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A variational geometric constraints network for a tolerance types specification

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Abstract

A geometric tolerance specification includes specifying the tolerance types and values for nominal geometry parts. In current computer-aided tolerancing practices, designers have to specify manually both tolerance types and values in a CAD system, usually starting out from single components. The paper presents a framework and computer implementation that provides automated methods for the specification of geometric tolerance types. Based on the ISO/TC 213 geometric product specification, a new concept of a variational geometric constraints network is presented. The generation and application of the network to specify geometric tolerance types is studied. An example is analysed to show the scheme to be effective, and the model for a tolerance specification, including the types and values specification, is presented.

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Acknowledgement

This research is supported by the National Science Foundation of China (Grant No. 60304015).

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Authors and Affiliations

  1. School of Mechanical Engineering, Shanghai Jiao Tong University, 200030, Shanghai, P.R. China

    Jie Hu

  2. Department of Automation, Tsinghua University, Beijing, P.R. China

    Guangleng Xiong

  3. Department of Mechanical Engineering, Zhejiang University, Hangzhou, P.R. China

    Z. Wu

Authors
  1. Jie Hu
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  2. Guangleng Xiong
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  3. Z. Wu
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Correspondence to Jie Hu.

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Hu, J., Xiong, G. & Wu, Z. A variational geometric constraints network for a tolerance types specification. Int J Adv Manuf Technol 24, 214–222 (2004). https://doi.org/10.1007/s00170-003-1572-7

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  • DOI: https://doi.org/10.1007/s00170-003-1572-7

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