Volume 30 Issue 1
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LI Qiang, WANG Zhong-yu, YAN Hu, WANG Qian. Gray dynamic prediction of large gear tooth profile error measurement under multi-impact factors coupling[J]. Journal of Aerospace Power, 2015, 30(1): 182-194. doi: 10.13224/j.cnki.jasp.2015.01.025
Citation: LI Qiang, WANG Zhong-yu, YAN Hu, WANG Qian. Gray dynamic prediction of large gear tooth profile error measurement under multi-impact factors coupling[J]. Journal of Aerospace Power, 2015, 30(1): 182-194. doi: 10.13224/j.cnki.jasp.2015.01.025
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Gray dynamic prediction of large gear tooth profile error measurement under multi-impact factors coupling

doi: 10.13224/j.cnki.jasp.2015.01.025

  • Key Laboratory of Precision Opto-Mechatronics Technology of Ministry of Education, School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 2013-06-06
  • Publish Date: 2015-01-28
    Abstract
  • A large side-mounted model of gear measurement mechanism was proposed, and the main error sources and features of measurement precision were analyzed. A grey dynamic prediction method was presented to deal with multi-impact factors coupling. Firstly, the error sources influenced tooth profile measurement precision were analyzed and demarcated according to the characteristics of measurement mechanism, and then the sensitivity coefficients of various error sources were calculated. Secondly, the limited error source data were separately resampled, and a grey generation operation was given; the measurement results affected by each error source were calculated in the resampling process; then the error coupling results could be obtained in the error synthesis process. Finally, the measurement precision of large gear tooth profile could be improved greatly by removing the coupling effect existing in measurement result. Compared with the measurement results obtained by the three-coordinate 0.5μm precision measurement machine, the experiment results show that the measurement system presented can meet the measurement requirement of tooth profile for large gear of three-level precision above.

     

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