Application of FMECA Method to Improve the Reliability of a CNC System

Abstract:

Based on the failure data of the CNC system in two years, the failure positions, failure modes, failure causes, failure sources of the CNC system hardware and software were analyzed. The more failure positions were analyzed further by FMECA method, proposing content, key point and method which should be paid attention to while using and maintaining the CNC system. The weak parts and its correlative components were also pointed out, so as to provide the basis for improving the reliability of the CNC system hardware and software.

• Periodical: Applied Mechanics and Materials (Volumes 268-270)
• Pages: 1499-1505
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.268-270.1499
• Online since: December 2012
• Authors: Tien Long Nguyen, Yi Qiang Wang, Er Hu Zhang
• Keywords: CNC System, Failure Analysis, Failure Mode Effects and Criticality Analysis (FMECA), Hardware, Software

References

[1] Information on http://www.engpapers.com/17612.html

[2] Zhang, H.B., Jia, Y.Z., Zhou, G.W., Pei, Y.H., Chen, Y.L. (2004b), "Failure mode, effects and analysis (FMECA) of CNC system", China Mechanical Engineering, Vol. 15 No.6, pp.491-4.

[3] Liu, X.J., Jia, Y.Z., Zhang, R.M. (2003), "Research on the control model and automatically generation of CNC reliability intelligent network", Chinese Journal of Mechanical Engineering, Vol. 39 No.9, pp.114-7.

DOI: 10.3901/jme.2003.09.114

[4] Gao Mao Guo, Qian Jin Shan, "Reliability analysis technology on aviation engine", Aviation Engine, No 4, pp.32-39, December 1995.

[5] Gong Dequan, "Application of FMECA method to improve design reliability", Shanghai Space, No 3, pp.25-29, September 1995.

[6] Wang, Y.Q., Jia, Y.Z, Yu, J.Y. (1999), "Failure probabilistic model of CNC lathes", Reliability Engineering and system Safety 65, 1999, pp.307-314.

DOI: 10.1016/s0951-8320(98)00102-1

[7] P.G. Hawkins, D.J. Woolons. "Failure modes and effects analysis of complex engineering systems using functional models". Artificial Intelligence in Engineering, 1998(12):375-397.

DOI: 10.1016/s0954-1810(97)10011-5

[8] Gionata Carmignani. "An Integrated Structural Framework to Cost-based FMECA Reliability Engineering and System Safety"，2009 (94):861-871.

DOI: 10.1016/j.ress.2008.09.009

[9] Kuoshong Wang, Yanghao Wan, "Reliability consideration of flexible manufacturing system from fuzzy information". Proceeding of IMCC, 1993 (2).

[10] Yi Dai, Yun-fei Zhoua, Ya-zhou Jia. "Distribution of time between failures of machining center based on type I censored data". Reliability Engineering and System Safety 2003(79):377-379.

DOI: 10.1016/s0951-8320(02)00243-0