guolei, Zhao Huangjin*
School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� As the differences between functional dimensions and modeling parameters of the product bring limitations on the application of parameter-driven technique in tolerance analysis, a method based on functional dimension-driven technique was presented. Traditional dimensions were defined by constraints between geometric elements of the product model, and the mapping mechanism between functional dimension set and modeling parameter set was analyzed. The problem of functional dimension driven was converted to the solution of a set of non-linear equations, which was then solved by Newton's method. These methods were implemented on the UG system, and applied to analyze a selected mechanism.
Keywords�� tolerance analysis   functional dimension   dimension constraint   parameter driven     
Received 2010-09-27;
About author: ֣��ӿ(1987-)��,����������,˶ʿ��,hongyong_zheng@me.buaa.edu.cn.
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֣��ӿ, ֣����, �Իʽ�.��ά��������й��̳ߴ�����ԭ����Ӧ��[J]  �������պ����ѧѧ��, 2012,V38(1): 138-142
Zheng Hongyong, Zheng Guolei, Zhao Huangjin.Principle and application of functional dimension driving in 3D tolerance analysis[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V38(1): 138-142
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2012/V38/I1/138
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