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A geometric method for assembly dimension-chain analysis in digital environment

  • Huangjin Zhao*
  • , Guolei Zheng
  • , Lihua Duan
  • *Corresponding author for this work
  • Beihang University
  • China Airborne Missile Academy

Research output: Contribution to journalArticlepeer-review

Abstract

To solve the analysis of complex assembly dimension-chains efficiently, a new method, dimensional element-chain analysis (DECA), for the assembly dimension-chain analysis is presented based on products' digital models and parameter-driven technique. Firstly, the concepts of dimensional element (DE) and dimensional element-chain (DEC) are defined, and a geometric tolerancing model expressed by DE and its semantic mapping are also given. Secondly, the construction of DEC, the geometric measuring method for the calculation of error transfer coefficients of dimension-chain components and the realization of DECA are proposed. These methods are implemented on the CATIA V5 system, and applied to analyze the assembly dimension-chain of a selected mechanism. The preliminary application shows that the DECA method is valid for assembly dimension-chain analysis.

Original languageEnglish
Pages (from-to)104-108
Number of pages5
JournalJisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics
Volume20
Issue number1
StatePublished - Jan 2008

Keywords

  • CAD
  • Digital model
  • Dimension-chain analysis

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