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Error Modeling and Sensitivity Analysis of a Five-Axis Machine Tool

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  • Wenjie Tian
  • Weiguo Gao
  • Wenfen Chang
  • Yingxin Nie

Abstract

Geometric error modeling and its sensitivity analysis are carried out in this paper, which is helpful for precision design of machine tools. Screw theory and rigid body kinematics are used to establish the error model of an RRTTT-type five-axis machine tool, which enables the source errors affecting the compensable and uncompensable pose accuracy of the machine tool to be explicitly separated, thereby providing designers and/or field engineers with an informative guideline for the accuracy improvement by suitable measures, that is, component tolerancing in design, manufacturing, and assembly processes, and error compensation. The sensitivity analysis method is proposed, and the sensitivities of compensable and uncompensable pose accuracies are analyzed. The analysis results will be used for the precision design of the machine tool.

Suggested Citation

  • Wenjie Tian & Weiguo Gao & Wenfen Chang & Yingxin Nie, 2014. "Error Modeling and Sensitivity Analysis of a Five-Axis Machine Tool," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-8, May.
    • Handle: RePEc:hin:jnlmpe:745250
    DOI: 10.1155/2014/745250
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